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Fitbit Inc.

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Employees 1001-5000
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FY2017 Annual Report · Fitbit Inc.
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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
____________________________________________
FORM 10-K
____________________________________________

(Mark one) þ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2017
or

o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from ________________ to ________________
Commission file number: 001-37444
____________________________________________
FITBIT, INC.
(Exact name of registrant as specified in its charter)
____________________________________________

Delaware
(State or other jurisdiction of
 incorporation or organization)

20-8920744
(I.R.S. Employer Identification No.)

199 Fremont Street, 14th Floor
San Francisco, California 94105
(Address of principal executive offices) (Zip Code)

(415) 513-1000
(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

Class A Common Stock, par value $0.0001

Name of each exchange on which registered

New York Stock Exchange

Indicate by check mark whether the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes þ
No o

Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes o
No þ

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for
such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes þ
No o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant
to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes þ
No
o

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (§229.405 of this chapter) is not contained herein, and will not be contained, to the best of
registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. þ

Indicate  by  check  mark  whether  the  registrant  is  a  large  accelerated  filer,  an  accelerated  filer,  a  non-accelerated  filer,  a  smaller  reporting  company,  or  emerging  growth  company.  See  the
definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer
Non-accelerated filer

þ
o (Do not check if a smaller reporting company)

Accelerated filer
Smaller reporting company

Emerging growth company

o
o

o

If  an  emerging  growth  company,  indicate  by  check  mark  if  the  registrant  has  elected  not  to  use  the  extended  transition  period  for  complying  with  any  new  or  revised  financial  accounting
standards provided pursuant to Section 13(a) of the Exchange Act. o

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes o
No þ

The aggregate market value of the voting and non-voting common equity held by non-affiliates of the registrant, based on the closing sale price of the registrant's Class A common stock on June
30, 2017, the last business day of the registrant's most recently completed second fiscal quarter, as reported on the New York Stock Exchange, was approximately $1.0 billion.

As of February 20, 2018, there were 208,207,282 shares of the registrant’s Class A common stock outstanding and 31,289,730 shares of the registrant’s Class B common stock outstanding.

Portions of the registrant’s Definitive Proxy Statement for the Annual Meeting of Stockholders are incorporated herein by reference in Part II and Part III of this Annual Report on Form 10-K to
the extent stated herein. Such proxy statement will be filed with the Securities and Exchange Commission within 120 days of the registrant’s fiscal year ended December 31, 2017.

DOCUMENTS INCORPORATED BY REFERENCE

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Fitbit, Inc.
Form 10-K
For the Fiscal Year Ended December 31, 2017

TABLE OF CONTENTS

Item 1.

Item 1A.

Item 1B.

Item 2.

Item 3.

Item 4.

Item 5.

Item 6.

Item 7.

Item 7A.

Item 8.

Item 9.

Item 9A.

Item 9B.

Item 10.

Item 11.

Item 12.

Item 13.

Item 14.

Item 15.

Part I

Business

Risk Factors

Unresolved Staff Comments

Properties

Legal Proceedings

Mine Safety Disclosures

Part II

Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity
Securities

Selected Financial Data

Management's Discussion and Analysis of Financial Condition and Results of Operations

Quantitative and Qualitative Disclosures About Market Risk

Financial Statements and Supplementary Data

Changes in and Disagreements with Accountants on Accounting and Financial Disclosure

Controls and Procedures

Other Information

Part III

Directors, Executive Officers and Corporate Governance

Executive Compensation

Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

Certain Relationships and Related Transactions and Director Independence

Principal Accounting Fees and Services

Part IV

Exhibits, Financial Statement Schedules

Signatures

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NOTE ABOUT FORWARD-LOOKING STATEMENTS

This Annual Report on Form 10-K contains forward-looking statements, within the meaning of the Private Securities Litigation Reform Act of 1995, that involve
risks and uncertainties. All statements contained in this Annual Report on Form 10-K other than statements of historical fact, including statements regarding our
future results of operations and financial position, our business strategy and plans, and our objectives for future operations, are forward-looking statements. The
words  “believe,”  “may,”  “will,”  “estimate,”  “continue,”  “anticipate,”  “intend,”  “expect,”  and  similar  expressions  are  intended  to  identify  forward-looking
statements. Forward-looking statements contained in this Annual Report on Form 10-K include, but are not limited to, statements about:

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continued  investments  in  our  business,  including  but  not  limited  to  growing  our  international  sales,  Fitbit  Health  Solutions  and  recurring  revenue
opportunities, and the impact of those investments;
trends  in  our  operating  expenses,  including  personnel  costs,  research  and  development  expense,  sales  and  marketing  expense,  and  general  and
administrative expense;
trends in our device mix, average selling price and gross margins;
competitors and competition in our markets;
our ability to anticipate and satisfy consumer preferences;
our wearable products and their market acceptance and future potential;
our  ability  to  develop,  timely  introduce  and  effectively  manage  the  introduction  of  new  products  and  services  or  improve  our  existing  products  and
services, or engage or expand our user base;
our ability to expand into the healthcare sector;
potential insurance recoveries;
our ability to accurately forecast consumer demand and adequately manage inventory;
our ability to deliver an adequate supply of product to meet demand;
our ability to maintain and promote our brand and expand brand awareness;
our ability to detect, prevent, or fix defects;    
our reliance on third-party suppliers, contract manufacturers and logistics providers and our limited control over such parties;
trends in our quarterly operating results and other operating metrics;
trends in revenue, costs of revenue, and gross margin;
legal proceedings and the impact of such proceedings;
the effect of seasonality on our results of operations;
our ability to attract and retain highly skilled employees;
our expectation to derive the substantial majority of our revenue from sales of devices;
growing our sales of subscription-based services ;
the impact of our acquisitions in enhancing the features and functionality of our devices;
the impact of foreign currency exchange rates;
releasing and shipping new products and services, and the timing thereof;
the  sufficiency  of  our  existing  cash  and  cash  equivalent  balances  and  cash  flow  from  operations  to  meet  our  working  capital  and  capital  expenditure
needs for at least the next 12 months; and
general market, political, economic and business conditions .

We caution you that the foregoing list does not contain all of the forward-looking statements made in this Annual Report on Form 10-K.

You  should  not  rely  upon  forward-looking  statements  as  predictions  of  future  events.  We  have  based  the  forward-looking  statements  contained  in  this  Annual
Report  on  Form  10-K  primarily  on  our  current  expectations  and  projections  about  future  events  and  trends  that  we  believe  may  affect  our  business,  financial
condition, operating results, and prospects. The outcome of the events described in these forward-looking statements is subject to risks, uncertainties, and other
factors described in the section titled “Risk Factors” and elsewhere in this Annual Report on Form 10-K. Moreover, we operate in a very competitive and rapidly
changing environment. New risks and uncertainties emerge from time to time, and it is not possible for us to predict all risks and uncertainties that could have an
impact  on  the  forward-looking  statements  contained  in  this  Annual  Report  on  Form  10-K.  We  cannot  assure  you  that  the  results,  events,  and  circumstances
reflected in the forward-looking statements will be achieved or occur, and actual results, events, or circumstances could differ materially from those described in
the forward-looking statements.

The forward-looking statements made in this Annual Report on Form 10-K relate only to events as of the date on which the statements are made. We undertake no
obligation to update any forward-looking statements made in this Annual Report on Form 10-K to reflect events or circumstances after the date of this Annual
Report on Form 10-K or to reflect new information or the

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occurrence of unanticipated events, except as required by law. We may not actually achieve the plans, intentions, or expectations disclosed in our forward-looking
statements and you should not place undue reliance on our forward-looking statements. Our forward-looking statements do not reflect the potential impact of any
future acquisitions, mergers, dispositions, joint ventures, or investments we may make.

PART I

Item 1. Business

Our Vision

To make everyone in the world healthier.

Our Mission

To  help  people  achieve  positive  health,  wellness,  and  fitness  outcomes  by  empowering  them  with  intelligent  insights,  personalized  guidance,  and  the

motivation to reach their goals.

Overview

Fitbit  is  a  technology  company  focused  on  delivering  health  solutions  that  impact  health  outcomes.  The  Fitbit  platform  combines  wearable  devices  with
software and services to give our users tools to help them reach their health and fitness goals, augmented by general purpose features that add further utility and
drive user engagement. Our wearable devices, which include health and fitness trackers and smartwatches, enable our users to view data about their daily activity,
exercise and sleep in real-time. Our software and services, which include an online dashboard and mobile app, provide our users with data analytics, motivational
and social tools, and virtual coaching through customized fitness plans and interactive workouts. In addition, our software and services drive engagement and can
be leveraged to provide personalized insights. Together, our devices, services, and software have helped millions of users on their health and fitness journeys be
more active, sleep better, eat smarter, and manage their weight. Fitbit appeals to a wide spectrum of consumers by addressing key health and fitness needs with
advanced technology embedded in simple-to-use products and services.

The  core  of  our  platform  is  our  family  of  wearable  devices.  These  devices  automatically  track  users’  daily  steps,  calories  burned,  distance  traveled,  and
active minutes, and display real-time feedback to encourage users to become more active in their daily lives. Most of our wearable devices also measure floors
climbed, and sleep duration and quality, and our more advanced products track heart rate, and GPS-based information such as speed, distance, and exercise routes.
Several  of  our  devices  also  have  more  advanced  features  such  as  the  ability  to  receive  call  and  text  notifications,  and  our  first  smartwatch,  Fitbit  Ionic,  offers
contactless  payments,  on-board  music,  notifications,  and  several  apps.  To  accompany  certain  of  our  products,  we  offer  accessories  that  include  wireless
headphones, interchangeable wrist bands and frames, colored clips, device charging cables, wireless sync dongles, band clasps, and Fitbit apparel. In addition, we
offer  a  Wi-Fi  connected  scale  that  records  weight,  body fat,  and  BMI. We  are  able  to  enhance  the  functionality  and  features  of  our  connected  devices  through
wireless updates.

Our platform also includes software that helps to encourage healthy behavior changes in three areas: activity, sleep, and nutrition. The software includes our
online  dashboard  and  mobile  apps,  which  wirelessly  and  automatically  sync  with  our  devices.  It  enables  users  to  see  trends  and  achievements  and,  access
motivational  tools  such  as  coaching  and  guidance,  or  connections  to  our  community.  We  believe  gamifying  behaviors  and  providing  virtual  badges,  real-time
progress notifications, support, and a competition dashboard helps drive engagement. Our direct connection with our users also enables us to provide personalized
insights. In addition, we extend the value of our platform through our open API, which enables third-party developers to create health and fitness apps that interact
with our platform. Through our open platform and our large community of users, we have established an ecosystem that includes thousands of third-party health
and fitness apps that connect with our products and enhance the Fitbit experience.

Our platform enables a wide range of people to get fit their own way, whatever their interests and goals. Our users range from people interested in improving
their health and fitness through everyday activities to endurance athletes seeking to maximize their performance. To address this wide range of needs, we design
our devices, apps, and services to be easy to use so that they fit seamlessly into peoples’ daily lives and activities. Our users can sync their Fitbit devices with and
view  their  dashboard  on  their  computers  and  over  200  mobile  devices,  including  iOS,  Android,  and  Windows  Phone  products.  This  cross-platform  capability
coupled with broad global distribution have enabled us to attract what we believe is one of the largest community of wearable device users. The size of our user
community  increases  the  likelihood  that  our  users  will  be  able  to  find  and  engage  with  like-minded  individuals,  friends,  and  family,  creating  positive  network
effects that reinforce our growth. In addition, data from our

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large community enables us to enhance our product features, provide improved insights, and offer more valuable guidance for our users.

The Fitbit Platform

Our wearable platform is designed to enable our users to improve their health and fitness by:

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Tracking  activities  through  our  wearable  devices.  We  empower  users  to  live  healthier,  more  active  lifestyles  by  both  tracking  the  information  that
matters most to them and providing them with real-time feedback. Our wearable devices span multiple styles, form factors, and price points, and, as a
result, address the needs of a wide range of people—from people simply looking to get fit by increasing their activity levels to endurance athletes seeking
to  maximize  their  performance.  Our  devices,  which  include  both  health  and  fitness  trackers  and  smartwatches  and  our  Wi-Fi  connected  scale,  feature
proprietary  and  advanced  sensor  technologies  and  algorithms  and  long  battery  lives.  In  addition,  the  ease  of  use  and  small,  lightweight,  and  durable
designs of our devices help them fit effortlessly into our users’ lifestyles.

Learning through our online dashboard and mobile apps. We offer our users a personalized online dashboard and mobile apps that sync automatically
with and display data from our wearable devices. We provide our users with a wide range of information and analytics, such as charts and graphs of their
progress  and  the  ability  to  log  caloric  intake.  Both  our  online  dashboard  and  mobile  apps  are  free  and  work  with  all  of  our  wearable  devices.  Our
internally-developed software is regularly updated and enhanced, increasing the utility of our platform.

Staying motivated through social features, notifications, challenges, and virtual badges. Our products help millions of users achieve their goals both
individually  and  within  the  community  that  they  choose.  On  an  individual  level,  we  motivate  users  by  delivering  real-time  feedback,  including
notifications, leaderboard and challenge updates, and virtual badges. Our platform also offers users social features that allow them to view and participate
in  a  social  feed,  receive  and  provide  support  through  specific  groups  organized  by  activity  or  health,  and  engage  in  friendly  competition.  Users  can
securely share some or all of their health and fitness information on an opt-in basis with friends, family, and other parties and compete against each other
on key statistics through leaderboards and daily or multi-day fitness challenges. In addition, users can choose to share their data with thousands of third-
party apps and through social networks on an opt-in basis. As users create  more connections  on our network, they often benefit  from higher levels of
activity.

Improving health and fitness through goal-setting, personalized insights, premium services, and virtual coaching. Our primary goal is to help our users
improve their health and fitness. We believe our platform assists users in changing their daily behavior, such as going for a run or walking more to reach a
goal  or  win  a  challenge.  We  empower  our  users  to  set  their  own  health  and  fitness  goals  and  track  their  progress  towards  these  goals.  We  also  offer
premium services on a subscription basis that provide personalized insights and virtual coaching through customized fitness plans and interactive video-
based exercise experiences on mobile devices and computers. Our premium services feature in-depth data analysis and personalized reports, as well as
benchmarking against peers.

Our Competitive Strengths

We believe our competitive strengths are brand, community, and data.

Brand

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Fitbit is the leading global wearables brand. We stand for health and fitness and have a trusted relationship with our users. We have a singular focus on
driving positive health outcomes by targeting activity, sleep, and nutrition.

Broad and differentiated go-to-market strategy. We have developed a broad go-to-market strategy that reaches individuals regardless of where they shop.
We sell our products in over 45,000 retail stores and in 86  countries, through our retailers’ websites, through our online store at Fitbit.com, and as part of
our corporate wellness offering. We believe the breadth and depth of our established selling channels and prominent presence in retail stores would be
difficult for a competitor to replicate.

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Community

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Broad range of wearable devices. We believe everyone’s approach to fitness is different,  so we offer our users a range of wearable devices spanning
multiple  styles,  form  factors,  and  price  points  to  allow  people  to  find  the  devices  that  fit  their  lifestyles  and  goals.  In  addition  to  our  wrist-based  and
clippable wearable health and fitness devices, we also offer a Wi-Fi connected scale that tracks weight, body fat, and BMI. We believe the breadth of our
wearable devices provides us with a competitive advantage over our competitors, which often have a more limited line of products.

Large and growing community and powerful network effects. We believe the size of our community of users makes it more likely that users can connect
with like-minded individuals, friends, and family and attracts many new users to our platform. Achieving meaningful health and fitness outcomes over the
long-term  is  difficult.  We  believe  that  access  to  a  network  of  users  who  provide  support  and  motivation  can  increase  a  user’s  engagement  with  and
duration  on  the  platform,  especially  when  that  network  provides  positive  support  as  observed  on  our  social  feed.  Each  of  our  users  adds  value  to  our
platform by making progress towards their goals and syncing their data with our platform, which we leverage to provide better insights for our users. As
our community of users continues to grow, we will develop a deeper understanding of our users and expect to deliver additional value to them through
more  detailed  insights  and  analysis.  We  believe  the  growth  and  scale  of  our  user  community  allows  users  to  become  not  only  more  engaged  with
personalized and relevant content, but also less likely to leave a community in which many of their friends and family are active members.

Direct relationship and continuous communication with our users. The connectivity of our devices allows us to better understand our users’ health and
fitness goals. This connectivity also allows us to communicate the most relevant analysis, features, advice, and content to our users throughout the day
with our online dashboard, mobile apps, emails, and notifications. It also allows us to focus on developing software that influences the behavior of our
users  to  improve  health  outcomes,  which  can  not  only  drive  new  forms  of  monetization,  but  also  further  engagement  and  duration  of  usage.  We  also
utilize these communication channels to help our users become aware of our new products and services.

Data

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Advanced,  purpose-built  hardware  and  software  technologies.  Our  wearable  devices  leverage  industry-standard  technologies,  such  as  Bluetooth  low
energy, as well as proprietary technologies, such as our PurePulse continuous heart rate tracking and our algorithms that measure and analyze user health
and fitness metrics. We devote significant resources to ensure that our devices effortlessly fit into our users’ lifestyles. For example, we design our small,
lightweight,  durable,  and  fashionable  products  to  be  optimized  for  power  efficiency,  which  enables  automatic  wireless  data  syncing  without
compromising battery life. We place a similarly strong emphasis on our online dashboard and mobile apps to provide users with visualization of their
progress and personalized guidance. Our highly-scalable cloud infrastructure enables millions of users around the world to engage with our platform in
real-time.

Broad  mobile  compatibility  and  open  API.  Our  broad  mobile  compatibility  and  open  API  enable  a  large  health  and  fitness  ecosystem  that  provides
additional  value  to  our  existing  users  and  extends  our  reach  to  potential  new users.  Our  users  can  sync  their  Fitbit  devices  with  and  view  their  online
dashboard  on  their  computers  and  over  200  mobile  devices,  including  iOS,  Android,  and  Windows  Phone  products.  Additionally,  we  enable  seamless
integration with thousands of apps across iOS, Android, and Windows Phone through our open API, which allows our users to share data with third-party
apps on an opt-in basis.

Our Devices and Accessories

Our line of devices includes Fitbit Surge®, Fitbit Blaze®, Fitbit Charge 2®, Alta HR™, Alta®, Fitbit Flex 2®, Fitbit One® and Fitbit Zip® activity trackers,
as  well  as  Fitbit  Ionic™  smartwatch,  and  Fitbit  Aria  2™  Wi-Fi  Smart  Scales.  We  also  offer  a  line  of  accessories  including  bands  and  frames  for  some  of  our
devices, as well as Fitbit Flyer™, our wireless headphone designed for fitness.

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Our Software and Services

We believe our software and services offer the ability to engage the user and effect behavior change, representing an opportunity to diversify our revenue
stream and deepen our relationship with our users. As we continue to work towards driving and influencing health outcomes, we believe there is an opportunity for
our software to play a role in chronic disease management. We offer both enterprise software such as corporate challenges for Fitbit Health Solutions customers
and  coaching  and  guidance  for  our  retail  customers.  Revenue  from  our  software  and  services  has  historically  represented  less  than  one  percent  of  our  annual
revenue.

Fitbit online dashboard and mobile apps. We offer our users a personalized online dashboard and mobile apps that sync automatically with, and display
real-time data from, our wearable devices. Through these offerings, we provide users with charts and graphs of their progress, deeper analysis of their activities,
and the ability to log caloric intake. Additionally, we motivate users through real-time feedback including notifications, leaderboard and challenge updates, and
virtual  badges.  Our platform  also  offers  users social  features,  such as  access  to an  online  community  of  users, leaderboards  and  challenges,  that  allow  users to
receive and provide support and engage in friendly competition. Our online dashboard and mobile apps are available for free through the iOS App Store, Google
Play, Windows Store, and on Fitbit.com.

Fitbit Coach. In March 2015, we acquired FitStar, a provider of interactive video-based exercise experiences on mobile devices and computers that utilize
proprietary algorithms to adjust and customize workouts for individual users based on data gathered during their workouts. We rebranded FitStar to Fitbit Coach
beginning in October 2017. Through our Fitbit Coach offering, we provide exercise programs through personal trainer and yoga apps that continuously adjust to
our users based on feedback throughout the workout.

  Our Commitment to Privacy

We are committed to respecting our users’ privacy, letting our users decide how their information is used and shared, and keeping their data safe.

We have developed our data collection  and use practices in accordance  with the Fair Information Practice Principles, or FIPPs. We are committed to the

following privacy principles as outlined in our privacy policy:

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Transparent  and  Easy  to  Understand  Policies.  We  are  transparent  about  our  data  practices  and  explain  them  in  clear  language.  Our  data  collection
practices are designed to only collect data that is useful to improving our products, services, and user experience.

No Unexpected Uses. We never sell personally identifiable data or use it other than as described in our privacy policy.

Clear Notice and Consent. We only share personally identifiable data with third parties, including employers, when our users consent to the sharing and
under the limited circumstances outlined in our privacy policy where users’ personally identifiable data can be shared without specific consent, such as
our receipt of search warrants or subpoenas from law enforcement agencies or in response to a validly issued legal process in a civil litigation matter.

Prioritize  Security.  We  take  the  security  of  our  users’  data  seriously.  We  use  a  combination  of  technical  and  administrative  security  controls  to  help
ensure the security of user data.

Research and Development

We are passionate about developing innovative products and services that empower our users to reach their health and fitness goals. We believe our future
success depends on our ability to develop new products and features that expand the versatility and performance of our existing platform, and we plan to continue
to invest significant resources to enhance performance, functionality, convenience, and style for our users.

Our global research and development team supports the design and development of our wearable devices, proprietary sensors, firmware, data algorithms, and
online dashboard and mobile apps. Our team is also researching new advanced science to help deepen our penetration of wearable devices. The team is comprised
of  dedicated  research  employees,  electrical  engineers,  mechanical  engineers,  firmware  engineers,  site  operations  engineers,  and  mobile  app  developers.  Our
research and development team is primarily based at our headquarters in San Francisco, California, as well as several other worldwide locations.

Our research and development expenses were $343.0 million , $320.2 million , and $150.0 million , for 2017 , 2016 , and 2015 , respectively.

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Manufacturing, Logistics and Fulfillment

We  outsource  the  manufacturing  of  our  products  to  several  contract  manufacturers.  These  contract  manufacturers  produce  our  products  in  their  facilities,
which are primarily located in Asia. The components used in our products are sourced either directly by us or on our behalf by our contract manufacturers from a
variety of component suppliers selected by us and our contract manufacturers, and are located worldwide. Our operations employees coordinate our relationships
with our contract manufacturers and component suppliers. We believe that using outsourced manufacturing enables greater scale and flexibility at lower costs than
establishing our own manufacturing facilities. We evaluate our current contract manufacturers and component suppliers on an ongoing basis, including whether or
not to utilize new or alternative contract manufacturers or component suppliers.

We work with third-party fulfillment partners that deliver our products from multiple locations worldwide, which allows us to reduce order fulfillment time,

reduce shipping costs, and improve inventory flexibility.

Sales Channels and Customers

We sell our products through three primary channels:

Retail and distribution channel. We offer our products in over 45,000 retail stores and in 86 countries. We focus on building close relationships with our
retailers, working with them to merchandise our products in a compelling manner both in-store and on their e-commerce sites, promoting our products through
their marketing efforts, and educating their sales forces about our products. In addition, we sell to distributors who resell our products to retailers.

Consumer electronics and specialty retailers. Our products are sold by retailers with a large domestic and international presence such as Best Buy.
e-Commerce retailers. Our products are sold on Amazon.com, in addition to the e-commerce sites of our retailers.

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• Mass merchant , department store, and club retailers. Our products are sold by large retailers, including Target, Costco, Macy’s, Kohl’s, and Walmart.
Sporting goods and outdoors retailers. Our products are sold by sporting goods and outdoors retailers, including Dick’s Sporting Goods and REI.
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• Wireless carriers. Our products are sold by wireless carriers, including Verizon.
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Distributors. Our products are sold by a network of distributors.

Consumer  direct  channel.  We  sell  our  full  line  of  products  directly  to  consumers  in  the  United  States  and  other  countries  through  our  online  store  at
Fitbit.com,  which  represented  10%  and  7%  of  our  revenue  in  2017  and  2016,  respectively.  We  drive  consumers  to  our  website  through  online  and  offline
advertising as well as marketing promotions.

Fitbit Health Solutions channel. We believe our strong brand recognition and success with consumers makes Fitbit a desirable partner for the healthcare and
enterprise ecosystem. Fitbit Health Solutions partners and sells offerings to employer health and wellness plans, health plans, hospitals, and researchers. We offer
products and services to employers looking to enhance their employee wellness programs. We sell our corporate wellness offering directly to employers or through
partners, such as wellness program providers and insurance companies. Through our corporate wellness offering, employers can purchase our products at quantity
discounts for their employees.  We  also offer a range of other  services  to maximize  wellness program  success, such as easy employee  onboarding,  an engaging
employee leaderboard, real-time group reporting for company administrators, and employee insight into progress towards program goals. We can also integrate
with our partners’ existing wellness programs.

Backlog

There is a relatively short cycle between order and shipment of our sales. Therefore, we believe that backlog information is not material to the understanding

of our business.

Marketing and Advertising

Our marketing and advertising programs are focused on building global brand awareness, increasing product adoption, including the launch of new product
offerings,  and  driving  sales.  Our  marketing  and  advertising  efforts  target  a  wide  range  of  consumers  and  leverage  traditional  advertising  methods  (including
television, cinema, and print magazines), sponsorships and public relations, digital marketing, channel marketing, and endorsements by professional athletes and
celebrities.

Our  in-store  merchandising  strategy  focuses  on  our  point  of  purchase,  or  POP displays.  We  install  our  freestanding,  in-line,  and  endcap  POP displays  of

varying sizes at our various retailers. These displays communicate our marketing messages, present

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our products and their features and, in many cases, allow consumers to try on our devices and view an interactive app that enables them to learn more about our
products.

Intellectual Property

Intellectual property is an important aspect of our business, and we seek protection for our intellectual property as appropriate. We rely upon a combination
of  patent,  copyright,  trade  secret,  and  trademark  laws  and  contractual  restrictions,  such  as  confidentiality  agreements  and  licenses,  to  establish  and  protect  our
proprietary rights.

As  the  leading  global  wearable  brand,  we  have  developed  a  significant  patent  portfolio  to  protect  certain  elements  of  our  proprietary  technology.  As  of
December  31,  2017  ,  we  had  399  issued  patents.  We  continually  review  our  development  efforts  to  assess  the  existence  and  patentability  of  new  intellectual
property. We pursue the registration of our domain names and trademarks and service marks in the United States and in certain locations outside the United States.

Competition

The  market  for  wearable  devices  is  both  evolving  and  competitive.  The  wearable  devices  category  has  a  multitude  of  participants  including  specialized
consumer electronics companies such as Garmin and Nokia, and traditional watch companies such as Fossil and Movado. In addition, many large, broad-based
consumer electronics companies either compete in our market or adjacent markets or have announced plans to do so, including Apple, Google, LG, and Samsung.
For example, Apple sells the Apple Watch, which is a smartwatch with broad-based functionalities, including some health and fitness tracking capabilities, and
Apple has sold a significant volume of its smartwatches since introduction. We also face competition from manufacturers of lower-cost devices, such as Xiaomi
and its Mi Band device. In addition, we compete with a wide range of stand-alone health and fitness-related mobile apps that can be purchased or downloaded
through mobile app stores.

The principal competitive factors in our market include:

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brand awareness and focus;
breadth of product offerings;
battery life, sensor technology, and tracking features;
online and mobile app experience;
cross-platform capability (iOS, Android, and Windows Phone);
software algorithms;
partnerships;
strength of sales and marketing efforts; and
distribution strategy.

We believe we compete favorably with our competitors on the basis of these factors as a result of our community of users, leading global brand, and data.
The size of our user community increases the likelihood that our users will be able to find and engage with like-minded individuals, friends, and family, creating
positive network effects. We believe that our success with consumers, along with our focus on health and fitness, makes us an attractive wearables partner for the
healthcare  and  enterprise  ecosystem.  Furthermore,  our  platform  and  open  API  have  together  enabled  us  to  establish  a  large  and  growing  health  and  fitness
ecosystem that not only provides additional value to our existing users, but also extends our reach to potential new users.

Employees

As of December 31, 2017 , we had 1,749 global employees. We have not experienced any work stoppages. We consider our relationship with our employees

to be good.

Information about Geographic Revenue

Information about geographic revenue is described in Note 11, “Significant Customer Information and Other Information” in the notes to our consolidated

financial statements.

Corporate Information

We were incorporated in Delaware in March 2007 as Healthy Metrics Research, Inc. We changed our name to Fitbit, Inc. in October 2007. We completed
our  initial  public  offering  in  June  2015  and  our  Class  A  common  stock  is  listed  on  The  New  York  Stock  Exchange  under  the  symbol  “FIT.”  Our  principal
executive offices are located at 199 Fremont Street, 14th Floor, San

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Francisco, California 94105, and our telephone number is (415) 513-1000. Our website address is www.fitbit.com and our investor relations website address is
http://investor.fitbit.com. The information on, or that can be accessed through, our website is not incorporated by reference into this Annual Report on Form 10-K.
Fitbit, the Fitbit logo, Fitbit Ionic, Fitbit Flyer, Fitbit Surge, Fitbit Blaze, Fitbit Charge 2, Fitbit Charge HR, Alta, Fitbit Charge, Fitbit Flex 2, Fitbit Flex, Fitbit
One, Fitbit Zip, Aria, PurePulse, SmartTrack, FitStar, and our other registered or common law trade names, trademarks, or service marks appearing in this Annual
Report on Form 10-K are our intellectual  property. This Annual Report on Form 10-K contains additional trade names, trademarks, and service marks of other
companies that are the property of their respective owners.

Through a link on our website, we make available the following filings as soon as reasonably practicable after they are electronically filed with or furnished
to the Securities and Exchange Commission, or SEC: our Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K, and any
amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended, or the Exchange Act. All
such filings are available free of charge. The public may also read and copy any materials we file with the SEC at the SEC’s Public Reference Room at 100 F
Street, NE, Washington DC 20549. The public may obtain information on the operation of the Public Reference Room by calling the SEC at 1-800-SEC-0330. The
SEC also maintains a website at www.sec.gov that contains all reports that we file or furnish with the SEC electronically.

Item 1A. Risk Factors

An  investment  in  our  Class  A  common  stock  involves  a  high  degree  of  risk.  You  should  carefully  consider  the  risks  and  uncertainties  described  below,
together with all of the other information in this Annual Report on Form 10-K, including the section titled “Management’s Discussion and Analysis of Financial
Condition and Results of Operations” and our consolidated  financial  statements  and related notes, before making a decision to invest  in our Class A common
stock. Our business, operating results, financial condition, or prospects could be materially and adversely affected by any of these risks and uncertainties. If any of
these risks actually occurs, the trading price of our Class A common stock could decline and you might lose all or part of your investment. Our business, operating
results, financial performance, or prospects could also be harmed by risks and uncertainties  not currently known to us or that we currently  do not believe  are
material.

Risks Related to Our Business

We  operate  in  a  highly  competitive  market.  If  we  do  not  compete  effectively,  our  prospects,  operating  results,  and  financial  condition  could  be  adversely
affected.

The wearable  device market is highly competitive,  with companies offering  a variety of products and services. Wearables  can be broadly defined as connected
health and fitness trackers, fitness watches, smartwatches and devices beyond the wrist. We expect competition in our market to intensify in the future as new and
existing competitors introduce new or enhanced products and services that are potentially more competitive than our products and services. In terms of units sold,
we have primarily operated in the connected health and fitness tracker segment of the wearables device market. The wearable device market has a multitude of
participants, including specialized consumer electronics companies, such as Garmin and Nokia, and traditional watch companies such as Fossil and Movado. In
addition, many large, broad-based consumer electronics companies either compete in our market or adjacent markets or have announced plans to do so, including
Apple, Google, LG and Samsung. For example, Apple sells the Apple Watch, which is a smartwatch with broad-based functionalities, including some health and
fitness  tracking  capabilities,  and  Apple  has  sold  a  significant  volume  of  its  smartwatches  since  introduction.  Moreover,  smartwatches  with  health  and  fitness
functionalities may displace the market for traditional tracker devices. We also face competition from manufacturers of lower-cost devices, such as Xiaomi and its
Mi Band device. In addition, we compete with a wide range of stand-alone health and fitness-related mobile apps that can be purchased or downloaded through
mobile  app  stores.  We  believe  many  of  our  competitors  and  potential  competitors  have  significant  advantages,  including  longer  operating  histories,  ability  to
leverage their sales efforts and marketing expenditures across a broader portfolio of products and services, larger and broader customer bases, more established
relationships with a larger number of suppliers, contract manufacturers, and channel partners, greater brand recognition, ability to leverage app stores which they
may  operate,  experience  manufacturing  particular  wearable  devices,  such  as  smartwatches,  and  greater  financial,  research  and  development,  marketing,
distribution, and other resources than we do. Our competitors and potential competitors may also be able to develop products or services that are equal or superior
to ours, achieve greater market acceptance of their products and services, and increase sales by utilizing different distribution channels than we do. Some of our
competitors may aggressively discount their products and services in order to gain market share, which could result in pricing pressures, reduced profit margins,
lost market share, or a failure to grow market share for us. In addition, new products may have lower selling prices or higher costs than legacy products, which
could  negatively  impact  our  gross  margins  and  operating  results.  Furthermore,  current  or  potential  competitors  may  be  acquired  by  third  parties  with  greater
available resources. As a result of such acquisitions, our current or potential competitors might be able to adapt more quickly to new technologies and consumer
needs, devote greater

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resources  to  the  promotion  or  sale  of  their  products  and  services,  initiate  or  withstand  substantial  price  competition,  take  advantage  of  acquisition  or  other
opportunities more readily or develop and expand their products and services more quickly than we do. If we are not able to compete effectively against our current
or potential competitors, our prospects, operating results, and financial condition could be adversely affected.  

If we are unable to anticipate and satisfy consumer preferences in a timely manner, our business may be adversely affected.

Our  success  depends  on  our  ability  to  anticipate  and  satisfy  consumer  preferences  in  a  timely  manner.  All  of  our  products  and  services  are  subject  to
changing  consumer  preferences  that  cannot  be  predicted  with  certainty.  In  terms  of  units  sold,  we  have  primarily  operated  in  the  connected  health  and  fitness
tracker  segment  of  the  wearables  device  market.  However,  consumer  preference  has  increasingly  shifted  to  the  smartwatch  segment  of  the  wearables  device
market. Although we intend to build out our smartwatch offerings, consumers may decide not to purchase our products and services as their preferences could shift
rapidly to different types of wearable devices or away from these types of products and services altogether. Our future success depends in part on our ability to
anticipate  and  respond  to  shifts  in  consumer  preferences.  If  we do  not  anticipate  such  shifts  in  a  timely  manner,  our  reputation  and  business  may  be  adversely
affected.

Our newer products and services that have additional features or new product designs, such as Fitbit Ionic and Fitbit Aria 2, may also have higher prices
than  many  of  our  earlier  products  and  the  products  of  some  of  our  competitors,  which  may  not  appeal  to  consumers  or  only  appeal  to  a  smaller  subset  of
consumers. It is also possible that competitors could introduce new products and services that negatively impact consumer preference for our wearable devices,
which could result in decreased sales of our products and services and a loss in market share. Accordingly, if we fail to anticipate and satisfy consumer preferences
in a timely manner, or if it is perceived that our future products and services will not satisfy consumer preferences, our business may be adversely affected.

If we are unable to successfully develop, timely introduce, and effectively manage the introduction of new products and services or enhance existing products
and services, our business may be adversely affected.

We must continually develop and introduce new products and services and improve and enhance our existing products and services to maintain or increase
our  sales.  We  believe  that  our  future  growth  depends  on  continuing  to  engage  and  expand  our  user  base  by  introducing  new  form  factors,  software
services  and  other  offerings.  For  example,  in  the  third  quarter  of  2017,  we  started  shipping  Fitbit  Ionic,  our  smartwatch  and  Fitbit  Flyer,  our  first  Bluetooth
headphone. In September 2017, we also announced our participation in the Food and Drug Administration’s, or FDA, new digital health software precertification
pilot program aimed to develop a new approach to regulating digital health technology and to promote innovation of high-quality and effective digital health tools.
The success of new or enhanced products and services may depend on a number of factors including, anticipating and effectively addressing consumer preferences
and demand, timely  and successful  research  and development,  the success of our sales and marketing efforts,  effective  forecasting and management of product
demand, purchase commitments, and inventory levels, effective management of manufacturing and supply costs, and the quality of or defects in our products.

The development of our products and services is complex and costly, and we typically have several products and services in development at the same time.
Given the complexity, we occasionally have experienced, and could experience in the future, delays in completing the development and introduction of new and
enhanced products and services, product costs that are higher than planned, or lower than expected manufacturing yields of new and enhanced products, which may
adversely  affect  our  revenue  and  gross  margins.  Unanticipated  problems  in  developing  products  and  services  could  also  divert  substantial  research  and
development  resources,  which  may  impair  our  ability  to  develop  new  products  and  services  and  enhancements  of  existing  products  and  services,  and  could
substantially increase our costs. Problems in the design or quality of our products or services may also have an adverse effect on our brand, business, financial
condition, and operating results.

We must also successfully manage introductions of new or enhanced products. Introductions of new or enhanced products could adversely impact the sales
of  our  existing  products  to  retailers  and  consumers.  For  instance,  retailers  often  purchase  less  of  our  existing  products  in  advance  of  new  product  launches.
Furthermore, we may experience greater returns from retailers or users of existing products, or retailers may be granted stock rotation rights and price protection.
Moreover, consumers may decide to purchase new or enhanced products instead of existing products. We may face challenges managing the inventory of existing
products, which could lead to excess inventory and discounting of our existing products. In addition, new products may have lower selling prices or higher costs
than  legacy  products,  which  could  negatively  impact  our  gross  margins  and  operating  results.  We  have  also  historically  incurred  higher  levels  of  sales  and
marketing  expenses  accompanying  each  product  introduction.  Accordingly,  if  we  fail  to  effectively  manage  introductions  of  new  or  enhanced  products,  our
operating results could be harmed.

Our  operating  results  could  be  materially  harmed  if  we  are  unable  to  accurately  forecast  consumer  demand  for  our  products  and  services  and  adequately
manage our inventory.

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If we fail to accurately forecast consumer demand, we may experience excess inventory levels or a shortage of products available for sale. Our ability to
accurately  forecast  demand  for  our  products  and  services  could  be  affected  by  many  factors,  including  an  increase  or  decrease  in  consumer  demand  for  our
products and services or for products and services of our competitors, product and service introductions by us and our competitors, channel inventory levels, sales
promotions by us or our competitors, unanticipated changes in general market conditions, and the weakening of economic conditions or consumer confidence in
future economic conditions. To ensure adequate inventory supply, we must forecast inventory needs and expenses and place orders sufficiently in advance with our
suppliers and contract manufacturers based on our estimates of future demand for particular products. We face challenges acquiring adequate and timely supplies
of our products to satisfy the levels of demand, particularly in connection with new product introductions, which we believe negatively affects our revenue. As we
continue  to  introduce  new  products,  we  may  face  challenges  managing  the  inventory  of  existing  products.  No  assurance  can  be  given  that  we  will  not  incur
additional charges in future periods related to our inventory management or that we will not underestimate or overestimate forecasted sales in a future period.

Inventory levels in excess of consumer demand may result in inventory write-downs or write-offs and the sale of inventory at discounted prices, which have
caused and may continue to cause our gross margin to decline and could impair the strength of our brand. For example, during the fourth quarter of 2016, as a
result  of  reduced  demand,  we  recorded  write-downs  for  excess  and  obsolete  inventory,  accelerated  depreciation  of  manufacturing  and  tooling  equipment,  and
recorded  a  liability  to  our  contract  manufacturers  for  unutilized  manufacturing  capacity  and  components.  In  addition,  we  offered,  and  recorded  reserves  for,
additional rebates and promotions during the fourth quarter of 2016 to retailers and distributors. During 2017, we recorded additional write-downs for excess and
obsolete inventory, accelerated depreciation of manufacturing and tooling equipment due to continued reduced demand, price protection on certain products, and
rebates.  Reserves  and  write-downs  for  rebates,  promotions,  excess  inventory,  tooling  and  manufacturing  capacity  are  recorded  based  on  our  forecast  of  future
demand. Actual future demand could be less than our forecast which may result in additional reserves and write-downs in the future or actual demand could be
stronger than forecast which may result in a reduction to previously recorded reserves and write-downs in the future and increase the volatility of our operating
results.

Conversely, if we underestimate consumer demand for our products, we may in future periods be unable to meet customer, retailer or distributor demand for
our products.  We may also  be required  to  incur  higher  costs  to secure  the  necessary  production  capacity  and components  if  we underestimate  demand  and our
business and operating results could be adversely affected, including damage to our brand and customer relationships.

Our quarterly operating results or other operating metrics may fluctuate significantly, which could cause the trading price of our Class A common stock to
decline.

Our quarterly operating results and other operating metrics have fluctuated in the past and may continue to fluctuate from quarter to quarter. We expect that

this trend will continue as a result of a number of factors, many of which are outside of our control and may be difficult to predict, including:

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the level of demand for our wearable devices and our ability to maintain or increase the size and engagement of our community of users;
the timing and success of new product and service introductions by us and the transition from legacy products;
the timing and success of new product and service introductions by our competitors or any other change in the competitive landscape of our market;
the mix of products sold in a quarter;
the continued market acceptance of, and the growth of the market for, wearable devices, and evolution of this market into smartwatches and other form
factors;
pricing pressure as a result of competition or otherwise;
delays or disruptions in our supply, manufacturing, or distribution chain;
errors in our forecasting of the demand for our products, which could lead to lower revenue or increased costs, or both;
seasonal buying patterns of consumers;
increases in levels of channel inventory resulting from sales to our retailers and distributors in anticipation of future demand;
increases in and timing of sales and marketing and other operating expenses that we may incur to grow and expand our operations and to remain
competitive;
impact of sales and marketing efforts and promotions by competitors, which are difficult to predict;
insolvency, credit, or other difficulties faced by our distributors and retailers, affecting their ability to purchase or pay for our products;

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insolvency, credit, or other difficulties confronting our suppliers, contract manufacturers, or logistics providers leading to disruptions in our supply or
distribution chain;
levels of product returns, stock rotation, and price protection rights;
levels of warranty claims or estimated costs of warranty claims;
adverse litigation judgments, settlements, or other litigation-related costs;
changes in the legislative or regulatory environment, such as with respect to privacy, information security, health and wellness devices, consumer product
safety, advertising, and taxes;
product recalls, regulatory proceedings, or other adverse publicity about our products;
fluctuations in foreign exchange rates;
costs related to the acquisition of businesses, talent, technologies, or intellectual property, including potentially significant amortization costs and possible
write-downs; and
general economic conditions in either domestic or international markets.

Any one of the factors above or the cumulative effect of some of the factors above may result in significant fluctuations in our operating results.

The variability and unpredictability of our quarterly operating results or other operating metrics could result in our failure to meet our expectations, those of
any analysts that publish financial coverage of us, or investors with respect to revenue or other operating results for a particular period. If we fail to meet or exceed
such  expectations  for  these  or  any  other  reasons,  the  market  price  of  our  Class  A  common  stock  could  fall  substantially,  and  we  could  face  costly  lawsuits,
including securities class action suits.

We may not be able to achieve revenue growth or profitability in the future.

Our historical revenue growth should not be considered indicative of our future performance. Our revenue has declined in recent periods and we expect our
revenue growth to be slower than in the past or decline in future periods due to a number of factors, which may include slowing demand for our products and
services, increasing competition, a decrease in the growth of our overall market, our failure, for any reason, to capitalize on growth opportunities, or the maturation
of our business.

From 2014 to 2016, our annual revenue grew rapidly from $745.4 million to $2.2 billion. However, in recent quarters, our revenue growth has declined, and
our historical growth should not be considered as indicative of our future performance. Although our annual revenue in 2016 was up 17% compared to 2015, our
revenue in 2017 declined 26% on a year-over-year basis. In future periods, we could again experience a decline in revenue, or revenue could grow more slowly
than we expect, which could have a material negative effect on our future operating results.

Because  we  have  only  a  limited  history  operating  our  business  at  its  current  scale,  it  is  difficult  to  evaluate  our  current  business  and  future  prospects,
including our ability to plan for and model future growth. Our limited operating experience at this scale, combined with the rapidly evolving nature of the market in
which  we  sell  our  products  and  services,  substantial  uncertainty  concerning  how  these  markets  may  develop,  and  other  economic  factors  beyond  our  control,
reduces our ability to accurately forecast quarterly or annual revenue. As such, any predictions about our future revenue and expenses may not be as accurate as
they would be if we had a longer operating history or operated in a more developed and predictable market. Failure to manage our future growth effectively could
have an adverse effect on our business, which, in turn, could have an adverse impact on our operating results and financial condition.

In addition, we have not consistently achieved profitability on a quarterly or annual basis. For example, we recorded a net loss of $277.2 million in 2017.

Lower levels of revenue and higher levels of operating expenses may result in limited profitability or losses.

If we fail to manage our operating expenses effectively, our financial performance may be negatively impacted.

Our success also depends on our ability to manage our operating expenses effectively. Our employee headcount and the scope and complexity of our business
have increased significantly during recent years and we had 1,749 employees as of December 31, 2017. We have incurred significant net losses of $277.2 million
and $102.8 million in 2017 and 2016, respectively. In January 2017, we announced cost-efficiency measures that included realigning sales and marketing spend
and improved optimization of research and development investments. This reorganization impacted approximately 110 employees, or 6% of our global workforce.
Although we plan to seek to operate efficiently and to manage our costs effectively, we may not realize the cost savings expected from these actions.

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In addition, we are also investing  in areas we believe  will grow revenue and our operating  expenses might increase  as a result of these investments.  The
development  of  our  products  and  services  is  complex  and  costly,  and  we  typically  have  several  products  and  services  in  development  at  the  same  time.  Our
research and development efforts may require us to incur substantial expenses to support the development of our next generation devices and other new products
and services. Our research and development expenses were $343.0 million , $320.2 million and $150.0 million, for 2017, 2016 and 2015, respectively.

We  could  also  be  required  to  continue  to  expand  our  sales  and  marketing,  product  development,  and  distribution  functions,  to  upgrade  our  management
information systems and other processes and technology, and to obtain more space for our expanding workforce. This expansion could increase the strain on our
resources, and we could experience serious operating difficulties, including difficulties in hiring, training, and managing an increasing number of employees.

In the future, we may again need to strategically realign our resources, adjust our product line and/or enact price reductions in order to stimulate demand, and
implement additional restructurings and workforce reductions. Any such actions may result in the recording of special charges including inventory-related write-
offs, workforce reductions, or other restructuring costs. Additionally, our estimates with respect to the useful life or ultimate recoverability of our assets, including
purchased intangible assets and tooling, could also change and result in impairment charges.

If we are unable to operate efficiently and manage our costs, we may continue to incur significant losses in the future and may not be able to achieve or

maintain profitability.

Because some of the key components in our products come from a limited number or single source of supply, we are susceptible to supply shortages, long lead
times for components, and supply changes, any of which could disrupt our supply chain.

Some  of  the  key  components  used  to  manufacture  our  products  come  from  a  limited  or  single  source  of  supply.  Our  contract  manufacturers  generally
purchase these components on our behalf, subject to certain approved supplier lists. We are subject to the risk of shortages and long lead times in the supply of
these  components  and  the  risk  that  our  suppliers  discontinue  or  modify  components  used  in  our  products.  In  addition,  the  lead  times  associated  with  certain
components  are  lengthy  and  preclude  rapid  changes  in  quantities  and  delivery  schedules.  We  have  in  the  past  experienced  and  may  in  the  future  experience
component shortages, and the predictability of the availability of these components may be limited. While component shortages have historically been immaterial,
they  could  be  material  in  the  future.  In  the  event  of  a  component  shortage  or  supply  interruption  from  suppliers  of  these  components,  we  may  not  be  able  to
develop  suitable  alternate  sources  in  a  timely  manner.  In  addition,  some  of  our  suppliers,  contract  manufacturers,  and  logistics  providers  may  have  more
established  relationships  with  our  competitors,  and  as  a  result  of  such  relationships,  such  suppliers  may  choose  to  limit  or  terminate  their  relationship  with  us.
Developing  suitable  alternate  sources  of  supply  for  these  components  may  be  time-consuming,  difficult,  and  costly  and  we  may  not  be  able  to  source  these
components on terms that are acceptable to us, or at all, which may adversely affect our ability to meet our requirements or to fill our orders in a timely or cost-
effective manner. Any interruption or delay in the supply of any of these parts or components, or the inability to obtain these parts or components from alternate
sources at acceptable prices and within a reasonable amount of time, would harm our ability to meet our scheduled product deliveries to our customers and users.
This  could  harm  our  relationships  with  our  channel  partners  and  users  and  could  cause  delays  in  shipment  of  our  products  and  adversely  affect  our  operating
results. In addition, increased component costs could result in lower gross margins. If we are unable to buy these components in quantities sufficient to meet our
requirements on a timely basis, we will not be able to deliver products and services to our customers and users, which could adversely impact our revenue, gross
margins, and operating results.

Our future success depends on the continuing efforts of our key employees, including our founders, James Park and Eric N. Friedman, and on our ability to
attract and retain highly skilled personnel and senior management.

Our future success depends, in part, on our ability to continue to attract and retain highly skilled personnel. In particular, we are highly dependent on the
contributions of our co-founders, James Park and Eric N. Friedman, as well as other members of our management team. The loss of any key personnel could make
it more difficult to manage our operations and research and development activities, reduce our employee retention and revenue, and impair our ability to compete.
Although  we  have  generally  entered  into  employment  offer  letters  with  our  key  personnel,  these  agreements  have  no  specific  duration  and  provide  for  at-will
employment, which means they may terminate their employment relationship with us at any time.

Competition for highly skilled personnel is often intense, especially in the San Francisco Bay Area where we are located, and we may incur significant costs
to attract them. We may not be successful in attracting, integrating, or retaining qualified personnel to fulfill our current or future needs. We have, from time to
time, experienced, and we expect to continue to experience, difficulty in hiring and retaining highly skilled employees with appropriate qualifications. In addition,
job candidates and existing employees often consider the value of the equity awards they receive in connection with their employment. Fluctuations in the price of
our Class A common stock may make it more difficult or costly to use equity awards to motivate, incentivize and retain our employees. The significant decline in
the price of our Class A common stock in recent periods may adversely affect our ability

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to attract or retain highly skilled employees. Furthermore, there can be no assurances that the number of shares reserved for issuance under our equity incentive
plans will be sufficient to grant equity awards adequate to recruit new employees and to compensate existing employees. If we fail to attract new personnel or fail
to retain and motivate our current personnel, our business and future growth prospects could be severely harmed.

We spend significant amounts on advertising and other marketing campaigns to acquire new users, which may not be successful or cost effective.

We  spend  significant  amounts  on  advertising  and  other  marketing  campaigns,  such  as  television,  cinema,  print  advertising,  and  social  media,  as  well  as
promotional activities, to acquire new users and we expect to continue to spend significant amounts marketing our products and services to acquire new users and
increase awareness of our products and services. In 2017 and 2016, advertising expenses, excluding co-op advertising and rebates which are recorded as contra-
revenue,  were  $226.3 million  and  $316.8 million,  respectively,  representing  approximately  14%  and  15%  of  our  revenue,  respectively.  Co-op advertising  costs
were  $45.0  million,  $52.9  million,  and  $38.3  million  for  2017,  2016  and  2015,  respectively.  A  significant  portion  of  our  advertising  and  marketing  spend  is
typically incurred in the fourth quarter as part of our holiday promotions, as well as when new products are released. While we seek to structure our advertising
campaigns in the manner that we believe is most likely to encourage people to buy our products and services, we may fail to identify advertising opportunities that
satisfy our anticipated return on advertising spend as we scale our investments in marketing, accurately predict user acquisition, or fully understand or estimate the
conditions and behaviors that drive user behavior. Particularly during the holiday season, there is significant competition for holiday spending; if competitors or
other products offer more compelling promotions or products, we may not realize our expected sales or recover our advertising and promotional spend. If new
products do not meet customer expectations, we may not recover our advertising and promotional spend for new product introductions. If for any reason any of our
advertising campaigns prove less successful than anticipated  in attracting  new users, we may not be able to recover our advertising spend, and our rate of user
acquisition may fail to meet market expectations, either of which could have an adverse effect on our business. There can be no assurance that our advertising and
other marketing efforts will result in increased sales of our products and services.

Our current and future products and services may experience quality problems from time to time that can result in adverse publicity, product recalls, litigation,
regulatory proceedings, and warranty claims resulting in significant direct or indirect costs, decreased revenue and operating margin, and harm to our brand.

We sell complex products and services that could contain design and manufacturing defects in their materials, hardware, and firmware. These defects could
include defective materials or components, or “bugs,” that can unexpectedly interfere with the products’ intended operations or cause injuries to users or property.
Although we extensively  and rigorously  test  new and enhanced  products  and services  before  their  release,  there  can be no assurance  we will be able  to detect,
prevent, or fix all defects. For example, our products may fail to provide accurate measurements and data to users under all circumstances, or there may be reports
or claims of inaccurate measurements under certain circumstances.

Failure to detect, prevent, or fix defects, or an increase in defects could result in a variety of consequences including a greater number of returns of products
than  expected  from  users  and  retailers,  increases  in  warranty  costs,  regulatory  proceedings,  product  recalls,  and  litigation,  which  could  harm  our  revenue  and
operating results. For example, in 2016, we experienced an increase in actual and estimated warranty claims of $108.5 million as compared to 2015, which caused
a 4% decline in gross margin in 2016 as compared to 2015. We generally provide a 45-day right of return for purchases through Fitbit.com and a 12-month limited
warranty on all of our products, though warranty duration and scope may vary by jurisdiction in compliance with applicable local law. The occurrence of real or
perceived quality problems or material defects in our current and future products could expose us to warranty claims in excess of our current reserves. Moreover,
we may offer stock rotation rights and price protection to our distributors. If we experience greater returns from retailers or users, or greater warranty claims, in
excess of our reserves, our business, revenue, gross margin, and operating results could be harmed. In addition, any negative publicity or lawsuits filed against us
related to the perceived quality and safety of our products could also affect our brand and decrease demand for our products and services, adversely affecting our
operating results and financial condition.

We  rely  on  a  limited  number  of  suppliers,  contract  manufacturers,  and  logistics  providers,  and  each  of  our  products  is  manufactured  by  a  single  contract
manufacturer.

We rely on a limited number of suppliers, contract manufacturers, and logistics providers. In particular, we use contract manufacturers located in Asia, and
each of our products is manufactured by a single contract manufacturer. Our reliance on a sole contract manufacturer for each of our products increases the risk
that in the event of an interruption from any one of these contract manufacturers, including, without limitation, due to a natural catastrophe or labor dispute, we
may not be able to develop an

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alternate source without incurring material additional costs and substantial delays. Accordingly, an interruption from any key supplier, contract manufacturer, or
logistics provider could adversely impact our revenue, gross margins, and operating results.

If  we  experience  a  significant  increase  in  demand,  or  if  we  need  to  replace  an  existing  supplier,  contract  manufacturer,  or  logistics  provider,  we  may  be
unable  to supplement  or  replace  such supply,  contract  manufacturing,  or logistics  capacity  on terms  that  are  acceptable  to us, which  may  adversely  impact  our
ability to deliver our products to customers in a timely manner. For example, for certain of our products, it may take a significant amount of time to onboard a
contract manufacturer that has the capability and resources to build the product to our specifications in sufficient volume. Identifying suitable suppliers, contract
manufacturers, and logistics providers is an extensive process that requires us to become satisfied with their quality control, technical capabilities, responsiveness
and  service,  financial  stability,  regulatory  compliance,  and  labor  and  other  ethical  practices.  In  addition,  our  contract  manufacturers  often  make  significant
investments to build capacity based upon our forecasted production. If we experience a significant decrease in demand as compared to our forecast, our contract
manufacturers may seek to renegotiate the terms of their commitments or choose to limit or terminate their relationship with us. Accordingly, a loss of any key
supplier, contract manufacturer, or logistics provider could adversely impact our revenue, gross margins, and operating results.

We  have  limited  control  over  our  suppliers,  contract  manufacturers,  and  logistics  providers,  which  subjects  us  to  significant  risks,  including  the  potential
inability to obtain or produce quality products on a timely basis or in sufficient quantity.

We have limited control over our suppliers, contract manufacturers, and logistics providers, including aspects of their specific manufacturing processes and

their labor, environmental, or other practices, which subjects us to significant risks, including the following:

inability to satisfy demand for our products;
reduced control over delivery timing and product reliability;
reduced ability to oversee the manufacturing process and components used in our products;
reduced ability to monitor compliance with our product manufacturing specifications;
price increases;
insolvency, credit problems, or other financial difficulties confronting our suppliers, contract manufacturers, or logistic providers;
difficulties in establishing additional or alternative contract manufacturing relationships if we experience difficulties with our existing suppliers, contract
manufacturers or logistic providers;
shortages of materials or components;

•
• misappropriation of our intellectual property;
•
•

suppliers, contract manufacturers, and logistics providers may choose to limit or terminate their relationship with us;
exposure  to  natural  catastrophes,  political  unrest,  terrorism,  labor  disputes,  and  economic  instability  resulting  in  the  disruption  of  trade  from  foreign
countries in which our products are manufactured;
changes in local economic conditions in countries where our suppliers, contract manufacturers, or logistics providers are located;
the imposition of new laws and regulations, including  those relating to labor conditions, quality and safety standards, imports, duties, taxes, and other
charges on imports, as well as trade restrictions and restrictions on currency exchange or the transfer of funds; and
insufficient warranties and indemnities on components supplied to our contract manufacturers.

•
•
•
•
•
•
•

•
•

•

If there are defects in the manufacture of our products, we may face negative publicity, government investigations, and litigation, and we may not be fully

compensated by our contract manufacturers for any financial or other liability that we suffer as a result.

We are, and may in the future, be subject to claims and lawsuits alleging that our products fail to provide accurate measurements and data to our users.

Our  products  and  services  are  used  to  track  and  display  various  information  about  users’  activities,  such  as  daily  steps  taken,  calories  burned,  distance
traveled, floors climbed, active minutes, sleep duration and quality, and heart rate and GPS-based information such as speed, distance, and exercise routes. We
anticipate new features and functionality in the future, as well. From time to time, there have been reports and claims made against us alleging that our products do
not provide accurate measurements and data to users, including claims asserting that certain features of our products do not operate as advertised. Such reports and
claims have resulted in negative publicity, and, in some cases, have required us to expend time and resources to defend litigation. For example, in the first quarter
of 2016, class action lawsuits were filed against us based upon claims that the PurePulse heart rate tracking technology in the Fitbit Charge HR and Fitbit Surge do
not consistently and accurately record users’ heart rates. If our products fail to provide accurate measurements and data to users, or if there are reports or claims of
inaccurate measurements,

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claims of false advertisement, or claims of inaccuracy regarding the overall health benefits of our products and services in the future, we may become the subject of
negative publicity, litigation, including class action litigation, regulatory proceedings, and warranty claims, and our brand, operating results, and business could be
harmed.

Our operating margins have declined and may continue to decline as a result of decreased revenues, increasing product costs and operating expenses.

Our business is subject to significant pressure on pricing and costs caused by many factors, including intense competition, new product introductions, the
cost of components used in our products, labor costs, constrained sourcing capacity, inflationary pressure, pressure from users to reduce the prices we charge for
our products and services, warranty claims, and changes in consumer demand. Costs for the components used in the manufacture of our products are affected by,
among other things, energy prices, consumer demand, fluctuations in commodity prices and currency, and other factors that are generally unpredictable and beyond
our control. Any change to pricing and costs could have an adverse effect on, among other things, our average selling price, the cost of our products, gross margins,
operating  results,  financial  condition,  and  cash  flows.  Moreover,  if  we  are  unable  to  offset  any  decreases  in  our  average  selling  price  by  increasing  our  sales
volumes or by adjusting our product mix, our operating results and financial condition may be harmed.

A substantial portion of our expenses are personnel related and include salaries, stock-based compensation and benefits, which are not seasonal in nature.
Accordingly, in the event of revenue shortfalls, we are generally unable to mitigate a negative impact on operating margins in the short term. To the extent such
revenue shortfalls recur in future periods, our operating results would be harmed.

Any insolvency, credit problems, or other financial difficulties impacting our retailers and distributors could expose us to financial risk.

Some of our retailers and distributors have experienced and may continue to experience financial difficulties. Insolvency, credit challenges, or other financial
difficulties may impact our retailers and distributors and could expose us to significant financial risk. In addition, if the credit capacity of any retailer or distributor
declines  due  to  deterioration  in  their  financial  condition  or  increases  in  their  outstanding  payable  balance  to  us, we  may  be  subject  to  additional  financial  risk.
Financial difficulties of our retailers and distributors could impede their effectiveness and also expose us to risks if they are unable to pay for the products they
purchase from us. For example, Wynit Distribution, LLC, or Wynit, historically our largest customer, filed for bankruptcy protection in September 2017, which
caused  us  to  incur  $7.6  million  in  net  bad  debt  expenses  and  $1.4  million  in  net  cost  of  revenues  in  2017.  Credit  and  financial  difficulties  of  our  retailers  and
distributors may also lead to a reduction in sales, price reductions, increased returns of our products, and adverse effects on our brand and operating results. We
maintain credit insurance for the majority of our customer balances, perform ongoing credit evaluations of our customers, and maintain allowances for potential
credit losses on customers’ accounts when deemed necessary. Credit and financial difficulties may lead to an increase in our credit insurance premiums and make it
more difficult or impossible to obtain sufficient coverage, which could increase our exposure and result in increased bad debt expense or additional write-offs. We
also may not have sufficient insurance coverage to cover losses resulting from the credit and financial difficulties of our retailers and distributors. Any reduction in
sales by our current retailers or distributors, loss of large retailers or distributors, or decrease in revenue from our retailers or distributors could adversely affect our
revenue, operating results, and financial condition.

We depend on retailers and distributors to sell and market our products, and our failure to maintain and further develop our sales channels could harm our
business.

We primarily sell our products through retailers and distributors and depend on these third-parties to sell and market our products to consumers. Any changes
to our current mix of retailers and distributors could adversely affect our gross margin and could negatively affect both our brand image and our reputation. Our
sales  depend,  in  part,  on  retailers  adequately  displaying  our  products,  including  providing  attractive  space  and  point  of  purchase  displays  in  their  stores,  and
training  their  sales  personnel  to  sell  our  products.  Our  retailers  also  often  offer  products  and  services  of  our  competitors  in  their  stores.  If  our  retailers  and
distributors are not successful in selling our products or overestimate demand for our products or promote competing products and services more effectively than
our products and services, our revenue would decrease and our gross margins could decline due to increased product returns or price protection claims. In addition,
our success in expanding and entering into new markets internationally will depend on our ability to establish relationships with new retailers and distributors. We
also sell and will need to continue to expand our sales through online retailers, such as Amazon.com, and through our direct channel, Fitbit.com, as consumers
increasingly make purchases online. If we do not maintain our relationship with existing retailers and distributors or develop relationships with new retailers and
distributors our ability to sell our products and services could be adversely affected and our business may be harmed.

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In 2016 and 2017, our five largest retailers and distributors accounted for approximately 52% and 43% of our revenue, respectively. Of these retailers and
distributors,  Wynit,  Amazon.com  and  Best  Buy  accounted  for  approximately  14%,  14%  and  10%  of  our  revenue  for  2016,  respectively,  and  Amazon.com
accounted  for  approximately  13% of  our  revenue  for  2017.  No  other  retailers  or  distributors  accounted  for  10%  or  more  of  our  revenue  during  these  periods.
Accordingly, the loss of a small number of our large retailers and distributors, or the reduction in business with one or more of these retailers and distributors,
could have a significant adverse impact on our operating results. For example, Wynit, historically our largest customer at the time, filed for bankruptcy protection
in September 2017. While we have agreements with these large retailers and distributors, these agreements do not require them to purchase any meaningful amount
of our products.

Consolidation of retailers or concentration of retail market share among a few retailers may increase and concentrate our credit risk and impair our ability to
sell products.

The electronics retail and sporting goods markets in some countries, including the United States, our largest market, are dominated by a few large retailers
with  many  stores.  These  retailers  have  in  the  past  increased  their  market  share  and  may  continue  to  do  so  in  the  future  by  expanding  through  acquisitions  and
construction  of  additional  stores.  This  can  further  concentrate  our  credit  risk  to  a  relatively  small  number  of  retailers,  and,  if  any  of  these  retailers  were  to
experience  credit  or liquidity  issues, it would increase  the risk that our receivables  from these customers  may not be paid. In addition, increasing  market  share
concentration among one or a few retailers in a particular country or region increases the risk that if any one of them substantially reduces their purchases of our
wearable devices, we may be unable to find a sufficient number of other retail outlets for our products to sustain the same level of sales. These situations also may
result in pricing pressure to us. Any reduction in sales by our retailers would adversely affect our revenue, operating results, and financial condition.

Our success depends on our ability to maintain our brand. If events occur that damage our brand, our business and financial results may be harmed.

Our success depends on our ability to maintain the value of the “Fitbit” brand. The “Fitbit” name is integral to our business as well as to the implementation
of  our  strategies  for  expanding  our  business.  Maintaining,  promoting,  and  positioning  our  brand  will  depend  largely  on  the  success  of  our  marketing  and
merchandising efforts, our ability to provide consistent, high quality products and services, and our ability to successfully secure, maintain, and defend our rights to
use the “Fitbit” mark and other trademarks important to our brand. Our brand could be harmed if we fail to achieve these objectives or if our public image or brand
were to be tarnished by negative publicity. For example, there has been media coverage of some of the users of our products reporting skin irritation, as well as
personal  injury  lawsuits  filed  against  us  relating  to  the  Fitbit  Zip,  Fitbit  One,  Fitbit  Flex,  Fitbit  Charge,  Fitbit  Charge  HR,  and  Fitbit  Surge  products.  We  also
believe that our reputation and brand may be harmed if we fail to maintain a consistently high level of customer service. In addition, we believe the popularity of
the “Fitbit” brand makes it a target for counterfeiting or imitation, with third parties attempting to sell counterfeit products that attempt to replicate our products.

In  addition,  our  products  may  be  diverted  from  our  authorized  retailers  and  distributors  and  sold  on  the  “gray  market.”  Gray  market  products  result  in
shadow inventory that is not visible to us, thus making it difficult to forecast demand accurately. Also, when gray market products enter the market, we and our
channel  partners  compete  with  often  heavily  discounted  gray  market  products,  which  adversely  affects  demand  for  our  products  and  negatively  impacts  our
margins. In addition, our inability to control gray market activities could result in user satisfaction issues, which may have a negative impact on our brand. When
products are purchased outside our authorized retailers and distributors, there is a risk that our customers are buying substandard products, including products that
may have been altered, mishandled, or damaged, or used products represented as new.

Any  occurrence  of  counterfeiting,  imitation,  or  confusion  with  our  brand  could  adversely  affect  our  reputation,  place  negative  pricing  pressure  on  our
products, reduce sales of our products, and impair the value of our brand. Additionally, counterfeit and unauthorized grey market sales may result in secondary
warranty replacement and service costs. Maintaining, protecting, and enhancing our brand may require us to make substantial investments, and these investments
may not be successful. If we fail to successfully maintain, promote, and position our brand and protect our reputation or if we incur significant expenses in this
effort, our business, financial condition and operating results may be adversely affected.

Our  business  is  affected  by  seasonality  and  if  our  sales  fall  below  our  forecasts,  our  overall  financial  conditions  and  operating  results  could  be  adversely
affected.

Our revenue and operating results are affected by general seasonal spending trends associated with holidays. For example, our fourth quarter has typically
been  our  strongest  quarter  in  terms  of  revenue  and  operating  income,  reflecting  our  historical  strength  in  sales  during  the  holiday  season.  We  generated
approximately 35%, 26% and 38% of our full year revenue during the

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fourth quarters of 2017, 2016 and 2015, respectively. Accordingly, any shortfall in expected fourth quarter revenue would adversely affect our annual operating
results, as was the case in the fourth quarter of 2016. In addition, if we fail to accurately forecast consumer demand for the holiday season, we may experience
excess inventory levels or a shortage of products available for sale.

Furthermore, our growth rate in recent years may obscure the extent to which seasonality trends have affected our business and may continue to affect our
business. Accordingly, yearly or quarterly comparisons of our operating results may not be useful and our results in any particular period will not necessarily be
indicative of the results to be expected for any future period. Seasonality in our business can also be significantly impacted by introductions of new or enhanced
products and services, including the costs associated with such introductions.

We collect, store, process, and use personal information and other customer data, which subjects us to governmental regulation and other legal obligations
related to privacy, information security, and data protection, and any security breaches or our actual or perceived failure to comply with such legal obligations
could harm our business.

We collect, store, process, and use personal information and other user data, and we rely on third parties that are not directly under our control to do so. Our
users’ exercise and activity-related data and other personal information may include, among other information, names, addresses, phone numbers, email addresses,
payment account information, height, weight, and information such as heart rates, sleeping patterns, GPS-based location, and activity patterns.

Due to the volume of the personal information and data we manage and the nature of our products, the security features of our platform and information
systems  are  critical.  If our  security  measures,  some  of which we  manage  using third-party  solutions,  are  breached  or fail,  unauthorized  persons may be  able  to
obtain access to or acquire our users’ data. Furthermore, if third-party service providers that host user data on our behalf experience security breaches or violate
applicable  laws,  agreements,  or our  policies,  such  events  may  also put  our  users’  information  at  risk  and could  in  turn  have  an  adverse  effect  on our  business.
Additionally,  if  we  or  any  third-party,  including  third-party  applications,  with  which  our  users  choose  to  share  their  Fitbit  data  were  to  experience  a  breach  of
systems compromising our users’ personal data, our brand and reputation could be adversely affected, use of our products and services could decrease, and we
could be exposed to a risk of loss, litigation, and regulatory proceedings.

Depending on the nature of the information compromised, in the event of a data breach or other unauthorized access to or acquisition of our user data, we
may  also  have  obligations  to  notify  users  about  the  incident  and  we  may  need  to  provide  some  form  of  remedy,  such  as  a  subscription  to  a  credit  monitoring
service, for the individuals affected by the incident. A growing number of legislative and regulatory bodies have adopted consumer notification requirements in the
event of unauthorized access to or acquisition of certain types of personal data. Such breach notification laws continue to evolve and may be inconsistent from one
jurisdiction to another. Complying with these obligations could cause us to incur substantial costs and could increase negative publicity surrounding any incident
that compromises user data. Our users may also inadvertently disclose or lose control of their passwords, creating the perception that our systems are not secure
against third-party access. While we maintain insurance coverage that, subject to policy terms and conditions and a significant self-insured retention, is designed to
address  certain  aspects  of  cyber  risks,  such  insurance  coverage  may  be  insufficient  to  cover  all  losses  or  all  types  of  claims  that  may  arise  in  the  event  we
experience a security breach. In addition, any such security breaches may result in negative publicity, adversely affect our brand, decrease demand for our products
and services, and adversely affect our operating results and financial condition.

Cybersecurity risks could adversely affect our business and disrupt our operations.

The threats to network and data security are increasingly diverse and sophisticated. Despite our efforts and processes to prevent breaches, our devices, as
well as our servers, computer systems, and those of third parties that we use in our operations are vulnerable to cybersecurity risks, including cyber-attacks such as
viruses  and  worms,  phishing  attacks,  denial-of-service  attacks,  physical  or  electronic  break-ins,  employee  theft  or  misuse,  and  similar  disruptions  from
unauthorized tampering with our servers and computer systems or those of third parties that we use in our operations, which could lead to interruptions, delays, loss
of  critical  data,  unauthorized  access  to  user  data,  and  loss  of  consumer  confidence.  In  addition,  we  may  be  the  target  of  email  scams  that  attempt  to  acquire
personal information or company assets. Despite our efforts to create  security barriers  to such threats, we may not be able to entirely  mitigate  these risks. Any
cyber-attack  that  attempts  to  obtain  our  or  our  users’  data  and  assets,  disrupt  our  service,  or  otherwise  access  our  systems,  or  those  of  third  parties  we  use,  if
successful,  could adversely  affect our business, operating results,  and financial condition, be expensive  to remedy, and damage our reputation.  In addition, any
such  breaches  may  result  in  negative  publicity,  adversely  affect  our  brand,  decrease  demand  for  our  products  and  services,  and  adversely  affect  our  operating
results and financial condition.

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Any material disruption of our information technology systems, or those of third-party partners and data center providers could materially damage user and
business partner relationships, and subject us to significant reputational, financial, legal, and operational consequences.

We depend on our information technology systems, as well as those of third parties, to develop new products and services, operate our website, host and
manage our services, store data, process transactions, respond to user inquiries, and manage inventory and our supply chain. Any material disruption or slowdown
of  our  systems  or  those  of  third  parties  whom  we  depend  upon,  including  a  disruption  or  slowdown  caused  by  our  failure  to  successfully  manage  significant
increases in user volume or successfully upgrade our or their systems, system failures, or other causes, could cause outages or delays in our services, which could
harm  our  brand  and  adversely  affect  our  operating  results.  In  addition,  such  disruption  could  cause  information,  including  data  related  to  orders,  to  be  lost  or
delayed which could---especially if the disruption or slowdown occurred during the holiday season---result in delays in the delivery of products to stores and users
or lost sales, which could reduce demand for our merchandise, harm our brand and reputation, and cause our revenue to decline. Problems with our third-party data
center service providers, the telecommunications network providers with whom they contract, or with the systems by which telecommunications providers allocate
capacity among their users could adversely affect the experience of our users. Our third-party data center service providers could decide to close their facilities or
cease  providing  us  services  without  adequate  notice.  Any  changes  in  third-party  service  levels  at  our  data  centers  or  any  errors,  defects,  disruptions,  or  other
performance problems with our platform could harm our brand and may damage the data of our users. If changes in technology cause our information systems, or
those of third parties whom we depend upon, to become obsolete, or if our or their information systems are inadequate to handle our growth, we could lose users
and our business and operating results could be adversely affected.

Our failure or inability to protect our intellectual property rights, or claims by others that we are infringing upon or unlawfully using their intellectual property
could  diminish  the  value  of  our  brand  and  weaken  our  competitive  position,  and  adversely  affect  our  business,  financial  condition,  operating  results,  and
prospects.

We  currently  rely  on  a  combination  of  patent,  copyright,  trademark,  trade  secret,  and  unfair  competition  laws,  as  well  as  confidentiality  agreements  and
procedures and licensing arrangements, to establish and protect our intellectual property rights. We have devoted substantial resources to the development of our
proprietary  technologies  and  related  processes.  In  order  to  protect  our  proprietary  technologies  and  processes,  we  rely  in  part  on  trade  secret  laws  and
confidentiality agreements with our employees, licensees, independent contractors, commercial partners, and other advisors. These agreements may not effectively
prevent disclosure of confidential information and may not provide an adequate remedy in the event of unauthorized disclosure of confidential information. We
cannot be certain that the steps taken by us to protect our intellectual property rights will be adequate to prevent infringement of such rights by others, including
imitation  of  our  products  and  misappropriation  of  our  brand.  Additionally,  the  process  of  obtaining  patent  or  trademark  protection  is  expensive  and  time-
consuming, and we may not be able to file, apply for or prosecute all necessary or desirable patent applications or trademark applications at a reasonable cost or in
a timely manner. We have obtained and applied for U.S. and foreign trademark registrations for the “Fitbit” brand and a variety of our product names, and will
continue  to  evaluate  the  registration  of  additional  trademarks  as  appropriate.  However,  we  cannot  guarantee  that  any  of  our  pending  trademark  or  patent
applications will be approved by the applicable governmental authorities. Moreover, intellectual property protection may be unavailable or limited in some foreign
countries where laws or law enforcement practices may not protect our intellectual property rights as fully as in the United States, and it may be more difficult for
us to successfully challenge the use of our intellectual property rights by other parties in these countries. Costly and time-consuming litigation could be necessary
to  enforce  and  determine  the  scope  of  our  proprietary  rights,  and  our  failure  or  inability  to  obtain  or  maintain  trade  secret  protection  or  otherwise  protect  our
proprietary rights could adversely affect our business.

We are and may in the future be subject to patent infringement and trademark claims and lawsuits in various jurisdictions, and we cannot be certain that our
products or activities do not violate the patents, trademarks, or other intellectual property rights of third-party claimants. Companies in the technology industry and
other  patent,  copyright,  and  trademark  holders  seeking  to  profit  from  royalties  in  connection  with  grants  of  licenses  own  large  numbers  of  patents,  copyrights,
trademarks,  domain  names,  and  trade  secrets  and  frequently  commence  litigation  based  on  allegations  of  infringement,  misappropriation,  or  other  violations  of
intellectual property or other rights. Companies and individuals may also be subject to criminal prosecution for trade secret theft under 18 U.S.C. section 1832. As
we face increasing competition, the intellectual property rights claims against us and asserted by us have grown and will likely continue to grow. For example, we
had  been  involved  in  litigation  with  Jawbone  and  under  a  related  federal  criminal  investigation  concerning  alleged  theft  of  Jawbone’s  trade  secrets,  which  is
described in Note 7, “Commitments and Contingencies” in the notes to our consolidated financial statements.

We intend to vigorously defend and prosecute these litigation matters and, based on our review, we believe we have valid defenses and claims with respect to
each  of  these  matters.  However,  litigation  is  inherently  uncertain,  and  any  judgment  or  injunctive  relief  entered  against  us  or  any  adverse  settlement  could
materially and adversely impact our business, financial condition, operating

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results, and prospects. In addition, litigation can involve significant management time and attention and can be expensive, regardless of outcome. During the course
of these litigation matters, there may be announcements of the results of hearings and motions, and other interim developments related to the litigation matters. If
securities analysts or investors regard these announcements as negative, the market price of our Class A common stock may decline.

Further, from time to time, we have received  and may continue to receive  letters  from third parties  alleging  that we are infringing  upon their intellectual
property rights. Successful infringement claims against us could result in significant monetary liability, prevent us from selling some of our products and services,
or require us to change our branding. In addition, resolution of claims may require us to redesign our products, license rights from third parties at a significant
expense,  or  cease  using those  rights  altogether.  We  have  also  in  the  past  and  may  in  the future  bring  claims  against  third  parties  for  infringing  our  intellectual
property rights. Costs of supporting such litigation and disputes may be considerable, and there can be no assurances that a favorable outcome will be obtained.
Patent infringement, trademark infringement, trade secret misappropriation, and other intellectual property claims and proceedings brought against us or brought
by us, whether successful or not, could require significant attention of our management and resources and have in the past and could further result in substantial
costs, harm to our brand, and have an adverse effect on our business.

We may experience difficulties implementing and maintaining our new enterprise resource planning system.

We  recently  implemented  a  new  enterprise  resource  planning,  or  ERP,  system.  ERP  implementations  are  complex  and  time-consuming,  and  involve
substantial expenditures on maintenance activities and software. The ERP system is critical to our ability to provide important information to our management,
obtain and deliver products, provide services and customer support, send invoices and track payments, fulfill contractual obligations, accurately maintain books
and  records,  provide  accurate,  timely  and  reliable  reports  on  our  financial  and  operating  results  or  otherwise  operate  our  business.  ERP  implementations  also
require transformation of business and financial processes in order to reap the benefits of the ERP system; any such transformation involves risks inherent in the
conversion to a new computer system, including loss of information and potential disruption to our normal operations. We may discover deficiencies in our design
or implementation or maintenance of the new ERP system that could adversely affect our ability to process orders, ship products, provide services and customer
support, send invoices and track payments, fulfill contractual obligations, accurately maintain books and records, provide accurate, timely and reliable reports on
our financial and operating results, or otherwise operate our business. Additionally, if the system does not operate as intended, the effectiveness of our internal
control over financial reporting could be adversely affected or our ability to assess it adequately could be delayed.

The market for wearable devices is still in the early stages of growth and if it does not continue to grow, grows more slowly than we expect, or fails to grow as
large as we expect, our business and operating results would be harmed.

The  market  for  wearable  devices,  which  includes  both  connected  health  and  fitness  trackers  and  smartwatches,  is  still  evolving  and  unproven  and  it  is
uncertain  whether  wearable  devices  will  sustain  high  levels  of  demand  and  wide  market  acceptance.  Our  success  will  depend  to  a  substantial  extent  on  the
willingness  of  people  to  widely  adopt  these  products  and  services.  In  part,  adoption  of  our  products  and  services  will  depend  on  the  increasing  prevalence  of
wearable devices driven by the introduction of new form factors, software services and other offerings. However, it is not certain whether consumers will respond
to these new form factors, and if our offerings fail to satisfy consumer preferences, our business may be adversely affected.

Furthermore, some individuals may be reluctant or unwilling to use wearable devices because they have concerns regarding the risks associated with data
privacy and security.  If the wider public does not perceive  the benefits  of our wearable  devices  or chooses not to adopt them  as a result of concerns regarding
privacy or data security or for other reasons, then the market for these products and services may not further develop, it may develop more slowly than we expect,
or it may not achieve the growth potential we expect it to, any of which would adversely affect our operating results. The development and growth of this market
may not be sustained.

Our active user metric only represents the potential size and growth of our engaged user community and our activation metric is only an indicator of potential
repeat behavior. Therefore, you should not rely on the active user metrics as an indicator of future retention of users, continual user engagement, or future
payments by users or the activation metric as a guarantee of repeat purchasing behavior.

Our  active  user  metric  tracks  the  number  of  users  who  have  an  active  Fitbit  Coach  subscription,  who  paired  a  wearable  device  or  Aria  scale  to  a  Fitbit

account, or who logged at least 100 steps or took a weight measurement within three months of the measurement date.

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The active user only represents the potential size or growth of our engaged user community. The active user metric does not provide information regarding
how frequently users engage with our platform or pay us, the extent to which inactive users are offset by new active users or how long a user remains active or
continues to pay us. This metric is also not intended to be an indicator of device sales in any period and does not have a direct effect on our revenue and operating
results since substantially all of our revenue to date has been derived from sales of our wearable devices. Therefore, you should not rely on our active user metric
as an indicator of the level of retention of individual users in the future, continual user engagement or future payments by users.

Our activation metric tracks the first instance of a Fitbit device (excluding Aria, Aria 2, Flyer and other accessories) pairing to a user account during the three

months ending on the date of measurement, as well as Fitbit users who previously activated another Fitbit device to his or her account.

The activation metric is only an indicator of potential repeat behavior. Actual repeat purchase behavior may depend on a number of factors, including but not
limited  to  our  ability  to  anticipate  and  satisfy  consumer  preferences.  Therefore,  you  should  not  rely  on  our  activation  metric  as  a  guarantee  of  repeat  purchase
behavior.  

See the sections titled, “Management’s Discussion and Analysis of Financial Condition and Results of Operations-Key Business Metrics-Active Users,” and
“Management’s Discussion and Analysis of Financial Condition and Results of Operations-Key Business Metrics-Activations” in this Annual Report on Form 10-
K for additional information.

Our failure to comply with U.S. and foreign laws related to privacy, data security, and data protection, such as European data protection law, which requires
an adequate legal mechanism for the transfer of personal data outside of Europe, could adversely affect our financial condition, operating results, and our
brand.

We are or may become subject to a variety of laws and regulations in the United States and abroad regarding privacy, data protection, and data security.
These  laws  and  regulations  are  continuously  evolving  and  developing.  The  scope  and  interpretation  of  the  laws  that  are  or  may  be  applicable  to  us  are  often
uncertain and may be conflicting, particularly with respect to foreign laws.

In particular, there are numerous U.S. federal, state, and local laws and regulations and foreign laws and regulations regarding privacy and the collection,
sharing,  use,  processing,  disclosure,  and  protection  of  personal  data.  Such  laws  and  regulations  often  have  changes  in  scope,  may  be  subject  to  differing
interpretations, and may be inconsistent among different jurisdictions. For example, in April 2016, the EU Parliament adopted a new data protection regulation,
known  as  the  General  Data  Protection  Regulation,  or  GDPR,  which  will  become  effective  in  May  2018.  The  GDPR  will  include  operational  requirements  for
companies that receive or process personal data of residents of the European Union that are more stringent than those currently in place in the European Union, and
that will include significant penalties for non-compliance, including fines of up to €20 million or 4% of total worldwide revenue. The costs of compliance with, and
other burdens imposed by, the GDPR may limit the use and adoption of our products and services and could have an adverse impact on our business.

Additionally, we rely on various legal mechanisms for transferring certain personal data outside of the European Economic Area, or EEA, including the EU-
US Privacy Shield Framework, or Privacy Shield, and EU Standard Contractual Clauses, or SCCs. In November 2016, the US Department of Commerce approved
our Privacy Shield self-certification, which is available on the Department’s Privacy Shield website. Both Privacy Shield and the SCCs are the subject of ongoing
legal challenges in European courts. If we fail or are perceived to fail to meet the Privacy Shield principles or our obligations under the SCCs, or if any of these
legal  mechanisms  for  transferring  data  from  the  EEA  are  invalidated  by  European  courts  or  otherwise  become  defunct,  EU  data  protection  authorities  or  the
Federal  Trade  Commission  could  bring  enforcement  actions  seeking  to  prohibit  or  suspend  our  data  transfers  or  alleging  unfair  or  deceptive  practices.  In  such
cases, we could be required to make potentially expensive changes to our information technology infrastructure and business operations, and we could face legal
liability, fines, negative publicity, and resulting loss of business.

We strive to comply with all applicable laws, policies, legal obligations, and industry codes of conduct relating to privacy, data security, and data protection.
However, given that the scope, interpretation,  and application of these laws and regulations are often uncertain and may be conflicting, it is possible that these
obligations may be interpreted and applied in a manner that is inconsistent from one jurisdiction to another and may conflict with other rules or our practices. Any
failure or perceived failure by us or third-party service-providers to comply with our privacy or security policies or privacy-related legal obligations, or the failure
or  perceived  failure  by  third-party  apps  with  which  our  users  choose  to  share  their  Fitbit  data  to  comply  with  their  privacy  policies  or  privacy-related  legal
obligations as they relate to the Fitbit data shared with them, or any compromise of security that results in the unauthorized release or transfer of personal data, may
result in governmental enforcement actions, litigation, or negative publicity, and could have an adverse effect on our brand and operating results.

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Certain health-related laws and regulations such as the Health Insurance Portability and Accountability Act of 1996, or HIPAA, and the Health Information
Technology for Economic and Clinical  Health Act, or HITECH, may have an impact  on our business. For example,  in September  2015 we announced that we
intend to offer HIPAA compliant capabilities to certain customers of our corporate wellness offerings who are “covered entities” under HIPAA, which may include
our execution of Business Associate Agreements with such covered entities. In addition, changes in applicable laws and regulations may result in the user data we
collect being deemed protected health information, or PHI, under HIPAA and HITECH. Furthermore, because we accept payment via credit cards, we are subject
to payment card association operating rules and certification requirements, including the Payment Card Industry Data Security Standard, or PCI DSS. If we are
unable  to  comply  with  the  applicable  privacy  and  security  requirements  under  HIPAA,  HITECH,  or  PCI  DSS,  or  we  fail  to  comply  with  Business  Associate
Agreements that we enter into with covered entities, we could be subject to claims, legal liabilities, penalties, fines, and negative publicity, which could harm our
operating results.

Governments are continuing to focus on privacy and data security and it is possible that new privacy or data security laws will be passed or existing laws will
be amended in a way that is material to our business. Any significant change to applicable laws, regulations, or industry practices regarding our users’ data could
require us to modify our services and features, possibly in a material manner, and may limit our ability to develop new products, services, and features. Although
we  have  made  efforts  to  design  our  policies,  procedures,  and  systems  to  comply  with  the  current  requirements  of  applicable  state,  federal,  and  foreign  laws,
changes  to  applicable  laws  and  regulations  in  this  area  could  subject  us  to  additional  regulation  and  oversight,  any  of  which  could  significantly  increase  our
operating costs.

Our business and products are subject to a variety of additional U.S. and foreign laws and regulations that are central to our business; our failure to comply
with these laws and regulations could harm our business or our operating results.

We are or may become subject to a variety of laws and regulations in the United States and abroad that involve matters central to our business, including
laws and regulations regarding consumer protection, advertising, privacy, intellectual property, manufacturing, anti-bribery and anti-corruption, and economic or
other trade prohibitions or sanctions.

The  manufacturing,  labeling,  distribution,  importation,  marketing,  and  sale  of  our  products  are  subject  to  extensive  regulation  by  various  U.S.  state  and
federal  and foreign agencies,  including  the U.S. Consumer Product Safety Commission,  or CPSC, FTC, FDA, Federal  Communications  Commission,  and state
attorneys general, as well as by various other federal, state, provincial, local, and international regulatory authorities in the countries in which our products and
services are manufactured, distributed marketed or sold. If we fail to comply with any of these regulations, we could become subject to enforcement actions or the
imposition of significant monetary fines, other penalties, or claims, which could harm our operating results or our ability to conduct our business.

  The global nature of our business operations also create various domestic and foreign regulatory challenges and subject us to laws and regulations such as
the U.S. Foreign Corrupt Practices Act, or FCPA, the U.K. Bribery Act, and similar anti-bribery and anti-corruption laws in other jurisdictions, and our products
are also subject to U.S. export controls, including the U.S. Department of Commerce’s Export Administration Regulations and various economic and trade
sanctions regulations established by the Treasury Department’s Office of Foreign Assets Controls. If we become liable under these laws or regulations, we may be
forced to implement new measures to reduce our exposure to this liability. This may require us to expend substantial resources or to discontinue certain products or
services, which would negatively affect our business, financial condition, and operating results. In addition, the increased attention focused upon liability issues as
a result of lawsuits, regulatory proceedings, and legislative proposals could harm our brand or otherwise impact the growth of our business. Any costs incurred as a
result of compliance or other liabilities under these laws or regulations could harm our business and operating results.

Our international operations subject us to additional costs and risks, and our continued expansion internationally may not be successful.

We have entered into many international markets in a relatively short time and may enter into additional markets in the future. Outside of the United States,
we currently have operations in Australia and a number of countries in Asia and Europe. There are significant costs and risks inherent in conducting business in
international markets, including:

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establishing and maintaining effective controls at foreign locations and the associated increased costs;
adapting our technologies, products, and services to non-U.S. consumers’ preferences and customs;
variations in margins by geography;
increased competition from local providers of similar products;

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longer sales or collection cycles in some countries;
compliance with foreign laws and regulations;
compliance  with  the  laws  of  numerous  taxing  jurisdictions  where  we  conduct  business,  potential  double  taxation  of  our  international  earnings,  and
potentially adverse tax consequences due to U.S. and foreign tax laws as they relate to our international operations;
compliance with anti-bribery laws, such as the FCPA and the U.K. Bribery Act, by us, our employees, and our business partners;
complexity  and  other  risks  associated  with  current  and  future  foreign  legal  requirements,  including  legal  requirements  related  to  consumer  protection,
consumer  product  safety,  and  data  privacy  frameworks,  such  as  the  E.U.  General  Data  Protection  Regulation,  and  any  applicable  privacy  and  data
protection laws in foreign jurisdictions where we currently conduct business or intend to conduct business in the future;
currency exchange rate fluctuations and related effects on our operating results;
economic and political instability in some countries, particularly those in China where we have expanded;
the uncertainty of protection for intellectual property rights in some countries and practical difficulties of enforcing rights abroad;
tariffs and customs duties and the classification of our products by applicable governmental bodies; and
other costs of doing business internationally.

Our products are manufactured overseas and imported into the United States, the European Union, and other countries and may be subject to duties, tariffs
and  anti-dumping  penalties  imposed  by  applicable  customs  authorities.  Those  duties  and  tariffs  are  based  on  the  classification  of  each  of  our  products  and  is
routinely subject to review by the applicable customs authorities. We are unable to predict whether those authorities will agree with our classifications and if those
authorities do not agree with our classifications additional duties, tariffs or other trade restrictions may be imposed on the importation of our products. Such actions
could result in increases in the cost of our products generally and might adversely affect our sales and profitability.

These factors and other factors could harm our international operations and, consequently, materially impact our business, operating results, and financial
condition. Further, we may incur significant operating expenses as a result of our international expansion, and it may not be successful. We have limited experience
with  regulatory  environments  and  market  practices  internationally,  and  we  may  not  be  able  to  penetrate  or  successfully  operate  in  new  markets.  We  may  also
encounter difficulty expanding into new international markets because of limited brand recognition in certain parts of the world, leading to delayed acceptance of
our products and services by users in these new international markets. If we are unable to continue to expand internationally and manage the complexity of our
global operations successfully, our financial condition and operating results could be adversely affected.

To  date,  we  have  derived  substantially  all  of  our  revenue  from  sales  of  our  wearable  devices,  and  sales  of  our  subscription-based  premium  services  have
historically accounted for less than 1% of our revenue.

To date, substantially all of our revenue has been derived from sales of our wearable devices, and we expect to continue to derive the substantial majority of
our revenue from sales of these devices for the foreseeable future. In 2016 and 2017, we derived less than 1% of our revenue from sales of our subscription-based
premium services. However, in the future we expect to increase sales of subscriptions to these services. For example, in October 2017, we launched Fitbit Coach,
our  new  premium  guidance  and  coaching  paid  offering.  If  consumer  reception  is  unfavorable  or  we  are  unable  to  successfully  sell  and  market  our  premium
services, we may be deprived of a potentially significant source of revenue in the future. In addition, sales of our premium services may lead to additional sales of
our wearable devices and user engagement with our platform. As a result, our future growth and financial performance may depend, in part, on our ability to sell
more subscriptions to our premium services.

We are regularly subject to general litigation, regulatory disputes, and government inquiries.

We are regularly subject to claims, lawsuits, including potential class actions, government investigations, and other proceedings involving competition and
antitrust, intellectual property, privacy, consumer protection, accessibility claims, securities, tax, labor and employment, commercial disputes, and other matters.
The number and significance of these disputes and inquiries have increased as our company has grown larger, our business has expanded in scope and geographic
reach, and our products and services have increased in complexity.

The outcome and impact of such claims, lawsuits, government investigations, and proceedings cannot be predicted with certainty. Regardless of the outcome,
such investigations and proceedings can have an adverse impact on us because of legal costs, diversion of management resources, and other factors. Determining
reserves  for  our  pending  litigation  is  a  complex,  fact-intensive  process  that  is  subject  to  judgment  calls.  It  is  possible  that  a  resolution  of  one  or  more  such
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substantial payments to satisfy judgments, fines, or penalties or to settle claims or proceedings, any of which could harm our business. These proceedings could
also  result  in  reputational  harm,  criminal  sanctions,  or  orders  preventing  us  from  offering  certain  products,  or  services,  or  requiring  a  change  in  our  business
practices  in  costly  ways,  or  requiring  development  of  non-infringing  or  otherwise  altered  products  or  technologies.  Any  of  these  consequences  could  harm  our
business.

An economic downturn or economic uncertainty may adversely affect consumer discretionary spending and demand for our products and services.

Our  products  and  services  may  be  considered  discretionary  items  for  consumers.  Factors  affecting  the  level  of  consumer  spending  for  such  discretionary
items include general economic conditions, and other factors, such as consumer confidence in future economic conditions, fears of recession, the availability and
cost of consumer credit, levels of unemployment, and tax rates. As global economic conditions continue to be volatile or economic uncertainty remains, including
economic  conditions  resulting  from  recent  volatility  in  European  markets,  trends  in  consumer  discretionary  spending  also  remain  unpredictable  and  subject  to
reductions.  Unfavorable  economic  conditions  may  lead  consumers  to  delay  or  reduce  purchases  of  our  products  and  services  and  consumer  demand  for  our
products and services may not grow as we expect. Our sensitivity to economic cycles and any related fluctuation in consumer demand for our products and services
may have an adverse effect on our operating results and financial condition.

Our financial performance is subject to risks associated with changes in the value of the U.S. dollar versus local currencies.

Our  primary  exposure  to  movements  in  foreign  currency  exchange  rates  relates  to  non-U.S.  dollar  denominated  sales  and  operating  expenses  worldwide.
Weakening of foreign currencies relative to the U.S. dollar adversely affects the U.S. dollar value of our foreign currency-denominated  sales and earnings, and
generally leads us to raise international pricing, potentially reducing demand for our products. In some circumstances, for competitive or other reasons, we may
decide  not  to  raise  local  prices  to  fully  offset  the  strengthening  of  the  U.S.  dollar,  or  at  all,  which  would  adversely  affect  the  U.S.  dollar  value  of  our  foreign
currency denominated sales and earnings. Conversely, a strengthening of foreign currencies relative to the U.S. dollar, while generally beneficial to our foreign
currency-denominated  sales  and  earnings,  could  cause  us to  reduce  international  pricing,  incur  losses  on our  foreign  currency  derivative  instruments,  and  incur
increased  operating  expenses, thereby  limiting  any benefit.  Additionally,  strengthening  of foreign  currencies  may also increase  our cost of product components
denominated in those currencies, thus adversely affecting gross margins.

We use derivative instruments, such as foreign currency forward contracts, to hedge certain exposures to fluctuations in foreign currency exchange rates. The
use of such hedging activities may not offset any, or more than a portion, of the adverse financial effects of unfavorable movements in foreign exchange rates over
the limited time the hedges are in place. In addition, our counterparties may be unable to meet the terms of the agreements. We seek to mitigate this risk by limiting
counterparties to major financial institutions and by spreading the risk across several major financial institutions.

Changes in our tax rates or exposure to additional tax liabilities could adversely affect our earnings and financial condition.

We are subject to income taxes in the United States and foreign jurisdictions in which we do business. These foreign jurisdictions have statutory tax rates
different from those in the United States. Accordingly, our provision for income taxes is subject to volatility and could be adversely affected by earnings being
lower than anticipated in countries where we have lower statutory rates and higher than anticipated in countries where we have higher statutory rates, by changes in
foreign currency exchange rates, or by changes in the relevant tax, accounting, and other laws, regulations, principles, and interpretations,  or by changes in the
valuation  of  our  deferred  tax  assets  and  liabilities.  As  we  operate  in  numerous  taxing  jurisdictions,  the  application  of  tax  laws  can  be  subject  to  diverging  and
sometimes conflicting interpretations by tax authorities of these jurisdictions.

Uncertainties in the interpretation and application of the 2017 Tax Cuts and Jobs Act could materially affect our tax obligations and effective tax rate.

On December  22, 2017, the U.S. Tax Cuts and Jobs Act of 2017, or the 2017 Tax Act, was signed into law and includes several  key tax provisions that
affected us, including a reduction of the statutory corporate tax rate from 35% to 21% effective for tax years beginning after December 31, 2017, elimination of
certain deductions, and changes to how the United States imposes income tax on multinational corporations, among others. The 2017 Tax Act requires complex
computations to be performed that were not previously required in U.S. tax law, and preparation and analysis of information not previously required or regularly
produced which will require significant judgment in interpreting accounting guidance for such items that is currently uncertain. We have provided our best estimate
of the impact of the 2017 Tax Act in our year-end income tax provision in accordance with our understanding of the 2017 Tax Act. However, the interpretation of
issued or future guidance on how provisions of the 2017

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Tax Act will be applied or otherwise administered by the U.S. Treasury Department, the Internal Revenue Services, and other standard-setting bodies could be
different  from  our  interpretation.  As  additional  regulatory  guidance  is  issued  by  the  applicable  taxing  authorities,  as  accounting  treatment  is  clarified,  as  we
perform  additional  analysis  on  the  application  of  the  law,  and  as  we  refine  estimates  in  calculating  the  effect,  our  final  analysis,  which  will  be  recorded  in  the
period  completed,  may  be  different  from  our  current  provisional  amounts,  which  could  materially  affect  our  tax  obligations  and  effective  tax  rate.  In  addition,
foreign  governments  may  enact  tax  laws  in  response  to  the  2017  Tax  Act  that  could  result  in  further  changes  to  global  taxation  that  may  affect  our  financial
position and results of operations in the future.

If we are unable to protect our domain names, our brand, business, and operating results could be adversely affected.

We have registered domain names for websites, or URLs, that we use in our business, such as Fitbit.com. If we are unable to maintain our rights in these
domain names, our competitors or other third parties could capitalize on our brand recognition by using these domain names for their own benefit. In addition,
although we own the “Fitbit” domain name under various global top level domains such as .com and .net, as well as under various country-specific domains, we
might not be able to, or may choose not to, acquire or maintain other country-specific versions of the “Fitbit” domain name or other potentially similar URLs. The
regulation of domain names in the United States and elsewhere is generally conducted by Internet regulatory bodies and is subject to change. If we lose the ability
to use a domain name in a particular country, we may be forced to either incur significant additional expenses to market our solutions within that country, including
the development of a new brand and the creation of new promotional materials, or elect not to sell our solutions in that country. Either result could substantially
harm our business and operating results. Regulatory bodies could establish additional top-level domains, appoint additional domain name registrars, or modify the
requirements  for  holding  domain  names.  As  a  result,  we  may  not  be  able  to  acquire  or  maintain  the  domain  names  that  utilize  the  name  “Fitbit”  in  all  of  the
countries in which we currently conduct or intend to conduct business. Further, the relationship between regulations governing domain names and laws protecting
trademarks  and  similar  proprietary  rights  varies  among  jurisdictions  and  is  unclear  in  some  jurisdictions.  Domain  names  similar  to  ours  have  already  been
registered in the United States and elsewhere, and we may be unable to prevent third parties from acquiring and using domain names that infringe, are similar to, or
otherwise decrease the value of, our brand or our trademarks. Protecting and enforcing our rights in our domain names and determining the rights of others may
require litigation, which could result in substantial costs, divert management attention, and not be decided favorably to us.

Our use of “open source” software could negatively affect our ability to sell our products and subject us to possible litigation.  

A portion of the technologies we use incorporates “open source” software, and we may incorporate open source software in the future. From time to time,
companies that incorporate open source software into their products have faced claims challenging the ownership of open source software or compliance with open
source license terms. Therefore, we could be subject to suits by parties claiming ownership of what we believe to be open source software or noncompliance with
open source licensing terms. Some open source licenses may subject us to certain unfavorable conditions, including requirements that we offer our products and
services  that  incorporate  the  open  source  software  for  no  cost  or  that  we  make  publicly  available  all  or  part  of  the  source  code  for  modifications  or  derivative
works. Additionally, if a third-party software provider has incorporated open source software into software that we license or obtain from such provider, we could
be required to disclose or provide at no cost all or part of our source code that incorporates such licensed software. If a copyright holder that distributes open source
software that we use or license or other third party were to allege that we had not complied with the conditions of the applicable license, we could be required to
incur significant legal expenses defending against such allegations and may be required to release portions of our proprietary source code, subject to significant
damages, re-engineer our products and services, enjoined from the sale of our products and services that contained the open source software if re-engineering our
products or services cannot be accomplished on a timely basis, or take other remedial action that may divert resources away from our development efforts. Any of
the foregoing could disrupt the distribution and sale of our products and services and harm our business.

We may engage in merger and acquisition activities, which could require significant management attention, disrupt our business, dilute stockholder value, and
adversely affect our operating results.

As part of our business strategy, we may make investments in other companies, products, or technologies. For example, in 2016, we acquired assets from
Coin, Inc., Pebble Industries, Inc., and Vector Watch S.R.L and in 2018 we acquired Twine Health, Inc. We may not be able to find suitable acquisition candidates
and we may not be able to complete acquisitions on favorable terms, if at all. If we do complete acquisitions, we may not ultimately strengthen our competitive
position or achieve our goals, and any acquisitions we complete could be viewed negatively by users or investors. In addition, if we fail to successfully integrate
such acquisitions, or the technologies associated with such acquisitions, into our company, the revenue and operating results of the combined company could be
adversely affected.

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Acquisitions  may  disrupt  our  ongoing  operations,  divert  management  from  their  primary  responsibilities,  subject  us  to  additional  liabilities,  increase  our
expenses,  and  adversely  impact  our  business,  financial  condition,  operating  results,  and  cash  flows.  We  may  not  successfully  evaluate  or  utilize  the  acquired
technology and accurately forecast the financial impact of an acquisition transaction, including accounting charges. We would have to pay cash, incur debt, or issue
equity securities to pay for any such acquisition, each of which may affect our financial condition or the value of our capital stock and could result in dilution to
our stockholders. If we incur more debt it would result in increased fixed obligations and could also subject us to covenants or other restrictions that would impede
our ability to manage our operations. Additionally, we may receive indications of interest from other parties interested in acquiring some or all of our business. The
time required to evaluate such indications of interest could require significant attention from management, disrupt the ordinary functioning of our business, and
adversely affect our operating results.

There  have  been  reports  that  some  users  of  certain  of  our  devices  have  experienced  skin  irritations,  which  could  result  in  additional  negative  publicity  or
otherwise harm our business. In addition, some of our users have filed personal injury lawsuits against us relating to certain of our devices, which could divert
management’s attention from our operations and result in substantial legal fees and other costs.

Due to the nature of some of our wearable devices, some users have had in the past and may in the future experience skin irritations or other biocompatibility
issues not uncommon with jewelry or other wearable products that stay in contact with skin for extended periods of time. There have been reports of some users of
certain  of  our  devices  experiencing  skin  irritations.  This  negative  publicity  could  harm  sales  of  our  products  and  also  adversely  affect  our  relationships  with
retailers that sell our products, including causing them to be reluctant to continue to sell our products. In addition, some of our users have filed personal injury
lawsuits against us relating to certain of our devices. While we do not believe that these lawsuits are material, due to the inherent uncertainties of litigation, we
cannot accurately predict the ultimate outcome of any proceedings arising from such claims, and these actions or other third-party claims against us may result in
the diversion of our management’s time and attention from other aspects of our business and may cause us to incur substantial litigation or settlement costs. If large
numbers  of  users  experience  these  problems,  we  could  be  subject  to  enforcement  actions  or  the  imposition  of  significant  monetary  fines,  other  penalties,  or
proceedings  by  the  CPSC or  other  U.S.  or  foreign  regulatory  agencies  and  face  additional  personal  injury  or  class  action  litigation,  any  of  which  could  have  a
material adverse impact on our business, financial condition, and operating results.

We may be subject to CPSC recalls, regulatory proceedings and litigation in various jurisdictions, including multi-jurisdiction federal and state class action
and  personal  injury  claims,  which  may  require  significant  management  attention  and  disrupt  our  business  operations,  and  adversely  affect  our  financial
condition, operating results, and our brand.

We face product liability, product safety and product compliance risks relating to the marketing, sale, use, and performance of our products. The products we
sell  must  be  designed  and  manufactured  to  be  safe  for  their  intended  purposes.  Certain  of  our  products  must  comply  with  certain  federal  and  state  laws  and
regulations.  For  example,  some  of  our  products  are  subject  to  the  Consumer  Product  Safety  Act  and  the  Consumer  Product  Safety  Improvement  Act,  which
empower the CPSC. The CPSC is empowered to take action against hazards presented by consumer products, up to and including product recalls. We are required
to report certain incidents related to the safety and compliance of our products to the CPSC, and failure to do so could result in a civil penalty.

Our products may, from time to time, be subject to recall for product safety and compliance reasons. For example, in March 2014, we recalled one of our
products, the Fitbit Force, after some of our users experienced allergic reactions to adhesives in the wristband. These reactions included skin irritation, rashes, and
blistering. The recall had a negative impact on our operating results, primarily in our fourth quarter of 2013, the first quarter of 2014, and the fourth quarter of
2015. We have provided and are continuing to provide full refunds to consumers who return the Fitbit Force. If returns of the Fitbit Force or other costs related to
the recall are higher than anticipated, we will be required to increase our reserves related to the recall which would negatively impact our operating results in the
future.

The recall was conducted in conjunction with the CPSC, which monitored recall effectiveness and compliance. In addition to the financial impacts discussed
elsewhere in this Annual Report on Form 10-K, this recall required us to collect a significant amount of information for the CPSC, which takes significant time and
internal and external resources.

A large number of lawsuits, including multi-jurisdiction complex federal and state class action and personal injury claims, were filed against us relating to
the  Fitbit  Force.  These  litigation  matters  required  significant  attention  of  our  management  and  resources  and  disrupted  the  ordinary  course  of  our  business
operations. We have settled all of the class action lawsuits and related individual personal injury claims. In the fourth quarter of 2015, we received proceeds from
the insurance policies that apply to

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these claims  and related  legal fees, and we recorded an accrual for liabilities  arising under these claims  that was immaterial  and falls within the amount of the
insurance proceeds received.

In addition, the CPSC previously conducted an investigation into several of our products. Although the CPSC did not find a substantial product hazard, there
can be no assurances that investigations will not be conducted or that product hazards or other defects will not be found in the future with respect to our products.
The  Fitbit  Force  product  recall,  regulatory  proceedings,  and  litigation  have  had  and  may  continue  to  have,  and  any  future  recalls,  regulatory  proceedings,  and
litigation could have an adverse impact on our financial condition, operating results, and brand. Furthermore, because of the global nature of our product sales, in
the event we experience defects with respect to products sold outside the United States, we could become subject to recalls, regulatory proceedings, and litigation
by  foreign  governmental  agencies  and  private  litigants,  which  could  significantly  increase  the  costs  of  managing  any  product  issues.  Any  ongoing  and  future
regulatory proceedings or litigation, regardless of their merits, could further divert management’s attention from our operations and result in substantial legal fees
and other costs.

Our Aria scales are subject to FDA and corresponding regulations, and sales of this product or future regulated products could be adversely affected if we fail
to comply with the applicable requirements.

Medical devices, including our Aria scales, are regulated by the FDA and corresponding state regulatory agencies, and we may have future products that are
regulated  as  medical  devices  by  the  FDA.  The  medical  device  industry  in  the  United  States  is  regulated  by  governmental  authorities,  principally  the  FDA  and
corresponding state regulatory agencies. Before we can market or sell a new regulated product or make a significant modification to an existing medical device in
the United States, we must comply with FDA Quality Management System regulations, and must obtain regulatory clearance or approval from the FDA, unless an
exemption from pre-market review applies. In addition, certain future software functionality, whether standalone or embedded in existing or future devices, may be
regulated as a medical device and require pre-market review and approval by the FDA. The process of obtaining regulatory clearances or approvals to market a
medical  device  can  be  costly  and  time  consuming,  and  we  may  not  be  able  to  obtain  these  clearances  or  approvals  on  a  timely  basis,  or  at  all,  for  future
products.  Any  delay  in,  or  failure  to  receive  or  maintain,  clearance  or  approval  for  any  medical  device  products  under  development  could  prevent  us  from
generating  revenue from these products. Medical  devices are also subject to numerous ongoing compliance  requirements  under the regulations of the FDA and
corresponding state regulatory agencies, which can be costly and time consuming. For example, under FDA regulations medical device manufacturers are required
to, among other things, (i) establish a quality management system to help ensure that their products consistently meet applicable requirements and specifications,
(ii) establish and maintain procedures for receiving, reviewing, and evaluating complaints, (iii) establish and maintain a corrective and preventive action procedure,
(iv) report certain device-related adverse events and product problems to the FDA, and (v) report to the FDA the removal or correction of a distributed product. If
we  experience  any  product  problems  requiring  reporting  to  the  FDA  or  if  we  otherwise  fail  to  comply  with  applicable  FDA  regulations  or  the  regulations  of
corresponding state regulatory agencies, with respect to our Aria scales or future regulated products, we could jeopardize our ability to sell our products and could
be subject to enforcement actions such as fines, civil penalties, injunctions, recalls of products, delays in the introduction of products into the market, and refusal of
the FDA or other regulators to grant future clearances or approvals, which could harm our reputation, business, operating results, and financial condition.

If  we  fail  to  maintain  an  effective  system  of  disclosure  controls  and  internal  control  over  financial  reporting,  our  ability  to  produce  timely  and  accurate
financial statements or comply with applicable regulations could be impaired.

We are subject to the reporting requirements of the Exchange Act, the Sarbanes-Oxley Act of 2002, or the Sarbanes-Oxley Act, and the rules and regulations
of the applicable listing standards of the New York Stock Exchange. We expect that the requirements of these rules and regulations will continue to increase our
legal, accounting, and financial compliance costs, make some activities more difficult, time-consuming, and costly, and place strain on our personnel, systems, and
resources.

The  Sarbanes-Oxley  Act  requires,  among  other  things,  that  we  maintain  effective  disclosure  controls  and  procedures  and  internal  control  over  financial
reporting. We are also required to make a formal assessment and provide an annual management report on the effectiveness of our internal control over financial
reporting, which must be attested to by our independent registered public accounting firm. In order to maintain the effectiveness of our disclosure controls and
procedures and internal control over financial reporting, we have expended, and anticipate that we will continue to expend, resources, including accounting-related
costs and management oversight.

As disclosed in Item 9A of this Annual Report on Form 10-K, we did not maintain effective  controls over the accuracy of invoicing gross revenue. This
represented a material weakness that did not result in the identification of any adjustments to our annual or interim consolidated financial statements. A material
weakness is defined as a deficiency, or combination of deficiencies, in internal control over financial reporting, such that there is a reasonable possibility that a
material misstatement of our annual

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or interim financial statements will not be prevented or detected on a timely basis. As a result of the material weakness identified, our management concluded that
our  internal  control  over  financial  reporting  was  not  effective  as  of  December  31,  2017.  Management  is  currently  assessing  a  plan  to  remediate  this  material
weakness. However, we cannot assure you that we will be able to do so in a timely manner and such remediation efforts could require increased management time
and attention and resources.

Additional  current  controls  and  any  new  controls  that  we  develop  may  become  inadequate  because  of  changes  in  conditions  in  our  business.  Further,
additional weaknesses in our disclosure controls and internal control over financial reporting may be discovered in the future. Any failure to maintain or develop
effective controls or any difficulties encountered in their implementation or improvement could harm our operating results or cause us to fail to meet our reporting
obligations and may result in a restatement of our financial statements for prior periods. Any failure to maintain effective internal control over financial reporting
also could adversely affect the results of periodic management evaluations and annual independent registered public accounting firm attestation reports regarding
the effectiveness of our internal control over financial reporting. Ineffective disclosure controls and procedures and internal control over financial reporting could
also  cause  investors  to  lose  confidence  in  our  reported  financial  and  other  information,  which  would  likely  have  a  negative  effect  on  the  trading  price  of  our
Class  A  common  stock.  In  addition,  if  we  are  unable  to  continue  to  meet  these  requirements,  we  may  not  be  able  to  remain  listed  on  the  New  York  Stock
Exchange.

Our business is subject to the risk of earthquakes, fire, power outages, floods, and other catastrophic events, and to interruption by manmade problems such as
terrorism.

Our business is vulnerable to damage or interruption from earthquakes, fires, floods, power losses, telecommunications failures, terrorist attacks, acts of war,
human errors, break-ins, and similar events. The third-party systems and operations and contract manufacturers we rely on, such as the data centers we lease, are
subject to similar risks. For example, a significant natural disaster, such as an earthquake, fire, or flood, could have an adverse effect on our business, operating
results, and financial condition, and our insurance coverage may be insufficient to compensate us for losses that may occur. Our corporate offices and one of our
data  center  facilities  are  located  in  California,  a  state  that  frequently  experiences  earthquakes.  In  addition,  the  facilities  at  which  our  contract  manufacturers
manufacture our products are located in parts of Asia that frequently endure typhoons and earthquakes. Acts of terrorism, which may be targeted at metropolitan
areas that have higher population density than rural areas, could also cause disruptions in our or our suppliers’, contract manufacturers’, and logistics providers’
businesses  or  the  economy  as  a  whole.  We  may  not  have  sufficient  protection  or  recovery  plans  in  some  circumstances,  such  as  natural  disasters  affecting
California or other locations where we have data centers or store significant inventory of our products. As we rely heavily on our data center facilities, computer
and communications systems, and the Internet to conduct our business and provide high-quality customer service, these disruptions could negatively impact our
ability to run our business and either directly or indirectly disrupt suppliers’ businesses, which could have an adverse effect on our business, operating results, and
financial condition.

If our estimates or judgments relating to our critical accounting policies prove to be incorrect, our operating results could be adversely affected.

The  preparation  of  financial  statements  in  conformity  with  U.S.  GAAP  requires  management  to  make  estimates  and  assumptions  that  affect  the  amounts
reported in the consolidated financial statements and accompanying notes. We base our estimates on historical experience and on various other assumptions that
we believe to be reasonable under the circumstances, as provided in “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in
this Annual Report on Form 10-K. The results of these estimates form the basis for making judgments about the carrying values of assets, liabilities, and equity,
and the amount of revenue and expenses that are not readily apparent from other sources. Significant assumptions and estimates used in preparing our consolidated
financial statements include those related to revenue recognition, inventories, product warranty reserves, business combinations, accounting for income taxes, and
stock-based compensation expense. Our operating results may be adversely affected if our assumptions change or if actual circumstances differ from those in our
assumptions, which could cause our operating results to fall below the expectations of securities analysts and investors, resulting in a decline in the price of our
Class A common stock.

Our  revolving  credit  facility  provides  our  lenders  with  first-priority  liens  against  substantially  all  of  our  assets,  excluding  our  intellectual  property,  and
contains financial covenants and other restrictions on our actions, which could limit our operational flexibility and otherwise adversely affect our financial
condition.

In December 2015, we amended and restated our existing revolving credit facility and revolving credit and guarantee agreement into one senior credit facility.

We further amended this agreement in May 2017. Our credit agreement restricts our ability to, among other things:

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use our accounts receivable, inventory, trademarks, and most of our other assets as security in other borrowings or transactions;

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incur additional indebtedness;
sell certain assets;
guarantee certain obligations of third parties;
declare dividends or make certain distributions; and
undergo a merger or consolidation or other transactions.

Our credit agreement requires us to maintain a minimum liquidity reserve. Our ability to comply with these and other covenants is dependent upon a number

of factors, some of which are beyond our control.

Our failure to comply with the covenants or payment requirements, or the occurrence of other events specified in our credit agreement, could result in an
event of default under the credit agreement, which would give our lenders the right to terminate their commitments to provide additional loans under the credit
agreement and to declare all borrowings outstanding, together with accrued and unpaid interest and fees, to be immediately due and payable. In addition, we have
granted  our  lenders  first-priority  liens  against  all  of  our  assets,  excluding  our  intellectual  property,  as  collateral.  Failure  to  comply  with  the  covenants  or  other
restrictions in the credit agreement could result in a default. If the debt under our credit agreement was to be accelerated, we may not have sufficient cash on hand
or be able to sell sufficient collateral to repay it, which would have an immediate adverse effect on our business and operating results. This could potentially cause
us to cease operations and result in a complete loss of your investment in our Class A common stock.

We are exposed to fluctuations in the market values of our investments.

Credit  ratings  and  pricing  of  our  investments  can  be  negatively  affected  by  liquidity,  credit  deterioration,  financial  results,  economic  risk,  political  risk,
sovereign risk, changes in interest rates, or other factors. As a result, the value and liquidity of our cash, cash equivalents, and marketable securities may fluctuate
substantially. Therefore, although we have not realized any significant losses on its cash, cash equivalents, and marketable securities, future fluctuations in their
value could result in a significant realized loss, which could materially adversely affect our financial condition and operating results.

Regulations related to conflict minerals may cause us to incur additional expenses and could limit the supply and increase the costs of certain metals used in
the manufacturing of our products.

We  are  subject  to  requirements  under  the  Dodd-Frank  Wall  Street  Reform  and  Consumer  Protection  Act  of  2010,  which  will  require  us  to  conduct  due
diligence on and disclose whether or not our products contain conflict minerals. The implementation  of these requirements could adversely affect the sourcing,
availability, and pricing of the materials used in the manufacture of components used in our products. In addition, we will incur additional costs to comply with the
disclosure  requirements,  including  costs  related  to  conducting  diligence  procedures  to  determine  the  sources  of  minerals  that  may  be  used  or  necessary  to  the
production of our products and, if applicable, potential changes to products, processes, or sources of supply as a consequence of such due diligence activities. It is
also possible that we may face reputational harm if we determine that certain of our products contain minerals not determined to be conflict free or if we are unable
to alter our products, processes, or sources of supply to avoid such materials.

Risks Related to Ownership of Our Class A Common Stock

The market price of our Class A common stock has been and will likely continue to be volatile, and you could lose all or part of your investment.

The market price of our Class A common stock has been, and will likely continue to be, volatile. Since shares of our Class A common stock were sold in our
IPO in June 2015 at a price of $20.00 per share, our stock price has ranged from $4.90 to $51.90 through December 31, 2017. In addition, the trading prices of the
securities of technology companies in general have been highly volatile.

The  market  price  of  our  Class  A  common  stock  may  continue  to  fluctuate  significantly  in  response  to  numerous  factors,  many  of  which  are  beyond  our

control, including:

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overall performance of the equity markets;
actual or anticipated fluctuations in our revenue and other operating results;
changes in the financial projections we may provide to the public or our failure to meet these projections;
failure of securities analysts to initiate or maintain coverage of us, changes in financial estimates by any securities analysts who follow our company, or
our failure to meet these estimates or the expectations of investors;
recruitment or departure of key personnel;

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the economy as a whole and market conditions in our industry;
negative publicity related to problems in our manufacturing or the real or perceived quality of our products, as well as the failure to timely launch new
products that gain market acceptance;
rumors and market speculation involving us or other companies in our industry;
announcements by us or our competitors of significant technical innovations, acquisitions, strategic partnerships, joint ventures, or capital commitments;
new laws or regulations or new interpretations of existing laws or regulations applicable to our business;
lawsuits threatened or filed against us;
other events or factors, including those resulting from war, incidents of terrorism, or responses to these events; and
sales of shares of our Class A common stock by us or our stockholders.

In addition, the stock markets have experienced extreme price and volume fluctuations that have affected and continue to affect the market prices of equity
securities of many companies. Stock prices of many companies have fluctuated in a manner unrelated or disproportionate to the operating performance of those
companies.  We  are  currently  subject  to  securities  litigation,  which  is  described  in  Note  7,  “Commitments  and  Contingencies”  in  the  notes  to  our  consolidated
financial  statements.  This  or  any  future  securities  litigation  could  subject  us  to  substantial  costs,  divert  resources  and  the  attention  of  management  from  our
business, and adversely affect our business.

Sales of substantial amounts of our Class A common stock in the public markets, or the perception that they might occur, could cause the market price of our
Class A common stock to decline.

Sales  of  a  substantial  number  of  shares  of  our  Class  A  common  stock  into  the  public  market,  particularly  sales  by  our  directors,  executive  officers,  and

principal stockholders, or the perception that these sales might occur, could cause the market price of our Class A common stock to decline.

As of December 31, 2017, there were 238.8 million shares of Class A and Class B common stock outstanding. All shares of our common stock are available
for sale in the public market, subject in certain cases to volume limitations under Rule 144 under the Securities Act of 1933, as amended, or the Securities Act,
various vesting agreements, as well as our insider trading policy.

In addition, as of December 31, 2017, we had stock options outstanding that, if fully exercised, would result in the issuance of 1.7 million shares of Class A
common stock and 19.6 million shares of Class B common stock (which shares of Class B common stock generally convert to Class A common stock upon their
sale or transfer). We also had RSUs outstanding as of December 31, 2017 that may be settled for 19.1 million shares of Class A common stock and 0.1 million
shares of Class B common stock. As of December 31, 2017, all of the shares issuable upon the exercise of stock options or settlement of RSUs and the shares
reserved for future issuance under our equity incentive plans, are registered for public resale under the Securities Act. Accordingly, these shares may be freely sold
in the public market upon issuance subject to applicable vesting requirements.

In addition, certain holders of our capital stock have rights, subject to some conditions, to require us to file registration statements for the public resale of

their shares or to include such shares in registration statements that we may file for us or other stockholders.

The  dual  class  structure  of  our  common  stock  has  the  effect  of  concentrating  voting  control  with  our  founders  and  certain  other  holders  of  our  Class  B
common stock, including our directors, executive officers, and significant stockholders. This will limit or preclude your ability to influence corporate matters,
including the election of directors, amendments of our organizational documents, and any merger, consolidation, sale of all or substantially all of our assets,
or other major corporate transaction requiring stockholder approval.

Our Class B common stock has ten votes per share and our Class A common stock has one vote per share. As of December 31, 2017, our directors, executive
officers, and holders of more than 5% of our common stock, and their respective affiliates, held a substantial majority of the voting power of our capital stock.
Because of the ten-to-one voting ratio between our Class B and Class A common stock, our co-founders, who currently serve as our chief executive officer and
chief technology officer, and certain other holders of our Class B common stock collectively will control a majority of the combined voting power of our common
stock and therefore are able to control all matters submitted to our stockholders for approval until the earlier of June 17, 2027 or the date the holders of a majority
of our Class B common stock choose to convert their shares. This concentrated control will limit or preclude your ability to influence corporate matters for the
foreseeable future, including the election of directors, amendments of our organizational documents, and any merger, consolidation, sale of all or substantially all
of our assets, or other major corporate transaction requiring stockholder approval. In addition, this may prevent or discourage unsolicited acquisition proposals or
offers for our capital stock that you may feel are in your best interest as one of our stockholders.

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Future transfers by holders of Class B common stock will generally result in those shares converting to Class A common stock, subject to limited exceptions,
such as certain transfers effected for estate planning purposes. The conversion of Class B common stock to Class A common stock will have the effect, over time,
of increasing the relative voting power of those holders of Class B common stock who retain their shares in the long term.

If securities or industry analysts do not publish research, or publish inaccurate or unfavorable research, about our business, the price of our Class A common
stock and trading volume could decline.

The trading market for our Class A common stock depends in part on the research and reports that securities or industry analysts publish about us or our
business. We do not have any control over these analysts. If industry analysts cease coverage of us, the trading price for our common stock would be negatively
affected. If one or more of the analysts who cover us downgrade our Class A common stock or publish inaccurate or unfavorable research about our business, our
common stock price would likely decline. If one or more of these analysts’ cease coverage of us or fail to publish reports on us regularly, demand for our Class A
common stock could decrease, which might cause our Class A common stock price and trading volume to decline.

We do not intend to pay dividends for the foreseeable future.

We  have  never  declared  or  paid  any  cash  dividends  on  our  common  stock  and  do  not  intend  to  pay  any  cash  dividends  in  the  foreseeable  future.  We
anticipate that we will retain all of our future earnings for use in the development of our business and for general corporate purposes. Any determination to pay
dividends in the future will be at the discretion of our board of directors. Accordingly, investors must rely on sales of their common stock after price appreciation,
which may never occur, as the only way to realize any future gains on their investments. In addition, our credit facility contains restrictions on our ability to pay
dividends.

Provisions in our charter documents and under Delaware law could make an acquisition of our company more difficult, limit attempts by our stockholders to
replace or remove our current management, limit our stockholders’ ability to obtain a favorable judicial forum for disputes with us or our directors, officers, or
employees, and limit the market price of our common stock.

Provisions in our restated certificate of incorporation and restated bylaws may have the effect of delaying or preventing a change of control or changes in our

management. Our restated certificate of incorporation and restated bylaws include provisions that:

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provide that our board of directors will be classified into three classes of directors with staggered three-year terms at such time as the outstanding shares
of our Class B common stock represent less than a majority of the combined voting power of our common stock;
permit the board of directors to establish the number of directors and fill any vacancies and newly created directorships;
require super-majority voting to amend some provisions in our restated certificate of incorporation and restated bylaws;
authorize the issuance of “blank check” preferred stock that our board of directors could use to implement a stockholder rights plan;
provide that only the chairman of our board of directors, our chief executive officer, or a majority of our board of directors will be authorized to call a
special meeting of stockholders;
provide for a dual class common stock structure in which holders of our Class B common stock have the ability to control the outcome of matters
requiring stockholder approval, even if they own significantly less than a majority of the outstanding shares of our Class A and Class B common stock,
including the election of directors and significant corporate transactions, such as a merger or other sale of our company or its assets;
prohibit stockholder action by written consent, which requires all stockholder actions to be taken at a meeting of our stockholders;
provide that the board of directors is expressly authorized to make, alter, or repeal our bylaws; and
establish advance notice requirements for nominations for election to our board of directors or for proposing matters that can be acted upon by
stockholders at annual stockholder meetings.

In  addition,  our  restated  certificate  of  incorporation  provides  that  the  Court  of  Chancery  of  the  State  of  Delaware  will  be  the  exclusive  forum  for:  any
derivative action or proceeding brought on our behalf; any action asserting a breach of fiduciary duty; any action asserting a claim against us arising pursuant to the
Delaware General Corporation Law, our restated certificate of incorporation, or our restated bylaws; or any action asserting a claim against us that is governed by
the internal affairs doctrine. This choice of forum provision may limit a stockholder’s ability to bring a claim in a judicial forum that it finds favorable for disputes
with us or any of our directors, officers, or other employees, which may discourage lawsuits with respect to such claims.

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Alternatively, if a court were to find the choice of forum provision contained in our restated certificate of incorporation to be inapplicable or unenforceable in an
action, we may incur additional costs associated with resolving such action in other jurisdictions, which could harm our business, operating results, and financial
condition.

Moreover,  Section  203  of  the  Delaware  General  Corporation  Law  may  discourage,  delay,  or  prevent  a  change  in  control  of  our  company.  Section  203

imposes certain restrictions on mergers, business combinations, and other transactions between us and holders of 15% or more of our common stock.

Item 1B. Unresolved Staff Comments

None.

Item 2. Properties

We  are  a  global  company  with  our  corporate  headquarters  located  in  San  Francisco,  California.  Our  headquarters  facilities  in  San  Francisco  comprise
approximately  366,000  square  feet  of  space  pursuant  to  several  leases  that  expire  at  various  dates  through  June  2024.  Our  corporate  headquarters  serve  as  the
principal  facilities  for  our  administrative,  sales,  marketing,  product  development,  and  customer  support  groups.  We  also  lease  additional  office  space  in  San
Francisco and around the world for various product development, operational and support purposes. We believe our existing facilities are adequate to meet our
current requirements. If we were to require additional space, we believe we will be able to obtain such space on acceptable and commercially reasonable terms.

Item 3. Legal Proceedings

For a discussion of legal proceedings, see Note 7, “Commitments and Contingencies,” in the notes to our consolidated financial statements included in Part

II, Item 8 of this Annual Report on Form 10-K, which is incorporated herein by reference.

Further, we are and, from time to time, we may become, involved in legal proceedings or be subject to claims arising in the ordinary course of our business.
We  are  not  presently  a  party  to  any  other  legal  proceedings  that  in  the  opinion  of  our management,  if  determined  adversely  to  us, would individually  or  taken
together have a material adverse effect on our business, operating results, financial condition, or cash flows.

Item 4. Mine Safety Disclosures

None.

PART II

Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters, and Issuer Purchases of Equity Securities

Price Range of Common Stock

Our Class A common stock has been listed on the New York Stock Exchange under the symbol “FIT” since June 18, 2015. Prior to that date, there was no
public trading market for our Class A common stock. The following table sets forth for the periods indicated the high and low sale prices per share of our Class A
common stock as reported on the New York Stock Exchange:

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Fiscal Year 2017

Fourth Quarter

Third Quarter

Second Quarter

First Quarter

Fiscal Year 2016

Fourth Quarter

Third Quarter

Second Quarter

First Quarter

High

Low

7.32   $

7.09   $

6.80   $

8.40   $

15.08   $

17.18   $

18.85   $

30.96   $

5.70

5.00

4.90

5.31

7.20

12.05

11.65

11.91

$

$

$

$

$

$

$

$

Our Class B common stock is neither listed nor traded.     

Holders of Record

As of December 31, 2017 , we had 33 holders of record of our Class A common stock. Because many of our shares of Class A common stock are held by
brokers  and  other  institutions  on  behalf  of  stockholders,  we  are  unable  to  estimate  the  total  number  of  stockholders  represented  by these  record  holders.  As  of
December 31, 2017 , we had 29 holders of record of our Class B common stock.

Dividends

We have never declared or paid any cash dividends on our capital stock. We currently intend to retain any future earnings and do not expect to pay any cash
dividends on our common stock for the foreseeable future. Any determination  to pay dividends in the future will be at the discretion of our board of directors,
subject to applicable laws, and will depend on our financial condition, operating results, capital requirements, general business conditions, and other factors that
our board of directors considers relevant. In addition, the terms of our credit facility contains restrictions on our ability to declare and pay cash dividends.

Securities Authorized for Issuance under Equity Compensation Plans

The information required by this item with respect to our equity compensation plans is incorporated by reference to our Proxy Statement for the 2018 Annual

Meeting of Stockholders to be filed with the SEC within 120 days of the fiscal year ended December 31, 2017 .

Stock Performance Graph

The following graph compares the cumulative total return on our Class A common stock with that of the S&P 500 Index and the Nasdaq Composite Index.
The  period  shown  commences  on  June  18,  2015,  our  initial  public  offering  date,  and  ends  on  December  31, 2017  ,  the  end  of  our  last  fiscal  year.    The  graph
assumes  $100  was  invested  at  the  close  of  market  on  June  18,  2015  in  our  Class  A  common  stock,  the  S&P  500  Index  and  the  Nasdaq  Composite  Index,  and
assumes the reinvestment of any dividends. The stock price performance on the following graph is not intended to forecast or be indicative of future stock price
performance of our Class A common stock.

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This performance graph shall not be deemed incorporated by reference into any of our other filings under the Exchange Act, or the Securities Act, except to the
extent we specifically incorporate it by reference into such filing.

Recent Sales of Unregistered Securities.

None.

Purchases of Equity Securities by the Issuer and Affiliated Purchasers

None.

33

 
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Item 6. Selected Financial Data

We  derived  the  selected  consolidated  statements  of  operations  data  for  2017  ,  2016  and  2015  and  the  selected  consolidated  balance  sheet  data  as  of
December  31,  2017  and 2016 from  our  audited  consolidated  financial  statements  included  elsewhere  in  this  Annual  Report  on  Form  10-K.  The  consolidated
statements of operations data for 2014 and 2013 , and the consolidated balance sheet data as of December 31, 2015 , 2014 and 2013 are derived from consolidated
financial  statements  that  are  not  included  in  this  Annual  Report  on  Form  10-K.  Our  historical  results  are  not  necessarily  indicative  of  the  results  that  may  be
expected in the future. You should read this data together with our “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and
the consolidated financial statements and related notes included elsewhere in this Annual Report on Form 10-K.

For the Year Ended December 31,

2017

2016

2015 (1)

2014 (1)

2013 (1)

(in thousands, except per share data)

Consolidated Statements of Operations Data :

Revenue
Cost of revenue (2)

Gross profit

Operating expenses:

Research and development (2)
Sales and marketing (2)
General and administrative (2)

Change in contingent consideration

Total operating expenses

Operating income (loss)

Interest income (expense), net

Other income (expense), net

Income (loss) before income taxes

Income tax expense (benefit) (3)

Net income (loss)

Net income (loss) per share attributable to common stockholders (4) :

Basic

Diluted

Other Data :
Devices sold (5)
Active users (6)
Adjusted EBITDA (7)
Non-GAAP free cash flow (8)

$

1,615,519   $

2,169,461   $

1,857,998   $

745,433   $

924,618  

1,323,577  

690,901  

845,884  

956,935  

901,063  

387,776  

357,657  

343,012  

415,042  

133,934  

—  

320,191  

491,255  

146,903  

—  

891,988  

958,349  

(201,087)  

(112,465)  

3,647  

2,796  

3,156  

14  

(194,644)  

(109,295)  

82,548  

(6,518)  

150,035  

332,741  

77,793  

(7,704)  

552,865  

348,198  

(1,019)  

(59,230)  

287,949  

112,272  

54,167  

112,005  

33,556  

—  

199,728  

157,929  

(2,222)  

(15,934)  

139,773  

7,996  

(277,192)   $

(102,777)   $

175,677   $

131,777   $

271,087

210,836

60,251

27,873

26,847

14,485

—

69,205

(8,954)

(1,082)

(3,649)

(13,685)

37,937

(51,622)

(1.19)   $

(1.19)   $

(0.47)   $

(0.47)   $

0.88   $

0.75   $

0.70   $

0.63   $

(1.32)

(1.32)

15,343  

25,367  

22,295  

23,238  

21,355  

16,903  

10,904  

6,700  

(52,158)   $

29,985   $

389,879   $

191,042   $

(24,919)   $

60,080   $

110,691   $

(7,708)   $

4,476

2,570

79,049

25,685

$

$

$

$

$

(1)

In March 2014, we recalled the Fitbit Force. The recall, which primarily affected our results for the fourth quarter of 2013, the first quarter of 2014, and the fourth quarter of 2015, had the
following effect on our income (loss) before income taxes in 2015, 2014, and 2013. The recall had a negligible effect on our loss before income taxes in 2016.

Reduction of revenue

Incremental (benefit to) cost of revenue

Impact on gross profit

Incremental general and administrative expenses (benefit)

Impact on income (loss) before income taxes

34

Year Ended December 31,

2015

2014

2013

(in thousands)

$

$

—   $

(8,112)   $

(30,607)

(5,755)  

(5,755)  

(4,416)  

11,339  

(19,451)  

3,389  

51,205

(81,812)

2,838

10,171   $

(22,840)   $

(84,650)

 
 
 
 
 
 
 
 
 
   
   
   
   
 
   
   
   
   
 
   
   
   
   
 
   
   
   
   
 
 
 
 
 
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(2)

Includes stock-based compensation expense as follows:

Cost of revenue

Research and development

Sales and marketing

General and administrative

Total

2017

2016

2015

2014

2013

Year Ended December 31,

(in thousands)

$

$

5,312   $

4,797   $

4,739   $

890   $

54,123  

14,959  

17,187  

47,207  

11,575  

15,853  

18,251  

7,419  

10,615  

2,350  

1,295  

2,269  

91,581   $

79,432   $

41,024   $

6,804   $

37

288

204

91

620

(3)

In 2017, we established a valuation allowance of $99.6 million against our U.S. deferred tax assets. See Note 9 of the “Notes to Consolidated Financial Statements” included elsewhere in
this Annual Report on Form 10-K for further details.

(4) See Notes 2 and 10 of the “Notes to Consolidated Financial Statements” included elsewhere in this Annual Report on Form 10-K for an explanation of the calculations of our net income

(loss) per share attributable to common stockholders, basic and diluted.

(5) See the section titled “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Key Business Metrics—Devices Sold” for more information.
(6) See the section titled “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Key Business Metrics—Active Users” for more information.
(7) Adjusted  EBITDA  is  a  financial  measure  that  is  not  calculated  in  accordance  with  U.S.  GAAP.  See  the  section  titled  “—Non-GAAP  Financial  Measures—Adjusted  EBITDA”  for

information regarding our use of adjusted EBITDA and a reconciliation of adjusted EBITDA to net income (loss).

(8) Non-GAAP free cash flow is a financial measure that is not calculated in accordance with U.S. GAAP. See the section titled “—Non-GAAP Financial Measures—Non-GAAP free cash

flow” for information regarding our use of non-GAAP free cash flow and a reconciliation to net cash provided by (used in) operating activities.

2017

2016

2015

2014

2013

As of December 31,

(in thousands)

Consolidated Balance Sheet Data :

Cash, cash equivalents, and marketable securities

$

679,300   $

706,013   $

664,478   $

195,626   $

Working capital

Total assets

Total long-term debt

Retained earnings (accumulated deficit)

Total stockholders’ equity (deficit)

Non-GAAP Financial Measures

683,065  

724,231  

847,157  

1,582,075  

1,821,926  

1,519,066  

—  

(132,112)  

823,963  

—  

140,142  

998,532  

—  

242,919  

981,451  

101,860  

633,051  

132,589  

67,242  

75,262  

81,728

14,457

230,774

10,710

(64,535)

(63,466)

To supplement our consolidated financial statements presented in accordance with U.S. GAAP, we monitor and consider adjusted EBITDA and free cash
flow, which are non-GAAP financial measures. These non-GAAP financial measures are not based on any standardized methodology prescribed by U.S. GAAP
and are not necessarily comparable to similarly-titled measures presented by other companies.

Adjusted EBITDA

We define adjusted EBITDA as net income adjusted to exclude stock-based compensation expense, depreciation and intangible assets amortization, litigation
expense  related  to  matters  with  Aliphcom,  Inc.  d/b/a  Jawbone,  or Jawbone,  the  impact  of the  Fitbit  Force  recall,  the  revaluation  of  our redeemable  convertible
preferred  stock  warrant  liability  prior  to  our  initial  public  offering,  or  IPO,  change  in  contingent  consideration,  interest  income  (expense),  net,  and  income  tax
expense (benefit). We began excluding Jawbone related litigation expense in the second quarter of 2016 because we do not believe these expenses have a direct
correlation to the operations of our business and because of the singular nature of the claims underlying the Jawbone litigation matters.

We use adjusted EBITDA to evaluate our operating performance and trends and make planning decisions. We believe that adjusted EBITDA helps identify
underlying trends in our business that could otherwise be masked by the effect of the expenses and other items that we exclude in adjusted EBITDA. In particular,
the exclusion of the effect of stock-based compensation expense

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and certain expenses in calculating adjusted EBITDA can provide a useful measure for period-to-period comparisons of our business. Accordingly, we believe that
adjusted EBITDA provides useful information to investors and others in understanding and evaluating our operating results, enhancing the overall understanding of
our past performance and future prospects, and allowing for greater transparency with respect to a key financial metric used by our management in its financial and
operational decision-making.

Adjusted EBITDA is not prepared in accordance with U.S. GAAP, and should not be considered in isolation of, or as an alternative to, measures prepared in
accordance with U.S. GAAP. There are a number of limitations related to the use of this non-GAAP financial measure rather than net income (loss), which is the
nearest U.S. GAAP equivalent of adjusted EBITDA. Some of these limitations are:

•

•

•
•

•
•

•

•

•
•

adjusted EBITDA excludes stock-based compensation expense, which has been, and will continue to be for the foreseeable future, a significant recurring
expense for our business and an important part of our compensation strategy;
adjusted  EBITDA  excludes  depreciation  and  intangible  assets  amortization  expense  and,  although  these  are  non-cash  expenses,  the  assets  being
depreciated and amortized may have to be replaced in the future;
adjusted EBITDA excludes external litigation expenses to support our legal proceedings with Jawbone, which may continue to be a recurring expense;
adjusted EBITDA excludes the Fitbit Force recall, which primarily impacted our results for the fourth quarter of 2013, the first quarter of 2014, and the
fourth quarter of 2015;
adjusted EBITDA excludes the impact of our restructuring in 2017, which has not been a recurring expense;
adjusted EBITDA excludes the revaluation of our redeemable convertible preferred stock warrant liability, which was a historically recurring non-cash
charge prior to our initial public offering, but will not recur in the periods following the completion of our initial public offering;
adjusted  EBITDA  excludes  change  in  contingent  consideration,  a  non-recurring  benefit  received  for  the  reversal  of  a  contingent  liability  incurred  in
connection with the acquisition of FitStar;
adjusted EBITDA excludes interest expense, or the cash requirements necessary to service interest or principal payments on our debt, which reduces cash
available to us;
adjusted EBITDA excludes income tax expense (benefit); and
the expenses  and other  items  that  we exclude  in our calculation  of adjusted  EBITDA may differ  from  the expenses  and other  items,  if any, that  other
companies may exclude from adjusted EBITDA when they report their operating results.

Because  of  these  limitations,  adjusted  EBITDA  should  be  considered  along  with  other  operating  and  financial  performance  measures  presented  in

accordance with U.S. GAAP.

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The following table presents a reconciliation of net income (loss) to adjusted EBITDA:

Net income (loss)

Stock-based compensation expense *

Depreciation and amortization

Litigation expense, net — Jawbone

Impact of restructuring

Impact of Fitbit Force recall

Revaluation of redeemable convertible preferred stock warrant liability

Change in contingent consideration

Interest (income) expense, net

Income tax expense (benefit)

Adjusted EBITDA

Year Ended December 31,

2017

2016

2015

2014

2013

(in thousands)

$

(277,192)   $

(102,777)   $

175,677   $

131,777   $

(51,622)

90,853  

45,693  

3,212  

6,375  

—  

—  

—  

79,432  

38,133  

24,845  

—  

26  

—  

—  

(3,647)  

82,548  

(3,156)  

(6,518)  

41,024  

21,107  

—  

—  

(10,171)  

56,655  

(7,704)  

1,019  

112,272  

6,804  

6,131  

—  

—  

22,840  

13,272  

—  

2,222  

7,996  

$

(52,158)   $

29,985   $

389,879   $

191,042   $

620

3,012

—

—

84,650

3,370

—

1,082

37,937

79,049

* A portion of stock-based compensation expense for the year ended December 31, 2017 was allocated to and included in "Impact of restructuring," thus explaining the difference between the
total by function presented in this table compared to the amounts presented in the above tables.

Non-GAAP free cash flow

We define non-GAAP free cash flow as net cash provided by (used in) operating activities less purchase of property and equipment. We consider free cash
flow to be a liquidity measure that provides useful information to management and investors about the amount of cash generated by the business that can possibly
be  used  for  investing  in  our  business  and  strengthening  ​the​  balance  sheet,  but  it  is  not  intended  to  represent  the  residual  cash  flow  available  for  discretionary
expenditures.    Non-GAAP free  cash  flow  is  not  prepared  in  accordance  with  U.S.  GAAP, and  should  not  be  considered  in  isolation  of,  or  as  an  alternative  to,
measures prepared in accordance with U.S. GAAP.

The following table presents a reconciliation of net cash provided by (used in) operating activities to non-GAAP free cash flow:

Net cash provided by operating activities (9)

Purchase of property and equipment  

Non-GAAP free cash flow

Net cash used in investing activities

Net cash provided by financing activities (9)

Year Ended December 31,

2017

2016

2015

2014

2013

(in thousands)

$

$

$

$

64,241   $

138,720   $

141,257   $

18,787   $

(89,160)  

(78,640)  

(30,566)  

(26,495)  

(24,919)   $

60,080   $

110,691   $

(7,708)   $

(28,718)   $

(392,666)   $

(170,027)   $

(24,185)   $

4,635   $

19,794   $

368,953   $

119,251   $

33,209

(7,524)

25,685

(9,834)

45,205

(9) Our adoption of ASU 2016-09 on January 1, 2017 resulted in excess tax benefits for share-based payments recorded as a reduction of income tax expense and reflected within operating
cash flows, rather than recorded within equity and reflected within financing cash flows. We elected to adopt this new standard retrospectively, which impacted the presentation for all
periods prior to the adoption date. See Note 1 of the “Notes to Consolidated Financial Statements - Recent Accounting Pronouncements” included elsewhere in this Annual Report on
Form 10-K for additional information.

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Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations

The following discussion and analysis of our financial condition and results of operations should be read in conjunction with the section titled “Selected
Financial Data” and our consolidated financial statements and related notes included elsewhere in this Annual Report on Form 10-K. This discussion contains
forward-looking  statements  that  involve  risks  and  uncertainties.  Our  actual  results  could  differ  materially  from  such  forward-looking  statements.  Factors  that
could cause or contribute to those differences include, but are not limited to, those identified below and those discussed above in the section titled “Risk Factors”
included elsewhere in this Annual Report on Form 10-K.

Overview

We generate substantially all of our revenue from sales of our wearable devices which includes both connected health and fitness devices and smartwatches.
We sell our products in over 45,000 retail  stores and in 86 countries,  through our retailers’  websites,  through our online store  at Fitbit.com,  and as part of our
corporate wellness offering.

The following are financial highlights for 2017 , 2016 and 2015 :

Revenue

Net income (loss)

Year Ended December 31,

2017

2016

(in thousands)

2015

$

$

1,615,519   $

2,169,461   $

(277,192)   $

(102,777)   $

1,857,998

175,677

In  September  2017,  Wynit  filed  for  bankruptcy  protection  under  Chapter  11  of  the  United  States  Bankruptcy  Code.  Wynit  was  our  largest  customer,
historically representing 11% of total revenue during the six months ended July 1, 2017 and 19% of total accounts receivables as of July 1, 2017. In connection
with Wynit’s bankruptcy filing, we believed that the collectability of the product shipments to Wynit during the third quarter of 2017 was not reasonably assured.
However, as of July 1, 2017, collectability of accounts receivables from Wynit was reasonably assured.

We ceased to recognize revenue from Wynit, which totaled $8.1 million during the third quarter of 2017. Additionally, we recorded a charge of $35.8 million
during the third quarter ended September 30, 2017 comprised of cost of revenue of $5.5 million associated with shipments to Wynit in the third quarter of 2017 and
bad  debt  expense  of  $30.3  million  associated  with  all  of  Wynit’s  outstanding  accounts  receivables.  We  maintain  credit  insurance  that  covers  a  portion  of  the
exposure related to our customer receivables. We recorded an insurance receivable based on an analysis of our insurance policies, including their exclusions, an
assessment of the nature of the claim, and information from our insurance carrier. As of September 30, 2017, we recorded an insurance receivable of $26.8 million,
included in prepaid expenses and other current assets, associated with the amount we concluded was probable related to the claim. The $26.8 million insurance
receivable allowed us to recover $22.7 million of bad debt expense and $4.1 million of cost of revenue, resulting in a net charge of $9.0 million in the consolidated
statement of operations comprised of net bad debt expense of $7.6 million and net cost of revenue of $1.4 million. We received $21.4 million of the insurance
receivable during the fourth quarter of 2017 and the remaining $5.4 million in January 2018.

During  2017,  we  recorded  a  $99.6 million valuation  allowance  against  a  portion  of  our  U.S.  deferred  tax  assets  as  we  determined,  within  the  period,  we

would not meet the more likely than not threshold. See Note 9 of the “Notes to Consolidated Financial Statements - Income Taxes” for additional information.

In  January  2017,  we  announced  cost-efficiency  measures  to  be  implemented  in  2017  that  include  realigning  sales  and  marketing  spend  and  improved
optimization  of  research  and  development  investments.  In  addition,  we  announced  a  reorganization,  including  a  reduction  in  workforce.  This  reorganization
impacted  110  employees  or  approximately  6%  of  our  global  workforce.  We  completed  the  reorganization  and  recorded  approximately  $6.4  million  in  total
restructuring expenses during 2017.

Key Business Metrics

In  addition  to  the  measures  presented  in  our  consolidated  financial  statements,  we  use  the  following  key  metrics  to  evaluate  our  business,  measure  our

performance, develop financial forecasts, and make strategic decisions.

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Devices sold

Active users

Adjusted EBITDA

Non-GAAP free cash flow

Devices Sold

As of or For the Year Ended
December 31,

2017

2016

(in thousands)

2015

15,343  

25,367  

(52,158)   $

(24,919)   $

22,295  

23,238  

29,985   $

60,080   $

21,355

16,903

389,879

110,691

$

$

Devices  sold  represents  the  number  of  wearable  devices  that  are  sold  during  a  period,  net  of  expected  returns  and  provisions  for  the  Fitbit  Force  recall.
Devices sold does not include sales of accessories. Growth rates between devices sold and revenue are not necessarily correlated because our revenue is affected by
other variables, such as the types of products sold during the period, the introduction of new product offerings with differing U.S. MSRPs, and sales of accessories
and premium services.

Active Users

We define an active user as a registered Fitbit user who, within the three months prior to the date of measurement, has (a) an active Fitbit Coach subscription,
(b) paired a wearable device or Aria scale with his or her Fitbit account, or (c) logged at least 100 steps with a wearable device or a weight measurement using an
Aria scale. The active user number excludes users who have downloaded our mobile apps without purchasing any of our wearable devices and users who have
downloaded free versions of Fitbit Coach but are not subscribers to its paid premium offerings.

The active use metric is intended to provide a snapshot of the potential size and growth of our engaged user community. We believe interest in health and
fitness ebbs and flows and as such, the active user metric is not designed to be a measure of the levels of continuous engagement of our individual users and does
not track the number of individual users that have become inactive on our platform in a period. Instead, the active user metric, as of any given measurement date,
represents an aggregate of both existing and new users who have met the definition of an “active user” on at least one occasion during the previous three months,
whether that user became newly active or was an existing active user from a prior period. Accordingly, this metric does not take into account the extent to which
inactive users are offset by new active users or how long an individual user remains active.

The number of active users is based on activity associated with each Fitbit user account. A user establishes an account with us by registering his or her email
with us at Fitbit.com or through our app. As such, the active user metric reflects the number of Fitbit users who meet our definition of an active user during the
measurement  period;  it  is  not  associated  with  the  particular  device(s)  owned  by a  user.  Accordingly,  a  user  with  multiple  devices  synced  to  his  or  her  account
would only be counted as one active  user. As a percentage  of the active  user metric,  users who logged at least 100 steps with a health  and fitness  tracker  or a
weight measurement using an Aria scale but had an existing user account in a prior quarter increased from 73% as of December 31, 2016 to 79% percent as of
December 31, 2017.

However,  it  is  also  possible  to  have  multiple  active  users  associated  with  a  single  device  at  different  points  in  time,  such  as  with  users  who  acquired  a
refurbished device and with users who acquired a device directly from another user. In such cases, particularly the latter instance, it is also possible that the prior
owner and new owner of a single device could each be counted as unique active users during the same measurement period. However, we believe it is appropriate
to include both new and prior owners of a particular device in the active user metric because the metric is intended to provide a snapshot of the potential size and
growth of our engaged user community during the measurement period. Since both the new and prior owners meet the active user metric, we believe both users
would be appropriately included in the active user metric as both users independently have demonstrated a level of engagement with our devices and platform.

In addition, the active user metric is not intended to be an indicator of device sales in any period, as device sales are reported as a separate metric. We do not
believe that the active user metric has a direct effect on our revenue and operating results since substantially all of our revenue to date has been derived from sales
of our wearable devices. However, we believe the size of our active user population is a potential indicator of future demand from repeat buyers for our devices
and for other future monetization opportunities. We aim to increase the active user metric by developing products, services and content that are compelling for
new, existing, and prior users.

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Activations - Repeat and Re-Activated Users

We define an “Activation” as the first instance of a Fitbit device (excluding Aria, Aria 2, Flyer and other accessories) pairing to a user account during the
three  months  prior  to  the  date  of  measurement.    A  “Repeat  User”  is  defined  as  a  Fitbit  user  who  activated  a  Fitbit  device  to  his  or  her  account  during  the
measurement period and activated a different Fitbit device to his or her account during a prior period. A “Re-Activated User” is defined as Repeat User who has
not synced his or her prior device and taken at least 100 steps for 90 days or more prior to the measurement period with such device.  In the three months ended
December 31, 2017, 32.6% of Activations came from Repeat Users, with Re-Activated Users representing 47.1% of those Repeat Users. In the three months ended
December 31, 2016, 37.2% of Activations came from Repeat Users, with Re-Activated Users representing 36.5% of those Repeat Users.

In  the  twelve  months  ended  December  31,  2017,  36.9%  of  Activations  came  from  Repeat  Users,  with  Re-Activated  Users  representing  41.3%  of  those
Repeat Users. We calculated the full year Activation metric by summing the Activations from Repeat Users and Re-Activated Users in each of the four quarters in
2017. As such, a user who activated more than one Fitbit device to his or her account during the year and had activated a different Fitbit device in a prior year
would count as a Repeat User more than once.

We believe that the Activations metric is a potential indicator of repeat purchase behavior but not a guarantee of repeat purchase behavior.  Actual repeat

purchase behavior may depend on a number of factors, including but not limited to our ability to anticipate and satisfy consumer preferences. 

Adjusted EBITDA

We define adjusted EBITDA as net income adjusted to exclude stock-based compensation expense, depreciation and intangible assets amortization, litigation
expense  related  to  matters  with  Aliphcom,  Inc.  d/b/a  Jawbone,  or  Jawbone,  the  impact  of  our  restructuring  in  2017,  the  impact  of  the  Fitbit  Force  recall,  the
revaluation of our redeemable convertible preferred stock warrant liability prior to our initial public offering, or IPO, change in contingent consideration, interest
income (expense), net, and income tax expense (benefit). See the section titled “Selected Financial Data-Non-GAAP Financial Measures-Adjusted EBITDA” in
this Annual Report on Form 10-K for information regarding our use of adjusted EBITDA and a reconciliation of adjusted EBITDA to net income (loss).

Non-GAAP free cash flow

We define non-GAAP free cash flow as net cash provided by (used in) operating activities less purchase of property and equipment. See the section titled
“Selected Financial Data—Non-GAAP Financial Measures—Non-GAAP free cash flow” in this Annual Report on Form 10-K for information regarding our use of
non-GAAP free cash flow and a reconciliation of non-GAAP free cash flow to net cash provided by (used in) operating activities.

Factors Affecting Our Future Performance

Product Introductions

To date, product introductions have often had a significant, positive impact on our operating results due primarily to increases in revenue associated with
sales of the new products in the quarters following their introduction. Furthermore, new product introductions, or NPI, could also adversely impact the sales of our
existing products to retailers and users. New products may also have higher costs associated with them, which could adversely affect our margins. In addition, we
have incurred higher levels of sales and marketing expenses accompanying each product introduction. In the future, we intend to continue to release new products
and enhance our existing products, and we expect that our operating results will be impacted by these releases.

International Expansion

Our revenue, based on ship-to destinations, from sales outside of the United States increased from 29% of our revenue in 2016 to 42% of our revenue in
2017. We believe our global opportunity is significant, and to address this opportunity, we intend to continue to invest in sales and marketing efforts, distribution
channels, and infrastructure and personnel to support our international expansion, including establishing additional sales offices globally. Our growth will depend
in  part  on  the  adoption  and  sales  of  our  products  and  services  in  international  markets.  Moreover,  our  international  expansion  efforts  have  resulted  and  will
continue to result in increased costs and are subject to a variety of risks, including increased competition, uncertain enforcement of our intellectual property rights,
more complex distribution logistics, and the complexity of compliance with foreign laws and regulations.

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Category Adoption, Expansion of our Total Addressable Market, and Market Growth

As a pioneer of the wearable device market, we believe we have contributed significantly to the market’s growth. However, our future growth depends in
part on the continued consumer adoption of wearable devices as a means to improve health and fitness and the growth of this market. In addition, our long-term
growth depends in part on our ability to expand into adjacent markets in the future.

Competition

The  market  for  wearable  devices  is  both  evolving  and  competitive.  The  wearable  devices  category  has  a  multitude  of  participants,  including  specialized
consumer electronics companies such as Garmin and Nokia, and traditional watch companies such as Fossil and Movado. In addition, many large, broad-based
consumer electronics companies either compete in our market or adjacent markets or have announced plans to do so, including Apple, Google, LG, and Samsung.
For example, Apple sells the Apple Watch, which is a smartwatch with broad-based functionalities, including some health and fitness tracking capabilities, and has
sold a significant volume of its smartwatches since introduction. We also face competition from manufacturers of lower-cost devices, such as Xiaomi and its Mi
Band device. In addition, we compete with a wide range of stand-alone health and fitness-related mobile apps that can be purchased or downloaded through mobile
app stores.

Seasonality

Historically, we have experienced higher revenue in the fourth quarter compared to other quarters due in large part to seasonal holiday demand. For example,
in 2017, 2016 and 2015, our fourth quarter represented 35%, 26% and 38% of our annual revenue, respectively. We also incur higher sales and marketing expenses
during these periods.

Investing in Growth

Our business is in a multi-year transition process where we expect to leverage our core assets of brand, community, and data to focus on four key areas:
adapting to the changing wearable device market; deepening our reach within healthcare; increasing our agility and optimizing our cost structure; and transforming
our business from an episodic driven model centered around device sales to more life time value and recurring revenue. We expect our device mix to continue to
shift towards smartwatches in 2018.  This will benefit average selling price, but will not offset the decline in tracker unit growth.  We expect the device mix shift to
negatively impact gross margins, partially offset by operating efficiencies.  For the full year 2018, operating expenses are expected to decline in absolute dollars as
compared to the full year 2017.  We intend to drive incremental margin on the device side of the business and redeploy capital to grow international sales, Fitbit
Health Solutions and recurring revenue opportunities.

We also expect to leverage the strength of our partners or acquire where necessary to increase speed to market and our ability to scale the business more
effectively. For example, in 2016, we acquired assets from Coin, Pebble and Vector Watch to enhance the features and functionality of our devices, accelerate the
expansion of our platform and ecosystem, and grow our capabilities in lower cost regions of the world.

Furthermore, we intend to increase our focus on the health ecosystem, building relationships with employers, wellness providers, and payers. The corporate
wellness  market  for  wearable  devices  market  is  new  and  is  subject  to  a  variety  of  challenges,  including  whether  employers,  health  systems,  and  payers  will
continue  to  invest  in  such  programs,  long  sales  cycles,  and  substantial  upfront  sales  costs.  In  each  of  2017,  2016,  and  2015,  we  derived  less  than  10%  of  our
revenue from our Fitbit Health Solutions offerings. However, we believe that as healthcare costs continue to rise and as the healthcare ecosystem continues to seek
ways  to  manage  their  costs,  this  represents  an  opportunity  to  grow  revenue.      In  order  to  grow  our  Fitbit  Health  Solutions  presence,  we  intend  to  enhance  our
offerings as well as expand our sales team focused on this market.

Product Quality

We sell complex products and services that could contain design and manufacturing defects in their materials, hardware, and firmware. These defects could
include defective materials or components, or “bugs,” that can unexpectedly interfere with the products’ intended operations or cause injuries to users or property.
Although we extensively  and rigorously  test  new and enhanced  products  and services  before  their  release,  there  can be no assurance  we will be able  to detect,
prevent, or fix all defects. In addition, we utilize products and services provided by third-parties, such as vendors and contract manufacturers, and we rely on their
representations  and  do not  have  full  control  over  their  processes.  Failure  to  detect,  prevent,  or fix  defects,  or  an increase  in defects  could result  in a  variety  of
consequences including a greater number of returns of products than expected from users and retailers, increases in warranty costs, regulatory proceedings, product
recalls, and litigation, which could harm our revenue and operating results.

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Components of our Operating Results

Revenue

We generate substantially all of our revenue from the sale of our wearable devices, which includes both connected health and fitness devices and accessories

and smartwatches. We also generate a small portion of our revenue from our subscription-based Fitbit Coach services and from our corporate wellness programs.

Cost of Revenue

Cost of revenue consists of product costs, including costs of contract manufacturers for production, shipping and handling costs, warranty replacement costs,
packaging, costs related to the Fitbit Force recall, fulfillment costs, manufacturing and tooling equipment depreciation, warehousing costs, write-downs of excess
and  obsolete  inventory,  amortization  of  developed  technology  intangible  assets  acquired,  and  certain  allocated  costs  related  to  management,  facilities,  and
personnel-related  expenses  and other  expenses  associated  with  supply chain  logistics.  Personnel-related  expenses  include  salaries,  bonuses, benefits,  and stock-
based compensation.

Operating Expenses

Operating expenses consist of research and development, sales and marketing, general and administrative expenses, and change in contingent consideration.

Research  and  Development  .  Research  and  development  expenses  consist  primarily  of  personnel-related  expenses,  consulting  and  contractor  expenses,

tooling and prototype materials, and allocated overhead costs.

Substantially all of our research and development expenses are related to developing new products and services and improving our existing products and
services. To date, research and development expenses have been expensed as incurred, because the release of products and services for sale has been short and
development costs qualifying for capitalization have been insignificant.

Sales and Marketing. Sales and marketing expenses represent a significant component of our operating expenses and consist primarily of advertising and
marketing  promotions  of  our  products  and  services  and  personnel-related  expenses,  as  well  as  sales  incentives,  trade  show  and  event  costs,  sponsorship  costs,
consulting and contractor expenses, travel, POP display expenses and related amortization, and allocated overhead costs.

General  and  Administrative  .  General  and  administrative  expenses  consist  of  personnel-related  expenses  for  our  finance,  legal,  human  resources,  and
administrative personnel, as well as the costs of professional services, allocated overhead, information technology, bad debt expense, amortization of intangible
assets acquired, and other administrative expenses.

Change  in  contingent  consideration  .  The  change  in  contingent  consideration  relates  to  the  benefit  received  from  the  reversal  of  a  contingent  liability
incurred in connection with the acquisition of FitStar. See Note 12 of the “Notes to Consolidated Financial Statements-Acquisitions” included elsewhere in this
Annual Report on Form 10-K for additional information.

Interest Income (Expense), Net

Interest income (expense), net consists of interest expense associated with our debt financing arrangements, amortization of debt issuance costs, and interest

income earned on our cash, cash equivalents, and marketable securities.

Other Income (Expense), Net

Other income (expense), net consists of mark-to-market adjustments for the revaluation of our redeemable convertible preferred stock warrant liability prior

to our initial public offering in 2015 and foreign currency gains and losses.

Income Tax Expense (Benefit)

We are subject to income taxes in the United States and foreign jurisdictions in which we do business. These foreign jurisdictions have statutory tax rates
different  from  those  in  the  United  States.  Accordingly,  our  effective  tax  rates  will  vary  depending  on  the  relative  proportion  of  foreign  to  U.S.  income,  the
utilization of foreign tax credits, and changes in tax laws.

On December  22, 2017, the U.S. Tax Cuts and Jobs Act of 2017, or the 2017 Tax Act, was signed into law and includes several  key tax provisions that
affected us, including a reduction of the statutory corporate tax rate from 35% to 21% effective for tax years beginning after December 31, 2017, elimination of
certain deductions, and changes to how the United States imposes income tax on multinational corporations, among others. We are required to recognize the effect
of tax law changes in the period

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of enactment, such as re-measuring our U.S. deferred tax assets and liabilities as well as re-assessing the net realizability of our deferred tax assets. In December
2017, the SEC staff issued Staff Accounting Bulletin No. 118, Income Tax Accounting Implications of the Tax Cuts and Jobs Act, or SAB 118, which allows us to
record provisional amounts during a measurement period not to extend beyond one year of the enactment date. As we complete our analysis of the 2017 Tax Act,
any subsequent adjustments to provisional amounts that we have recorded will be recorded in the period in which the adjustments are made.

Operating Results

The  following  tables  set  forth  the  components  of  our  consolidated  statements  of  operations  for  each  of  the  periods  presented  and  as  a  percentage  of  our

revenue for those periods. The period-to-period comparison of operating results is not necessarily indicative of results for future periods.

Consolidated Statements of Operations Data :

Revenue
Cost of revenue (1)

Gross profit

Operating expenses:

Research and development (1)
Sales and marketing (1)
General and administrative (1)

Change in contingent consideration

Total operating expenses

Operating income (loss)

Interest income (expense), net

Other income (expense), net

Income (loss) before income taxes

Income tax expense (benefit)

Net income (loss)

(1)

Includes stock-based compensation expense as follows:

Cost of revenue 

Research and development

Sales and marketing

General and administrative

Total

Year Ended December 31,

2017

2016

(in thousands)

2015

$

1,615,519   $

2,169,461   $

1,857,998

924,618  

690,901  

1,323,577  

845,884  

343,012  

415,042  

133,934  

—  

891,988  

(201,087)  

3,647  

2,796  

(194,644)  

82,548  

320,191  

491,255  

146,903  

—  

958,349  

(112,465)  

3,156  

14  

(109,295)  

(6,518)  

(277,192)   $

(102,777)   $

956,935

901,063

150,035

332,741

77,793

(7,704)

552,865

348,198

(1,019)

(59,230)

287,949

112,272

175,677

Year Ended December 31,

2017

2016

(in thousands)

2015

5,312   $

4,797   $

54,123  

14,959  

17,187  

47,207  

11,575  

15,853  

91,581   $

79,432   $

4,739

18,251

7,419

10,615

41,024

$

$

$

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Consolidated Statements of Operations Data :

Revenue

Cost of revenue

Gross profit

Operating expenses:

Research and development

Sales and marketing

General and administrative

Change in contingent consideration

Total operating expenses

Operating income (loss)

Interest income (expense), net

Other income (expense), net

Income (loss) before income taxes

Income tax expense (benefit)

Net income (loss)

Revenue

Year Ended December 31,

2017

2016

2015

(as a percentage of revenue)

100 %  

100 %  

100%

57

43

21

26

8

—  

55

(12)

—  

—  

(12)

5

(17)%  

61

39

15

22

7

—  

44

(5)

—  

—  

(5)

—  

(5)%  

52

48

8

18

4

—

30

18

—

(3)

15

6

9%

2017

2016

2015

2017 vs. 2016

2016 vs. 2015

Year Ended December 31,

Revenue

$

1,615,519   $

2,169,461   $

1,857,998   $

$ Change
(in thousands)
(553,942)  

% Change

$ Change

% Change

(26)%   $

311,463  

17%

Revenue decreased $553.9 million , or 26% , from $2.2 billion for 2016 to $1.6 billion for 2017 . Our 2017 results reflect lower demand for our connected
fitness  devices  as  consumers  started  migrating  towards  higher-end  smartwatches,  compared  to  the  same  period  in  2016,  primarily  in  the  United  States.  A
substantial majority of the decrease was due to a 31% decline in the number of devices sold, from 22.3 million in 2016 to 15.3 million in 2017. The decrease was
offset in part by an 8% increase in the average selling price of our devices, from $93.8 for 2016 to $101.3 for 2017, due to favorable product mix primarily from
our special edition devices. Revenue from new product introductions, or NPI, defined as new products shipped in the past 12 months as of December 31, 2017,
decreased by 67% to $498.3 million, or 31% of revenue, in 2017, compared to the same period in the prior fiscal year. NPI revenue for 2017 included Fitbit Ionic,
Fitbit  Alta  HR,  Fitbit  Aria  2  and  Fitbit  Flyer.  Revenue  from  our  direct  channel,  Fitbit.com,  increased  by  11%  to  $167.9  million,  or  10%  of  revenue,  in  2017,
compared to the same period in the prior fiscal year.

Revenue increased $311.5 million , or 17% , from $1.9 billion for 2015 to $2.2 billion for 2016 . A substantial majority of the increase was due to an increase
in the average selling price of our devices of 10% from $85 per device for 2015 to $94 per device for 2016 , due to new products introduced in 2016, partially
offset  by  a  decrease  in  the  average  selling  price  for  certain  legacy  products.  Average  selling  price  was  affected  by  a  $42.2  million  increase  in  rebates  and
promotions to retailers and distributors. Revenue from NPI, defined as new products shipped in the past 12 months as of December 31, 2016, was $1.5 billion, or
70% of revenue, for 2016. NPI revenue for 2016 included Fitbit Charge 2, Fitbit Alta, Fitbit Blaze and Fitbit Flex 2. An increase in the number of devices sold
from 21.4 million in 2015 to 22.3 million in 2016 also contributed to the increase in revenue.

U.S. revenue, based on ship-to destinations, decreased $595.5 million, or 39%, from $1.5 billion for 2016 to $944.1 million for 2017 . International revenue
increased $41.6 million, or 7%, from $629.9 million for 2016 to $671.5 million for 2017, due to increases in revenue of 13% in the EMEA region and 6% in the
Americas excluding the United States region, partially offset by a decrease in revenue of 12% in the APAC region.

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U.S. revenue, based on ship-to destinations, increased $158.4 million, or 11%, from $1.4 billion for 2015 to $1.5 billion for 2016, and international revenue,
based  on  ship-to  destinations,  increased  by  $153.1  million,  or  32%,  from  $476.8  million  for  2015  to  $629.9  million  for  2016,  primarily  due  to  an  increase  in
revenue from the EMEA region of 86%, partially offset by a decrease in revenue in the APAC region of 26%.

For the full year 2018, we expect revenue to decrease as compared to the full year 2017.

Cost of Revenue

2017

2016

2015

2017 vs. 2016

2016 vs. 2015

Year Ended December 31,

$ Change
(in thousands)

% Change

$ Change

% Change

Cost of revenue

$

924,618

  $

1,323,577

  $

956,935

  $

(398,959)  

Gross profit

Gross margin

690,901

845,884

901,063

(154,983)  

43%  

39%  

48%    

(30)%   $

(18)%  

366,642  

(55,179)  

38 %

(6)%

Cost of revenue  decreased  $399.0 million , or 30% , from $1.3 billion for  2016 to  $924.6 million for  2017.  The  decrease  was  primarily  due  to  the  31%
decline in the number of devices sold during 2017, a decrease in excess manufacturing capacity costs, a decrease in excess and obsolete inventory write-downs for
certain legacy products, a decrease in accelerated depreciation of manufacturing and tooling equipment, and by lower warranty costs. Gross margin increased to
43% for 2017 from 39% for 2016 primarily due to the significant drop in demand that occurred in the fourth quarter of 2016, causing us to incur significant excess
manufacturing capacity costs, excess and obsolete inventory write-downs for certain legacy products, and accelerated depreciation of manufacturing and tooling
equipment in 2016, combined with lower warranty costs in 2017. In 2017, we also benefited from an initiative to improve our forecasting accuracy that reduced our
exposure to the above described significant costs that we experienced during the fourth quarter of 2016.

Cost of revenue increased $366.6 million , or 38% , from $956.9 million for 2015 to $1.3 billion for 2016. The increase was primarily due to an increase in

the average cost per device related to new products introduced in 2016, an increase  in the number of devices sold, an increase in actual and estimated costs of
warranty claims on legacy products of $108.5 million, and as a result of a decrease in demand, a charge for liabilities to our contract manufacturers for excess
components of $59.0 million, and accelerated depreciation of manufacturing and tooling equipment of $19.0 million. Gross margin decreased from 48% for 2015
to 39% for 2016. Gross margin for 2016 was primarily affected by an increase in actual and estimated costs of warranty claims for legacy products, a charge for
liabilities to our contract manufacturers for excess components, an increase in rebates and promotions to retailers and distributors, and accelerated depreciation of
manufacturing and tooling equipment, which decreased gross margin by 4%, 3%, 2%, and 1%, respectively. These decreases in gross margin were partially offset
by reduced costs on certain warranty replacement units, which increased gross margin by 1%.

Research and Development

2017

2016

2015

2017 vs. 2016

2016 vs. 2015

Year Ended December 31,

Research and development

$

343,012   $

320,191   $

150,035   $

$ Change
(in thousands)
22,821  

% Change

$ Change

% Change

7%   $

170,156  

113%

Research and development expenses increased $22.8 million , or 7% , from $320.2 million for 2016 to $343.0 million for 2017. The increase was primarily
due to an increase  of $27.3 million  in personnel-related  expenses due to a 7% increase  in headcount, a $8.1 million  increase  in allocated  overhead,  and a $3.6
million increase in third-party hosting costs, partially offset by a decrease of $13.8 million in consulting and contractor expenses and a $1.1 million decrease in
tooling and prototype material costs.

Research  and  development  expenses  increased  $170.2  million  ,  or  113% ,  from  $150.0  million  for  2015  to  $320.2  million  for  2016.  The  increase  was

primarily due to a $95.3 million increase in personnel-related expenses due to a 71% increase in headcount, a $41.1 million increase in allocated overhead, a $12.8
million increase in consultant and contractor expenses, an $11.7 million increase in tooling and prototype materials, a $4.4 million increase in travel expenses, and
a $3.6 million increase in expenses for third-party hosting services.

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For  the  full  year  2018,  we  expect  research  and  development  expenses  to  remain  relatively  consistent  in  absolute  dollars  and  increase  as  a  percentage  of

revenue as compared to the full year 2017.

Sales and Marketing

2017

2016

2015

2017 vs. 2016

2016 vs. 2015

Year Ended December 31,

Sales and marketing

$

415,042   $

491,255   $

332,741   $

$ Change
(in thousands)
(76,213)  

% Change

$ Change

% Change

(16)%   $

158,514  

48%

Sales and marketing expenses decreased $76.2 million , or 16% , from $491.3 million for 2016 to $415.0 million for 2017. The decrease was primarily due to
a  $103.9  million  decrease  in  advertising  and  marketing  expense  and  a  $8.5  million  decrease  in  consulting  and  contractor  expenses,  partially  offset  by  a  $16.9
million increase in personnel-related expenses due to a 11% increase in headcount, a $9.7 million increase in allocated overhead, a $7.2 million increase in sales
transaction expenses, and a $3.6 million increase in expenses for purchased software.

Sales and marketing expenses increased $158.5 million , or 48% , from $332.7 million for 2015 to $491.3 million for 2016. The increase was primarily due
to  a  $98.2  million  increase  in  expenses  associated  with  advertising  costs  and  other  marketing  programs,  driven  by  the  launch  of  media  campaigns  for  the  new
products  introduced  during  2016.  The  increase  was  also  due  to  a  $52.3  million  increase  in  consulting  and  contractor  expenses,  a  $20.5  million  increase  in
personnel-related expenses due to a 48% increase in headcount, and a $4.6 million increase in expenses for purchased software, partially offset by an $18.1 million
decrease in allocated overhead.

For  the  full  year  2018,  we  expect  sales  and  marketing  expenses  to  decrease  in  absolute  dollars  and  remain  relatively  consistent  as  a

percentage of revenue as compared to the full year 2017.

General and Administrative

2017

2016

2015

2017 vs. 2016

2016 vs. 2015

Year Ended December 31,

General and administrative

$

133,934   $

146,903   $

77,793   $

$ Change

% Change

$ Change

% Change

(in thousands)
(12,969)  

(9)%   $

69,110  

89%

General and administrative expenses decreased $13.0 million , or 9% , from $146.9 million for 2016 to $133.9 million for 2017. The decrease was primarily
due to a $23.9 million decrease in legal fees primarily due to decreased litigation expense as a result of our global settlement of all outstanding civil litigation with
Jawbone, and a $4.1 million decrease in consulting and contractor expense, partially offset by a $11.0 million increase in personnel-related expenses due to an 8%
increase in headcount, and a $7.6 million increase in bad debt expense resulting from Wynit’s bankruptcy filing.

General and administrative expenses increased $69.1 million , or 89% , from $77.8 million for 2015 to $146.9 million for 2016. The increase was primarily
due to a $31.1 million increase in legal fees, a $20.3 million increase in personnel-related expenses due to a 48% increase in headcount, a $12.5 million increase in
consulting and contractor expenses, a $3.1 million increase in other administrative expenses and travel expenses, and a $3.2 million increase in allocated overhead.

For the full year 2018, we expect general and administrative expenses to decrease in absolute dollars and decrease as a percentage of revenue as compared to

the full year 2017.

Change in Contingent Consideration

Change in contingent consideration

$

—   $

—   $

(7,704)   $

—  

7,704

2017

2016

2015

2017 vs. 2016

2016 vs. 2015

Year Ended December 31,

(in thousands)

$ Change

$ Change

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The change in contingent consideration benefit of $7.7 million for 2016 is a result of our re-measurement of the contingent consideration liability related to

our acquisition of FitStar in 2015. This is a non-recurring benefit. The terms of the contingent liability expired as of December 31, 2015.

Interest and Other Income (Expense), Net

2017

2016

2015

2017 vs. 2016

2016 vs. 2015

$ Change

% Change

$ Change

% Change

Year Ended December 31,

Interest income (expense), net

$

3,647   $

3,156   $

(1,019)   $

(in thousands)
491  

16%   $

Other income (expense), net

2,796  

14  

(59,230)  

2,782  

19,871%  

4,175  

59,244  

(410)%

(100)%

Interest income, net increased $0.5 million , or 16% , from $3.2 million for 2016 to $3.6 million for 2017, primarily due to higher interest earned on cash,
cash equivalents, and marketable securities, offset in part by the net write-down of deferred financing costs resulting from the May 2017 amendment of our Senior
Facility  that  reduced  our  borrowing  capacity  from  $250.0  million  to  $100.0  million.  Other  income,  net  increased  $2.8  million  primarily  due  to  an  increase  in
foreign currency gains.

Interest income (expense), net increased $4.2 million , or 410% , from expense of $1.0 million for 2015 to income of $3.2 million for 2016. The increase was
primarily  due  to  interest  earned  on  our  cash,  cash  equivalents,  and  marketable  securities.  Other  expense,  net,  increased  $59.2  million  ,  from  expense  of
$59.2 million for 2015 to $14,000 for 2016. The increase in other income (expense), net was primarily due to a decrease of $56.7 million in charges related to the
revaluation of our convertible preferred stock warrant liability as the liability is no longer outstanding subsequent to our IPO, and an increase in foreign currency
gains of $3.7 million.

Income Tax Expense (Benefit)

2017

2016

2015

2017 vs. 2016

2016 vs. 2015

Year Ended December 31,

$ Change

% Change

$ Change

% Change

(in thousands)

Income tax expense (benefit)

$

82,548

  $

(6,518)

  $

112,272

  $

89,066  

(1,366)%   $

(118,790)  

(106)%

Effective tax rate

(42.4)%  

6.0%  

39.0%    

Income tax expense increased $89.1 million , from a benefit of $6.5 million for 2016 to an expense of $82.5 million for 2017. Our effective tax rate was
(42.4)% and 6.0% for 2017 and 2016, respectively. The increase in income tax expense for 2017 was primarily due to establishment of a full valuation allowance
on our U.S. deferred tax assets, partially offset by an anticipated carryback of losses incurred in 2017.

Income tax expense decreased $(118.8) million from expense of $112.3 million for 2015 to a benefit of $6.5 million for 2016. Our effective tax rate was
6.0% and 39.0% for 2016 and 2015, respectively. The decrease in income tax expense and effective tax rate for 2016 was primarily due to shift in geographic mix
of profits  before tax, increased  losses in certain  foreign  jurisdictions  for which a tax benefit  may not be realized,  and an increase  in U.S. tax benefits  from tax
credits resulting from the increase in research and development expenses.

Liquidity and Capital Resources

Our operations have been financed primarily through cash flow from operating activities, net proceeds from the sale of our equity securities, and borrowings
under  our  credit  facilities.  As  of  December  31,  2017  ,  we  had  cash  and  cash  equivalents  of  $342.0  million  and  marketable  securities  of  $337.3  million  ,
approximately 87% of which are held on-shore by a U.S. legal entity.

Of  our  total  cash,  cash  equivalents,  and  marketable  securities,  $87.5  million  is  held  by  our  foreign  subsidiaries.  Our  intent  is  to  indefinitely  reinvest  our
earnings from foreign operations and current plans do not anticipate that we will require funds generated from foreign operations to fund our domestic operations.
In the event funds from foreign operations are needed to fund operations in the United States in the future, we may be required to accrue and pay additional taxes
on repatriated funds at that time.

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We  believe  our  existing  cash,  cash  equivalent,  and  marketable  securities  balances,  and  cash  flow  from  operations  will  be  sufficient  to  meet  our  working
capital and capital expenditure needs for at least the next 12 months. Our future capital requirements may vary materially from those currently planned and will
depend on many factors, including our levels of revenue, the timing and extent of spending on research and development efforts and other business initiatives, the
expansion  of  sales  and  marketing  activities,  the  timing  of  new  product  introductions,  market  acceptance  of  our  products,  acquisitions,  and  overall  economic
conditions. To the extent that current and anticipated future sources of liquidity are insufficient to fund our future business activities and requirements, we may be
required to seek additional equity or debt financing. The sale of additional equity would result in additional dilution to our stockholders. The incurrence of debt
financing would result in debt service obligations and the instruments governing such debt could provide for operating and financing covenants that would restrict
our operations.

Credit Facility

In  December  2015,  we  entered  into  a  second  amended  and  restated  credit  agreement,  or  the  Senior  Facility,  with  Silicon  Valley  Bank,  or  SVB,  as
administrative agent, collateral agent, and lender, SunTrust Bank as syndication agent, SunTrust Robinson Humphrey, Inc. and several other lenders to replace the
then existing asset-based credit facility and cash flow facility. The Senior Facility allowed us to borrow up to $250.0 million, including up to $50.0 million for the
issuance  of  letters  of  credit  and  up  to  $25.0  million  for  swing  line  loans,  subject  to  certain  financial  covenants  and  ratios.  We  have  the  option  to  repay  our
borrowings  under  the  Senior  Facility  without  penalty  prior  to  maturity.  The  Senior  Facility  requires  us  to  comply  with  certain  financial  and  non-financial
covenants.  The  Senior  Facility  contains  customary  covenants  that  restrict  our  ability  to,  among  other  things,  incur  additional  indebtedness,  sell  certain  assets,
guarantee certain obligations of third parties, declare dividends or make certain distributions, and undergo a merger or consolidation or certain other transactions.
Obligations under the Senior Facility are collateralized by substantially all of our assets, excluding our intellectual property.

In May 2017, we entered  into a first  amendment  to the Senior Facility,  or the  First Amendment,  pursuant  to which the aggregate  amount  we can borrow
under the Senior Facility was reduced from $250.0 million to $100.0 million, with up to $50.0 million available for the issuance of letters of credit and up to $25.0
million available for swing line loans. In addition, pursuant to the First Amendment, the applicable margin in respect of the interest rates under the Senior Facility
was amended to be based on our level of liquidity (defined as the sum of our aggregate cash holdings and the amount available under our revolving commitments)
and  range  from,  with  respect  to  Alternate  Base  Rate  loans,  0.5%  to  1.0%,  and,  with  respect  to  LIBOR  loans,  1.5%  to  2.0%.  Among  other  changes,  the  First
Amendment also removed the fixed charge coverage ratio covenant and the consolidated leverage ratio covenant, and added a general liquidity covenant requiring
us to maintain liquidity of at least $200.0 million in unrestricted  cash, of which $100.0 million in cash or cash equivalents must be held in accounts subject to
control agreements with, and maintained by, SVB or its affiliates.

We were in compliance with the financial covenants under the Senior Facility, as amended, as of December 31, 2017. As of December 31, 2017, we had no
outstanding borrowings under the Senior Facility, as amended, and had outstanding letters of credit of $36.9 million issued to cover various security deposits on
our facility leases.

Cash Flows

The following table summarizes our cash flows for the periods indicated:

Net cash provided by (used in):

Operating activities

Investing activities

Financing activities

Net change in cash and cash equivalents

Cash Flows from Operating Activities

Year Ended December 31,

2017

2016

(in thousands)

2015

$

$

64,241   $

138,720   $

(28,718)  

4,635  

(392,666)  

19,794  

40,158   $

(234,152)   $

141,257

(170,027)

368,953

340,183

Net cash provided by operating activities of $64.2 million for 2017 was primarily due to a decrease in net change in operating assets and liabilities of $1.1
million,  which  consisted  of  a  decrease  in  inventory  as  a  result  of  lower  inventory  purchases  which  decreased  accounts  payable  and  decreased  accrued
manufacturing expense and freight (included in accrued liabilities) as a result of lower operating activity during 2017, a decrease in account receivables resulting
from  higher  collections  and  from  taking  a  full  reserve  on  Wynit’s  outstanding  account  receivables,  offset  by  an  increase  in  prepaid  expenses  and  other  assets
primarily from an

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increase in income tax receivable due to expected refunds from prior tax years and from an insurance receivable due to a litigation settlement. The net change in
operating assets and liabilities was also impacted by non-cash adjustments of $340.3 million, primarily resulting from a valuation allowance recorded against our
U.S. deferred tax assets of $173.8 million, stock-based compensation expense of $91.6 million, depreciation and amortization expense of $45.7 million, provision
for inventory obsolescence of $14.8 million, and provision for doubtful accounts of $7.9 million, partially offset by a net loss of $277.2 million. Our days sales
outstanding in accounts receivable, calculated as the number of days represented by the accounts receivable balance as of period end, decreased from 85 days as of
December 31, 2016 to 76 days as of December 31, 2017 due to higher collections during the fourth quarter of 2017 compared to the fourth quarter of 2016.

Net cash provided  by operating  activities  of  $138.7 million for  2016 was primarily  due  to  an  increase  in  net  change  in  operating  assets  and  liabilities  of
$199.2  million  and  non-cash  adjustments  of  $42.3  million,  partially  offset  by  a  net  loss  of  $102.8  million.  The  increase  in  net  change  in  operating  assets  and
liabilities was primarily due to a $259.0 million increase in accounts payable and accrued liabilities, largely driven by increases in the product warranty reserve,
sales rebates accruals, and reserves for excess components, partially offset by a $62.0 million increase in inventories, a $37.9 million increase in prepaid expenses
and other assets, and an $8.7 million increase in accounts receivable. Non-cash adjustments primarily consisted of stock-based compensation expense, depreciation
and amortization, and the abandonment of property and equipment, partially offset by deferred taxes. Our days sales outstanding in accounts receivable increased
from  56 days  as  of  December  31,  2015 to  85  days  as  of  December  31,  2016  due  to  slower  collections  in  the  fourth  quarter  of  2016 as  compared  to  the  fourth
quarter of 2015.

Net cash provided by operating activities of $141.3 million for 2015 was primarily due to net income of $175.7 million and non-cash adjustments of $76.6
million,  partially  offset  by  a  decrease  in  net  change  in  operating  assets  and  liabilities  of  $111.1  million.  Non-cash  adjustments  primarily  consisted  of  the
revaluation of the redeemable convertible preferred stock warrant liability, stock-based compensation expense, and depreciation and amortization, partially offset
by  deferred  taxes.  The  decrease  in  net  change  in  operating  assets  and  liabilities  was  primarily  due  to  a  $231.1  million  increase  in  accounts  receivable  due  to
increased  sales  in  the  fourth  quarter  of  2015,  and  a  $68.1  million  increase  in  inventories  as  a  result  of  increased  product  demand,  partially  offset  by  a  $195.5
million increase in accounts payable and accrued liabilities related to growth of expenditures to support general business growth.

Cash Flows from Investing Activities

Net cash used in investing activities for 2017 of $28.7 million was primarily due to maturities and sales of marketable securities of $664.9 million, partially
offset by purchases of marketable securities of $597.9 million, purchases of property and equipment of $89.2 million, an equity investment of $6.0 million, and an
asset purchase of $0.6 million.

Net cash used in investing activities for 2016 of $392.7 million was due to the purchases of marketable securities of $638.1 million, partially offset by the
sale  and  maturities  of  marketable  securities  of  $362.3  million,  purchases  of  property  and  equipment  of  $78.6  million,  and  the  cash  portion  of  acquisitions  of
$38.3 million, net of cash acquired.

Net cash used in investing activities for 2015 of $170.0 million was due to the purchases of marketable securities of $230.9 million, purchases of property
and equipment of $30.6 million, and the cash portion of the acquisition of FitStar of $11.0 million, net of cash acquired, partially offset by the sale and maturities
of marketable securities of $102.5 million.

We may continue to use cash in the future to acquire businesses and technologies that enhance and expand our product offerings. Due to the nature of these
transactions, it is difficult to predict the amount and timing of such cash requirements to complete such transactions. We may be required to raise additional funds
to complete future acquisitions.

Cash Flows from Financing Activities

Net cash provided by financing activities for 2017 of $4.6 million was primarily due to $19.0 million of proceeds from the exercise of stock options and
stock purchases made through our 2015 Employee Stock Purchase Plan, or the 2015 ESPP, offset in part by $14.4 million in net cash used for payment of taxes on
common stock issued under our employee equity incentive plans.

Net  cash  provided  by  financing  activities  for  2016  of  $19.8 million was  primarily  related  to  net  proceeds  from  the  issuance  of  common  stock  related  to

employee equity incentive plans of $21.0 million.

Net cash provided by financing  activities  for 2015 of $369.0 million was primarily  related  to proceeds from our public stock offerings  of $505.3 million

partially offset by net repayments of borrowings of $134.5 million under our credit facilities.

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Contractual Obligations and Other Commitments

The following table summarizes our non-cancelable contractual obligations as of December 31, 2017 :

Operating leases (1)

$

272,198   $

40,856   $

89,655   $

82,808   $

58,879

Total

Less than
1 Year

Payments Due By Period

1-3
Years

(in thousands)

3-5
Years

More than
5 Years

Total

272,198   $
(1) We lease our facilities under long-term operating leases, which expire at various dates through June 2024. The lease agreements frequently include provisions which require us to pay

40,856   $

89,655   $

82,808   $

58,879

$

taxes, insurance, or maintenance costs.

Purchase  orders  or  contracts  for  the  purchase  of  certain  goods  and  services  are  not  included  in  the  above  table.  The  aggregate  amount  of  open  purchase
orders as of December 31, 2017 was approximately $157.7 million . We cannot determine the aggregate amount of such purchase orders that represent contractual
obligations because purchase orders may represent authorizations to purchase rather than binding agreements. Our purchase orders are based on our current needs
and  are  fulfilled  by  our  suppliers,  contract  manufacturers,  and  logistics  providers  within  short  periods  of  time.  We  subcontract  with  other  companies  to
manufacture our products.

During the normal course of business, we and our contract manufacturers procure components based upon a forecasted production plan. If we cancel all or
part  of  the  orders,  or  materially  reduce  forecasted  orders,  we  may  be  liable  to  our  suppliers  and  contract  manufacturers  for  the  cost  of  the  excess  components
purchased by our contract manufacturers. As of December 31, 2017 , approximately $21.8 million was accrued for such liabilities to contract manufacturers.

The table above excludes the liability for uncertain tax positions of $29.9 million as of December 31, 2017 , due to the uncertainty of when the related tax

settlements will become due.

Off-Balance Sheet Arrangements

We have not entered into any off-balance sheet arrangements and do not have any holdings in variable interest entities.

Critical Accounting Polices and Estimates

Our management’s discussion and analysis of our financial condition and results of operations is based on our consolidated financial statements, which have
been prepared in accordance with U.S. GAAP. The preparation of these consolidated financial statements requires us to make estimates and assumptions that affect
the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements, as well as the reported
revenue generated and expenses incurred during the reporting periods. Our estimates are based on our historical experience and on various other factors that we
believe are reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities that are
not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions. We believe that the accounting
policies  discussed  below  are  critical  to  understanding  our  historical  and  future  performance,  as  these  policies  relate  to  the  more  significant  areas  involving
management’s estimates, assumptions, and judgments.

Revenue Recognition

We generate substantially all of our revenue from the sale of our wearable devices, which includes both connected health and fitness devices and accessories
and smartwatches. We also generate a small portion of our revenue from our subscription-based services. We recognize revenue when persuasive evidence of an
arrangement exists, delivery has occurred, the sales price is fixed or determinable, and collection is reasonably assured. We consider delivery of our products to
have occurred once title and risk of loss has been transferred. For customers where transfer of risk of loss is at the customer’s destination, we use estimates to defer
sales at the end of the reporting period based on historical experience of average transit time. We recognize revenue, net of estimated sales returns, sales incentives,
discounts, and sales tax. We generally recognize revenue for products sold through retailers and distributors on a sell-in basis.

We enter into multiple element arrangements that include hardware, software, and services. The first deliverable is the hardware and firmware essential to
the  functionality  of  our  connected  health  and  fitness  devices  and  smartwatches  delivered  at  the  time  of  sale.  The  second  deliverable  is  the  software  services
included with the products, which are provided free of charge and enables users to sync, view, and access real-time data on our online dashboard and mobile apps.
The third deliverable is the embedded right included with the purchase of the device to receive, on a when-and-if-available basis, future unspecified firmware

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upgrades  and  features  relating  to  the  product’s  essential  firmware.  In  addition,  we  occasionally  offer  a  fourth  deliverable  in  bundled  arrangements  that  allows
access to certain subscription-based services related to our Fitbit Coach offering.

We  allocate  revenue  to  all  deliverables  based  on  their  relative  selling  prices.  We  use  a  hierarchy  to  determine  the  selling  price  to  be  used  for  allocating
revenue to deliverables: (i) vendor-specific objective evidence, or VSOE, of fair value, (ii) third-party evidence, or TPE, and (iii) best estimate of the selling price,
or BESP, of selling price. Our process for determining BESP considers multiple factors including consumer behaviors and our internal pricing model and may vary
depending  upon  the  facts  and  circumstances  related  to  each  deliverable.  BESP  for  our  connected  health  and  fitness  devices  and  smartwatches  and  unspecified
upgrade  rights  reflect  our  best  estimate  of  the  selling  prices  if  they  were  sold  regularly  on  a  stand-alone  basis  and  comprise  the  majority  of  the  arrangement
consideration. BESP for upgrade rights currently ranges from $1 to $3. TPE for our online dashboard and mobile apps is currently estimated at $0.99. VSOE for
access to Fitbit Coach subscription-based services is based on the price charged when sold separately.

Amounts allocated to the delivered health and fitness devices are recognized at the time of delivery, provided the other conditions for revenue recognition
have been met. Amounts allocated to our online dashboard and mobile apps and unspecified upgrade rights are deferred and recognized on a straight-line basis
over the estimated usage period.

We offer our users the ability to purchase subscription-based services, through which our users receive incremental  features, including access to a digital
personal trainer, in-depth analytics regarding the user’s personal metrics, or video-based customized workouts. Amounts paid for subscriptions are deferred and
recognized ratably over the service period which is typically one year. Revenue from subscription-based  premium services was less than 1% of revenue for all
periods presented.

In addition, we offer access to software and services to certain customers in the corporate wellness program, which includes distribution capabilities, a real-
time dashboard, and support services. We are currently unable to establish VSOE or TPE for the corporate wellness software and services. BESP for the corporate
wellness software and services is determined based on our internal pricing model for anticipated renewals for existing customers and pricing for new customers.
Revenue allocated to the corporate wellness software and services is deferred and recognized on a straight-line basis over the estimated access period of one year,
which is the typical service period. Revenue from the corporate wellness software and services was less than 1% of revenue for all periods presented.

We  account  for  shipping  and  handling  fees  billed  to  customers  as  revenue.  Sales  taxes  and  value  added  taxes  collected  from  customers  are  remitted  to

governmental authorities, are not included in revenue, and are reflected as a liability on our consolidated balance sheets.

Rights of Return, Stock Rotation Rights, and Price Protection

We offer limited rights of return, stock rotation rights, and price protection under various policies and programs with our retailer and distributor customers

and end-users. Below is a summary of the general provisions of such policies and programs:

•  Retailers and distributors are generally allowed to return products that were originally sold through to an end-user under provisions of their contracts,

called “open-box” returns, and such returns may be made at any time after the original sale.
•  All purchases through Fitbit.com are covered by a 45-day right of return.
•  Certain  distributors  are  allowed  stock  rotation  rights  which  are  limited  rights  of  return  of  products  purchased  during  a  prior  period,  generally  one

quarter.

•  Certain distributors and retailers are allowed return rights for defective products.
•  Certain distributors are offered price protection that allows for the right to a partial credit for unsold inventory held by the distributor if we reduce the

selling price of a product.

We  estimate  reserves  for  these  policies  and  programs  based  on  historical  experience  and  record  the  reserves  as  a  reduction  of  revenue  and  accounts
receivable. Through December 31, 2017 , actual returns have primarily been open-box returns. In addition, through December 31, 2017, we have had limited price
protection claims. On a quarterly basis, the amount of revenue that is reserved for future returns is calculated based on historical trends and data specific to each
reporting  period. The historical  trends consider product life cycles, new product introductions,  market  acceptance  of products, product sell-through,  the type of
customer, seasonality, and other factors. Return rates can fluctuate over time, but have been sufficiently predictable to allow us to estimate expected future product
returns.  We  review  the  actual  returns  evidenced  in  prior  quarters  as  a  percent  of  related  revenue  to  determine  the  historical  rate  of  returns.  We  then  apply  the
historical rate of returns to the current period revenue as a basis for estimating future returns. When necessary, we also provide a specific reserve for products in
the distribution channel in excess of estimated requirements. This estimate can be affected by the amount of a particular product in the channel, the rate of sell-
through, product plans, and other factors. We also consider whether there are circumstances which may result in anticipated returns higher than the historical return
rate from direct customers and record an additional specific reserve as necessary. The estimates and assumptions

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used to reserve for rights of return, stock rotation rights, and price protection have been accurate in all material respects and have not materially changed in the
past.

Sales Incentives

We offer sales incentives such as cooperative advertising and marketing development fund programs, rebates, and other incentives. We record cooperative
advertising and marketing development fund programs with customers as a reduction to revenue unless we receive an identifiable benefit in exchange for credits
claimed by the customer and can reasonably estimate the fair value of the identifiable benefit received, in which case we will record it as a marketing expense. We
recognize  a  liability  with  a  reduction  to  revenue  for  rebates  or  other  incentives  based  on  the  estimated  amount  of  rebates  or  credits  that  will  be  claimed  by
customers.

Inventories

Inventories consist of finished goods and component parts, which are purchased from contract manufacturers and component suppliers. Inventories are stated
at the lower of cost or net realizable value. We assess the valuation of inventory and periodically write down the value for estimated excess and obsolete inventory
based upon estimates of future demand and market conditions.

Product Warranty

We offer a standard product warranty that our products will operate under normal use for a period of one-year from the date of original purchase, except in
the European Union and certain Asia Pacific countries where we provide a two-year warranty. We have the obligation, at our option, to either repair or replace a
defective product. At the time revenue is recognized, an estimate of future warranty costs is recorded as a component of cost of revenues. The estimate of future
warranty costs is based on historical and projected warranty claim rates, historical and projected cost-per-claim and knowledge of specific product failures, if any,
that  are  outside  of  our  typical  experience.  We  regularly  review  these  estimates  to  assess  the  appropriateness  of  our  recorded  warranty  liabilities  and  adjust  the
amounts as necessary. Factors that affect the warranty obligation include product failure rates, service delivery costs incurred in correcting the product failures, and
warranty  policies.  Our  products  are  manufactured  by  contract  manufacturers,  and  in  certain  cases,  we  may  have  recourse  against  such  contract  manufacturers.
Should  actual  product  failure  rates,  use  of  materials  or  other  costs  differ  from  our  estimates,  additional  warranty  liabilities  could  be  incurred,  which  could
materially affect our results of operations. The estimates and assumptions used to reserve for product warranty have been accurate in all material respects and have
not materially changed in the past.

Business Combinations, Goodwill, and Intangible Assets

We allocate the fair value of purchase consideration to tangible assets, liabilities assumed, and intangible assets acquired based on their estimated fair values.
The excess of the fair value of purchase consideration over the fair values of these identifiable assets and liabilities is allocated to goodwill. The allocation of the
purchase  consideration  requires  management  to  make  significant  estimates  and  assumptions,  especially  with  respect  to  intangible  assets.  These  estimates  can
include, but are not limited to, future expected cash flows of acquired customers, acquired technology, and trade names from a market participant perspective, and
estimates of useful lives, and discount rates. Management’s estimates of fair value are based upon assumptions believed to be reasonable, but which are inherently
uncertain and unpredictable and, as a result, actual results may differ from estimates. During the measurement period, which is up to one year from the acquisition
date, we may record adjustments to the assets acquired and liabilities assumed, with the corresponding offset to goodwill. Upon the conclusion of the measurement
period, any subsequent adjustments are recorded to earnings.

We assess goodwill for impairment at least annually during the fourth quarter and whenever events or changes in circumstances indicate that the carrying
value of the asset may not be recoverable. Consistent with our determination that we have one operating segment, we have determined that there is one reporting
unit and test goodwill for impairment at the entity level. We test goodwill using the two-step process in accordance with ASC 350,  Intangibles—Goodwill and
Other . In the first step, we compare the carrying amount of the reporting unit to the fair value based on the fair value of our common stock. If the fair value of the
reporting unit exceeds the carrying value, goodwill is not considered impaired and no further testing is required. If the carrying value of the reporting unit exceeds
the fair value, goodwill is potentially impaired and the second step of the impairment test must be performed. In the second step, we would compare the implied
fair value of the goodwill, as defined by ASC 350, to its carrying amount to determine the amount of impairment loss, if any. We tested goodwill for impairment as
of October 31, 2017 and 2016, and the fair value of our reporting unit exceeded the carrying value. We considered other factors in the performance of the annual
goodwill impairment test in the fourth quarter of 2017, including assumptions about expected future revenue forecasts, changes in the overall economy, trends in
our stock price, and other operating conditions.  It is reasonably possible that we could perform significantly below our expectations or a deterioration of market
and  economic  conditions  could  occur.  This  would  adversely  impact  our  ability  to  meet  our  projected  results,  which  could  cause  our  goodwill  to  become
impaired. If we determine that our goodwill is impaired,

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we would be required to record a non-cash charge that could have a material adverse effect on our results of operations and financial position.

Acquired finite-lived  intangible assets are amortized over their estimated useful lives. We evaluate the recoverability  of our intangible assets for possible
impairment whenever events or circumstances indicate that the carrying amount of such assets may not be recoverable. Recoverability of these assets is measured
by  a  comparison  of  the  carrying  amounts  to  the  future  undiscounted  cash  flows  the  assets  are  expected  to  generate.  If  such  review  indicates  that  the  carrying
amount  of  intangible  assets  is  not  recoverable,  the  carrying  amount  of  such  assets  is  reduced  to  fair  value.  We  have  not  recorded  any  such  impairment  charge
during the years presented.

Income Taxes

We utilize the asset and liability method of accounting for income taxes, which requires the recognition of deferred tax assets and liabilities for expected
future  consequences  of  temporary  differences  between  the  financial  reporting  and  income  tax  bases  of  assets  and  liabilities  using  enacted  tax  rates.  We  make
estimates,  assumptions,  and  judgments  to  determine  our  expense  (benefit)  for  income  taxes  and  also  for  deferred  tax  assets  and  liabilities  and  any  valuation
allowances recorded against our deferred tax assets. We assess the likelihood that our deferred tax assets will be recovered from future taxable income and, to the
extent we believe that recovery is not likely, we establish a valuation allowance.

The  calculation  of  our  income  tax  expense  involves  the  use  of  estimates,  assumptions,  and  judgments  while  taking  into  account  current  tax  laws,  our
interpretation of current tax laws, and possible outcomes of future tax audits. We have established reserves to address potential exposures related to tax positions
that  could  be  challenged  by  tax  authorities.  Although  we  believe  our  estimates,  assumptions,  and  judgments  to  be  reasonable,  any  changes  in  tax  law  or  our
interpretation of tax laws and the resolutions of potential tax audits could significantly impact the amounts provided for income taxes in our consolidated financial
statements.

The U.S. Tax Cuts and Jobs Act of 2017 (the “2017 Tax Act”) was enacted on December 22, 2017, and includes several key tax provisions that affected the
Company, including a reduction of the statutory corporate tax rate from 35% to 21% effective for tax years beginning after December 31, 2017, elimination of the
carryback of net operating losses generated after December 31, 2017, and changes to how the United States imposes income tax on multinational corporations,
among others. The 2017 Tax Act requires complex computations to be performed that were not previously required in U.S. tax law, and preparation and analysis of
information not previously required or regularly produced, which require significant judgment in interpreting accounting guidance for such items that is currently
uncertain. In December 2017, the SEC staff issued Staff Accounting Bulletin No. 118, Income Tax Accounting Implications of the Tax Cuts and Jobs Act (“SAB
118”), which allows the Company to record provisional amounts during a measurement period not to extend beyond one year of the enactment date. The Company
has provided its best estimate of the impact of the 2017 Tax Act in its year-end income tax provision in accordance with its understanding of the 2017 Tax Act and
guidance  available  as  of  the  date  of  issuance  of  these  consolidated  financial  statements.  As  the  Company  completes  its  analysis  of  the  2017  Tax  Act,  any
subsequent adjustments to provisional amounts that it has recorded may or may not impact its provision for income taxes in the period in which the adjustments are
made due to a full valuation allowance on its U.S. deferred tax assets. The Company expects to complete its analysis within the measurement period in accordance
with SAB 118.

The  calculation  of  our  deferred  tax  asset  balance  involves  the  use  of  estimates,  assumptions,  and  judgments  while  taking  into  account  estimates  of  the
amounts  and  type  of  future  taxable  income.  Actual  future  operating  results  and  the  underlying  amount  and  type  of  income  could  differ  materially  from  our
estimates, assumptions and judgments, thereby impacting our financial position and operating results.

We include interest and penalties related to unrecognized tax benefits within income tax expense. Interest and penalties related to unrecognized tax benefits

have been recognized in the appropriate periods presented.

Stock-Based Compensation

Stock-based compensation is measured at the grant date based on the fair value of the award and is recognized as expense, over the requisite service period,

which is generally the vesting period of the applicable award.

Determining the fair value of stock-based awards at the grant date requires judgment. The fair value of restricted stock units, or RSUs, is the fair value of our
common stock on the grant date. We use the Black-Scholes option-pricing model to determine the fair value of stock options and warrants and shares issued under
our 2015 ESPP. The determination of the grant date fair value of stock options and warrants and shares issued under our 2015 ESPP using an option-pricing model
is affected by our estimated common stock fair value as well as assumptions regarding a number of variables. These variables include the fair value of our

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common stock, our expected  common stock price  volatility  over the expected life of the stock options and warrants, the expected  term of the stock option and
warrants, risk-free interest rates, and the expected dividends, which are estimated as follows:

Fair Value of Our Common Stock . Prior to our IPO, the fair value of the shares of common stock underlying stock options was historically established by
our board of directors, which was responsible for these estimates, and was based in part upon a valuation provided by an independent third-party valuation firm.
Because  there  was  no  public  market  for  our  common  stock  prior  to  our  IPO,  our  board  of  directors  considered  this  independent  valuation  and  other  factors,
including, but not limited to, revenue growth, the current status of the technical and commercial success of our operations, our financial condition, the stage of our
development, and competition to establish the fair value of our common stock at the time of grant of the stock option. The fair value of the underlying common
stock was determined by the board of directors until our common stock was listed on a stock exchange. For stock options, warrants and RSUs granted subsequent
to our IPO, the fair value was based on the closing price of our Class A common stock as reported on the New York Stock Exchange on the date of grant.

Expected Term . The expected term represents the period over which we anticipate stock-based awards to be outstanding. We do not have sufficient historical
exercise data to provide a reasonable basis upon which to estimate expected term due to the limited period of time stock-based awards have been exercisable. As a
result, for stock options and warrants, we used the simplified method to calculate the expected term estimate based on the vesting and contractual terms of the stock
option. Under the simplified method, the expected term is equal to the average of the stock-based award’s weighted average vesting period and its contractual term.
The expected term of equity awards issued under our 2015 ESPP is the contractual term.

Volatility .  Expected  volatility  is  a  measure  of  the  amount  by  which  the  stock  price  is  expected  to  fluctuate.  We  estimate  the  expected  volatility  of  the
common stock underlying our stock options, warrants and equity awards issued under our 2015 ESPP at the grant date by taking the average historical volatility of
the  common  stock  of  a  group  of  comparable  publicly  traded  companies  over  a  period  equal  to  the  expected  life.  We  use  this  method  because  we  have  limited
information on the volatility of our Class A common stock because of our short trading history.

Risk-Free Rate . The risk-free interest rate is the estimated average interest rate based on U.S. Treasury zero-coupon notes with terms consistent with the

expected term of the awards.

Dividend Yield . We have never declared or paid any cash dividends and do not presently plan to pay cash dividends in the foreseeable future. Consequently,

we used an expected dividend yield of zero.

The assumptions used in calculating the fair value of the stock-based awards represent management judgment. As a result, if factors change and different

assumptions are used, the stock-based compensation expense could be materially different in the future.

Recent Accounting Pronouncements

Accounting Pronouncements Not Yet Adopted

In May 2014, the Financial Accounting Standards Board, or the FASB, issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606), which
affects any entity that either enters into contracts with customers to transfer goods and services or enters into contracts for the transfer of nonfinancial assets. ASU
2014-09 will replace most existing revenue recognition guidance in U.S. GAAP when it becomes effective. The standard’s core principle is that a company will
recognize  revenue  when  it  transfers  promised  goods  or  services  to  customers  in  an  amount  that  reflects  the  consideration  to  which  the  company  expects  to  be
entitled  in  exchange  for  those  goods  or  services.  In  doing  so,  companies  will  need  to  use  more  judgment  and  make  more  estimates  than  under  the  currently
effective guidance. These judgments may include identifying performance obligations in the contract, estimating the amount of variable consideration to include in
the transaction price and allocating the transaction price to each separate performance obligation. In April 2016, the FASB issued ASU 2016-10, which clarifies
guidance  on  identifying  performance  obligations  and  licensing  implementation.  We  will  adopt  ASU  2014-09  effective  January  1,  2018,  utilizing  the  modified
retrospective transition method. Upon adoption, we will recognize the cumulative effect of adopting this guidance as an adjustment to our opening accumulated
deficit balance. We expect this adjustment to be immaterial to our consolidated financial statements. Prior periods will not be retrospectively adjusted. We have
assessed  the  impact  of  the  guidance,  which  includes  evaluating  customer  contracts  across  the  organization,  developing  policies,  processes  and  tools  to  report
financial results, and implementing and evaluating our internal control over financial reporting that will be necessary under the new standard. The new standard
may, in certain circumstances, impact the timing of when revenue is recognized for products shipped, and the timing and classification of certain sales incentives,
which are expected to generally be recognized earlier than historical guidance. In addition, we have determined that the presentation of certain reserve balances
currently shown net within accounts receivable will be presented as refund liabilities within current liabilities upon adoption. We have also determined that the
impact of accounting for costs incurred

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to obtain a contract is immaterial. We believe the new guidance is materially consistent with our historical revenue recognition policy. Overall, we do not currently
expect the adoption to have a material impact on our consolidated financial statements.

In January 2016, the FASB issued ASU No. 2016-01, F inancial Instruments – Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets
and Financial Liabilities , which updates certain aspects of recognition, measurement, presentation, and disclosure of financial instruments. We will adopt ASU
2016-01 in our first quarter of 2018. We are currently evaluating the impact of this guidance on our consolidated financial statements.

In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) . ASU 2016-02 requires lessees to recognize right-of-use assets and lease liabilities for
operating leases, initially measured at the present value of the lease payments, on the balance sheet. ASU 2016-02 will become effective for us on January 1, 2019,
and requires adoption using a modified retrospective approach. We are currently evaluating the impact of this guidance on our consolidated financial statements.
We anticipate that the adoption will have a material impact on our consolidated balance sheets, as it will now include a right of use asset and a lease liability for the
obligation to make lease payments related to substantially all operating lease arrangements; however, we do not expect the adoption to have a material impact on
our consolidated statements of operations.

In June 2016, the FASB issued ASU 2016-13,  Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments.
ASU 2016-13 provides for a new impairment model which requires measurement and recognition of expected credit losses for most financial assets and certain
other instruments, including but not limited to accounts receivable and available for sale debt securities. ASU 2016-13 will become effective for us on January 1,
2020 and early adoption is permitted. We are currently evaluating the impact of this guidance on the consolidated financial statements.

In August 2016, the FASB issued ASU 2016-15,  Statement of Cash Flows (Topic 230) . ASU 2016-15 provides guidance intended to reduce diversity in
practice in how certain transactions are classified in the statement of cash flows. ASU 2016-15 provides guidance in a number of situation including, among others,
contingent consideration payments made after a business combination, proceeds from the settlement of insurance claims, distributions received from equity method
investees, and classifying cash receipts and payments that have aspects of more than one class of cash flows. ASU 2016-15 will become effective for us on January
1,  2018  and  early  adoption  is  permitted.  We  do  not  currently  expect  the  adoption  of  this  guidance  to  have  a  material  impact  on  our  consolidated  financial
statements.

In January 2017, the FASB issued ASU 2017-01,  Business Combinations (Topic 805): Clarifying the Definition of a Business . The purpose of ASU 2017-
01 is to change the definition of a business to assist entities with evaluating when a set of transferred assets and activities is a business. ASU 2017-01 will become
effective for us on January 1, 2018. We do not expect the adoption of this guidance to have a material impact on our consolidated financial statements.

In January 2017, the FASB issued ASU 2017-04,  Intangibles-Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment.  ASU 2017-
04  simplifies  the  subsequent  measurement  of  goodwill  by  eliminating  the  second  step  of  the  goodwill  impairment  test.  The  second  step  measures  a  goodwill
impairment loss by comparing the implied fair value of a reporting unit’s goodwill with the carrying amount of that goodwill. Under ASU 2017-04, a company will
record  an  impairment  charge  based  on  the  excess  of  a  reporting  unit’s  carrying  amount  over  its  fair  value.  ASU  2017-04  will  be  applied  prospectively  and  is
effective  for  annual  or  interim  goodwill  impairment  tests  in  fiscal  years  beginning  after  December  15,  2019.  Early  adoption  is  permitted  for  interim  or  annual
goodwill impairment tests performed on testing dates after January 1, 2017. We are currently evaluating the impact of this guidance on our consolidated financial
statements.

In  May  2017,  the  FASB  issued  ASU  2017-09,    Compensation-Stock  Compensation  (Topic  718):  Scope  of  Modification  Accounting  .  ASU 2017-09  was
issued  to  clarify  and  reduce  both  (i)  diversity  in  practice  and  (ii)  cost  and  complexity  when  applying  the  guidance  in  Topic  718  to  a  change  to  the  terms  and
conditions of a share-based payment award. ASU 2017-09 will become effective for us on January 1, 2018 with early adoption permitted. The amendments to ASU
2017-09 should be applied prospectively to an award modified on or after the adoption date. We do not currently expect the adoption of this guidance to have a
material impact on our consolidated financial statements.

In August 2017, the FASB issued ASU 2017-12,  Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities. ASU
2017-12 amends the hedge accounting rules to simplify the application of hedge accounting guidance and better portray the economic results of risk management
activities  in  the  financial  statements.  The  guidance  expands  the  ability  to  hedge  non-financial  and  financial  risk  components,  reduces  complexity  in  fair  value
hedges  of  interest  rate  risk,  eliminates  the  requirement  to  separately  measure  and  report  hedge  ineffectiveness,  as  well  as  eases  certain  hedge  effectiveness
assessment requirements. ASU 2017-12 will become effective for us on January 1, 2019 with early adoption permitted. We plan to early adopt this new guidance in
the first quarter of 2018 and do not expect the adoption will have a material impact on our consolidated financial statements.

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Accounting Pronouncements Recently Adopted

In March 2016, the FASB issued ASU 2016-09, Compensation-Stock Compensation (Topic 718). ASU 2016-09 simplifies several aspects of the accounting
for  share-based  payment  transactions,  including  the  income  tax  consequences,  classification  of  awards  as  either  equity  or  liabilities,  and  classification  on  the
statement of cash flows. Upon adoption, ASU 2016-09 requires that excess tax benefits for share-based payments be recorded as a reduction of income tax expense
and  reflected  within  operating  cash  flows,  rather  than  being  recorded  within  equity  and  reflected  within  financing  cash  flows.  ASU  2016-09  also  permits  the
repurchase  of  more  of  an  employee’s  shares  for  tax  withholding  purposes  without  triggering  liability  accounting,  clarifies  that  all  cash  payments  made  on  an
employee’s  behalf  for  withheld  shares  should  be  presented  as  a  financing  activity  on  our  cash  flows  statement,  and  provides  an  accounting  policy  election  to
account  for  forfeitures  as they  occur.  ASU 2016-09 became  effective  for us on January  1, 2017. The adoption  of ASU 2016-09 resulted  in a cumulative  effect
adjustment of $4.9 million to increase retained earnings as of January 1, 2017, related to the recognition of previously unrecognized excess tax benefits using the
modified retrospective method. We elected to apply the change in presentation of excess tax benefits in the consolidated statement of cash flows retrospectively,
which resulted in an increase in net cash provided by operations and a decrease in net cash provided by financing activities of $29.2 million for 2016 and $32.1
million for 2015.  We also elected to make an accounting policy change to recognize forfeitures starting on January 1, 2017 on a prospective basis. Adoption of
ASU 2016-09 resulted in the recognition of net stock compensation shortfalls in our provision for income taxes rather than paid-in capital of $2.8 million for the
three months ended April 1, 2017.

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Item 7A. Quantitative and Qualitative Disclosures about Market Risk

We are exposed to market risks in the ordinary course of our business. These risks primarily include interest rate and foreign currency risks as follows:

Interest Rate Risk

Our  exposure  to  changes  in  interest  rates  relates  primarily  to  our  investment  portfolio.  As  of  December  31, 2017  ,  we  had  cash  and  cash  equivalents  of
$342.0  million  and  marketable  securities  of  $337.3  million  ,  which  consisted  primarily  of  bank  deposits,  money  market  funds,  U.S.  government  and  agency
securities, commercial paper, and corporate notes and bonds. The primary objectives of our investment activities are to preserve principal and provide liquidity
without significantly increasing risk. Our investment policy specifies credit quality standards for our investments and limits the amount of credit exposure to any
single issue, issuer, or type of investment.

To date, we have not been exposed, nor do we anticipate being exposed, to material risks due to changes in interest rates. A hypothetical 10% change in

interest rates during any of the periods presented would not have had a material impact on our consolidated financial statements.

Foreign Currency Risk

To date, all of our inventory purchases have been denominated in U.S. dollars. Our international sales are primarily denominated in foreign currencies and
any unfavorable movement in the exchange rate between U.S. dollars and the currencies  in which we conduct sales in foreign countries could have an adverse
impact  on  our  revenue.  A  portion  of  our  operating  expenses  are  incurred  outside  the  United  States  and  are  denominated  in  foreign  currencies,  which  are  also
subject to fluctuations due to changes in foreign currency exchange rates. In addition, our suppliers incur many costs, including labor costs, in other currencies. To
the extent that exchange rates move unfavorably for our suppliers, they may seek to pass these additional costs on to us, which could have a material impact on our
gross margins. Our operating results and cash flows are, therefore, subject to fluctuations due to changes in foreign currency exchange rates. However, we believe
that the exposure to foreign currency fluctuation from operating expenses is relatively small at this time as the related costs do not constitute a significant portion
of our total expenses.

To partially mitigate the impact of changes in currency exchange rates on net cash flows from our foreign currency denominated revenue and expenses, we
enter into foreign currency exchange forward and option contracts. We also hedge certain monetary assets and liabilities denominated in foreign currencies, which
reduces  but  does  not  eliminate  our  exposure  to  currency  fluctuations  between  the  date  a  transaction  is  recorded  and  the  date  that  cash  is  collected  or  paid.  In
general, the market risks of these contracts are offset by corresponding gains and losses on the transactions being hedged.

We had no outstanding contracts in cash flow hedges for forecasted revenue and expense transactions as of December 31, 2017 . We had outstanding balance
sheet hedges with a total notional amount of $141.2 million as of December 31, 2017 . We assessed our exposure to movements in currency exchange rates by
performing  a  sensitivity  analysis  of  adverse  changes  in  exchange  rates  and  the  corresponding  impact  to  our  results  of  operations.  Based  on  transactions
denominated in currencies other than respective functional currencies, a hypothetical change of 10% would have resulted in an impact on loss before income taxes
of approximately $5.4 million for 2017 .

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Item 8. Financial Statements and Supplementary Data

FITBIT, INC.
INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

Report of Independent Registered Public Accounting Firm

Consolidated Financial Statements:

Consolidated Balance Sheets

Consolidated Statements of Operations

Consolidated Statements of Comprehensive Income (Loss)

Consolidated Statements of Stockholders’ Equity (Deficit)

Consolidated Statements of Cash Flows

Notes to Consolidated Financial Statements

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63

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Report of Independent Registered Public Accounting Firm

To the Board of Directors and Stockholders of Fitbit, Inc.

Opinions on the Financial Statements and Internal Control over Financial Reporting

We have audited the accompanying consolidated balance sheets of Fitbit, Inc. and its subsidiaries as of December 31, 2017 and 2016, and the related consolidated
statements of operations, of comprehensive income (loss), of redeemable convertible preferred stock and stockholders’ equity (deficit), and of cash flows for each
of the three years in the period ended December 31, 2017, including the related notes (collectively referred to as the “consolidated financial statements”). We also
have  audited  the  Company's  internal  control  over  financial  reporting  as  of  December  31,  2017,  based  on  criteria  established  in  Internal  Control  -  Integrated
Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO).

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of the Company as of December
31, 2017 and 2016, and the results of their operations and their cash flows for each of the three years in the period ended December 31, 2017 in conformity with
accounting principles generally accepted in the United States of America. Also in our opinion, the Company did not maintain, in all material respects, effective
internal control over financial reporting as of December 31, 2017, based on criteria established in Internal Control - Integrated Framework (2013) issued by the
COSO because a material weakness in internal control over financial reporting related to accuracy of inputs in the sales order entry process existed as of that
date.

A material weakness is a deficiency, or a combination of deficiencies, in internal control over financial reporting, such that there is a reasonable possibility that a
material misstatement of the annual or interim financial statements will not be prevented or detected on a timely basis. The material weakness referred to above is
described in Management's Report on Internal Control Over Financial Reporting appearing under Item 9A. We considered this material weakness in determining
the nature, timing, and extent of audit tests applied in our audit of the 2017 consolidated financial statements, and our opinion regarding the effectiveness of the
Company’s internal control over financial reporting does not affect our opinion on those consolidated financial statements.

Change in Accounting Principle

As discussed in Note 2 to the consolidated financial statements, the Company changed the manner in which it accounts for certain elements of its employee share-
based payments in 2017.

Basis for Opinions

The Company's management is responsible for these consolidated financial statements, for maintaining effective internal control over financial reporting, and for
its assessment of the effectiveness of internal control over financial reporting included in management's report referred to above. Our responsibility is to express
opinions on the Company’s consolidated financial statements and on the Company's internal control over financial reporting based on our audits. We are a public
accounting firm registered with the Public Company Accounting Oversight Board (United States) ("PCAOB") and are required to be independent with respect to
the  Company  in  accordance  with  the  U.S.  federal  securities  laws  and  the  applicable  rules  and  regulations  of  the  Securities  and  Exchange  Commission  and  the
PCAOB.

We  conducted  our  audits  in  accordance  with  the  standards  of  the  PCAOB.  Those  standards  require  that  we  plan  and  perform  the  audits  to  obtain  reasonable
assurance  about  whether  the  consolidated  financial  statements  are  free  of  material  misstatement,  whether  due  to  error  or  fraud,  and  whether  effective  internal
control over financial reporting was maintained in all material respects.

Our  audits  of  the  consolidated  financial  statements  included  performing  procedures  to  assess  the  risks  of  material  misstatement  of  the  consolidated  financial
statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence
regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant
estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. Our audit of internal control over financial
reporting  included  obtaining  an  understanding  of  internal  control  over  financial  reporting,  assessing  the  risk  that  a  material  weakness  exists,  and  testing  and
evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audits also included performing such other procedures as we
considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions.

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Definition and Limitations of Internal Control over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the
preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial
reporting includes those policies and procedures that (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions
and  dispositions  of  the  assets  of  the  company;  (ii)  provide  reasonable  assurance  that  transactions  are  recorded  as  necessary  to  permit  preparation  of  financial
statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with
authorizations  of  management  and  directors  of  the  company;  and  (iii)  provide  reasonable  assurance  regarding  prevention  or  timely  detection  of  unauthorized
acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because  of  its  inherent  limitations,  internal  control  over  financial  reporting  may  not  prevent  or  detect  misstatements.  Also,  projections  of  any  evaluation  of
effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with
the policies or procedures may deteriorate.  

/s/PricewaterhouseCoopers LLP
San Francisco, California
March 1, 2018

We have served as the Company’s auditor since 2011.

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FITBIT, INC.
Consolidated Balance Sheets
(In thousands, except share and per share amounts)

Assets

Current assets:

Cash and cash equivalents

Marketable securities

Accounts receivable, net

Inventories

Income tax receivable

Prepaid expenses and other current assets

Total current assets

Property and equipment, net

Goodwill

Intangible assets, net

Deferred tax assets

Other assets

Total assets

Liabilities and Stockholders’ Equity

Current liabilities:

Accounts payable

Accrued liabilities

Deferred revenue

Income taxes payable

Total current liabilities

Long-term deferred revenue

Other liabilities

Total liabilities

Commitments and contingencies (Note 7)

Stockholders’ equity:

Preferred stock, $0.0001 par value, 10,000,000 shares authorized

Class A common stock, $0.0001 par value, 600,000,000 shares authorized; 207,453,624 and 177,212,531 shares
issued and outstanding as of December 31, 2017 and 2016, respectively

Class B common stock, $0.0001 par value, 350,000,000 shares authorized; 31,302,898 and 48,450,746 shares
issued and outstanding as of December 31, 2017 and 2016, respectively

Additional paid-in capital

Accumulated other comprehensive loss

Retained earnings (accumulated deficit)

Total stockholders’ equity

Total liabilities and stockholders’ equity

December 31,

2017

2016

$

341,966   $

337,334  

406,019  

123,895  

77,882  

97,269  

1,384,365  

104,908  

51,036  

22,356  

3,990  

15,420  

301,320

404,693

477,825

230,387

481

65,865

1,480,571

76,553

51,036

27,521

175,797

10,448

$

$

1,582,075   $

1,821,926

212,731   $

452,137  

35,504  

928  

701,300  

6,928  

49,884  

758,112  

—  

21  

3  

956,060  

(9)  

(132,112)  

823,963  

313,773

390,561

42,612

9,394

756,340

7,292

59,762

823,394

—

18

5

859,345

(978)

140,142

998,532

$

1,582,075   $

1,821,926

The accompanying notes are an integral part of these consolidated financial statements.

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FITBIT, INC.
Consolidated Statements of Operations
(In thousands, except per share amounts)

Revenue

Cost of revenue

Gross profit

Operating expenses:

Research and development

Sales and marketing

General and administrative

Change in contingent consideration

Total operating expenses

Operating income (loss)

Interest income (expense), net

Other income (expense), net

Income (loss) before income taxes

Income tax expense (benefit)

Net income (loss)

Less: noncumulative dividends to preferred stockholders

Less: undistributed earnings to participating securities

Net income (loss) attributable to common stockholders—basic

Add: adjustments for undistributed earnings to participating securities

Net income (loss) attributable to common stockholders—diluted

Net income (loss) per share attributable to common stockholders:

Basic

Diluted

Shares used to compute net income (loss) per share attributable to common stockholders:

Basic

Diluted

Year Ended December 31,

2017

2016

2015

$

1,615,519   $

2,169,461   $

1,857,998

924,618  

690,901  

1,323,577  

845,884  

343,012  

415,042  

133,934  

—  

891,988  

(201,087)  

3,647  

2,796  

(194,644)  

82,548  

(277,192)  

—  

—  

320,191  

491,255  

146,903  

—  

958,349  

(112,465)  

3,156  

14  

(109,295)  

(6,518)  

(102,777)  

—  

—  

$

$

$

(277,192)  

(102,777)  

—  

—  

(277,192)   $

(102,777)   $

(1.19)   $

(1.19)   $

(0.47)   $

(0.47)   $

232,032  

232,032  

220,405  

220,405  

956,935

901,063

150,035

332,741

77,793

(7,704)

552,865

348,198

(1,019)

(59,230)

287,949

112,272

175,677

(2,526)

(59,133)

114,018

8,821

122,839

0.88

0.75

129,886

164,213

The accompanying notes are an integral part of these consolidated financial statements.

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FITBIT, INC.
Consolidated Statements of Comprehensive Income (Loss)
(In thousands)

Net income (loss)

Other comprehensive income (loss):

Cash flow hedges:

Year Ended December 31,

2017

2016

2015

$

(277,192)   $

(102,777)   $

175,677

Change in unrealized gain on cash flow hedges, net of tax expense (benefit) of ($1),
($1,251), and $1,509, respectively

Less reclassification for realized net gains included in net income (loss), net of tax expense
of $74, $509, and $759, respectively

Net change, net of tax

Available-for-sale investments:

Change in unrealized loss on investments

Less reclassification for realized net gains included in net income (loss)

Net change, net of tax

Change in foreign currency translation adjustment, net of tax

Comprehensive income (loss)

(19,422)  

9,422  

1,276

19,965  

543  

(10,650)  

(1,228)  

125  

(13)  

112  

314  

(126)  

(6)  

(132)  

(309)  

(525)

751

(63)

8

(55)

(42)

$

(276,223)   $

(104,446)   $

176,331

The accompanying notes are an integral part of these consolidated financial statements.

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FITBIT, INC.
Consolidated Statements of Stockholders’ Equity (Deficit)
(In thousands except share amounts)

Balance at December 31, 2014

139,851,483   $ 67,814   40,875,583   $

4   $

7,979   $

37

  $

67,242   $

75,262

Redeemable Convertible
Preferred Stock

Class A and Class B
Common Stock

Shares

  Amount

Shares

  Amount

  Additional
Paid-In
Capital

Accumulated
Other
Comprehensive
Income (Loss)

Retained
Earnings
(Accumulated
Deficit)

Total
Stockholders’
Equity
(Deficit)

Issuance of common stock upon public offerings,
net of offering costs
Issuance of redeemable convertible preferred
stock upon net exercise of redeemable convertible
preferred stock warrants
Conversion of redeemable convertible preferred
stock to common stock upon initial public
offering
Reclassification of redeemable convertible
preferred stock warrant liability into additional
paid in capital upon initial public offering
Issuance of common stock upon exercise of stock
options
Issuance of common stock in connection with
acquisition
Issuance of common stock subject to vesting in
connection with acquisition
Issuance of common stock upon net exercise of
common stock warrants
Stock-based compensation expense

Excess tax benefit from stock-based compensation

Net income

Other comprehensive income

Balance at December 31, 2015

Issuance of common stock

Stock-based compensation expense

Taxes related to net share settlement of restricted
stock units
Excess tax benefit from stock-based compensation

Net loss

Other comprehensive loss

Balance at December 31, 2016

Issuance of common stock

Stock-based compensation expense

Taxes related to net share settlement of restricted
stock units
Cumulative effect adjustment related to
recognition of previously unrecognized excess tax
benefits from adoption of ASU 2016-09
Net loss

Other comprehensive income

Balance at December 31, 2017

—  

—   25,387,500  

3  

499,102  

1,485,583  

56,678  

—  

—  

—  

(141,337,066)   (124,492)   141,337,066  

14  

124,478  

—  

—  

—  

—  

—  
—  
—  
—  
—  
—  
—  
—  

—  
—  
—  
—  
—  
—  
—  

—  

—  

—  

—  

15,774  

—  

5,396,591  

—  

4,018  

—  

1,059,688  

—  

13,317  

—  

308,216  

416,929  
—  
—  
—  
—  
—  
—  
—  
—  
—  
—   214,781,573  
—   10,881,704  
—  
—  

—  
—  
—  
—  
—  
—  
—  
—  
—   225,663,277  
—   13,093,245  
—  
—  

—  

—  
—  
—  
—  
—  
21  
2  
—  

—  
—  
—  
—  
23  
1  
—  

—  

—  
41,052  
32,100  
—  
—  
737,820  
25,812  
79,107  

(4,939)  
21,545  
—  
—  
859,345  
19,010  
92,081  

—  

—  

—  

(14,376)  

—  
—  
—  
—   $

—  
—  
—  
—   238,756,522   $

—  
—  
—  

—  
—  
—  
24   $ 956,060   $

—  
—  
—  

—  

—  

—  

—  

—  

—  

—  

—  
—  
—  
—  

654

691
—  
—  

—  
—  
—  

(1,669)

(978)

—  
—  

—  

—  
—  

969

—  

—  

—  

—  

—  

—  

—  

—  
—  
—  
175,677  
—  
242,919  
—  
—  

—  
—  
(102,777)  
—  
140,142  
—  
—  

499,105

—

124,492

15,774

4,018

13,317

—

—

41,052

32,100

175,677

654

981,451

25,814

79,107

(4,939)

21,545

(102,777)

(1,669)

998,532

19,011

92,081

—  

(14,376)

4,938  
(277,192)  
—  

4,938

(277,192)

969

(9)

  $

(132,112)   $

823,963

The accompanying notes are an integral part of these consolidated financial statements.

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FITBIT, INC.
Consolidated Statements of Cash Flows
(In thousands)

Cash Flows from Operating Activities

Net income (loss)

Adjustments to reconcile net income (loss) to net cash provided by operating activities:

Provision for doubtful accounts

Provision for excess and obsolete inventory

Depreciation

Amortization of intangible assets

Accelerated depreciation of property and equipment

Amortization of issuance costs and discount on debt

Stock-based compensation

Deferred income taxes

Revaluation of redeemable convertible preferred stock warrant liability

Change in contingent consideration

Other

Changes in operating assets and liabilities, net of acquisitions:

Accounts receivable

Inventories

Prepaid expenses and other assets

Fitbit Force recall reserve

Accounts payable

Accrued liabilities and other liabilities

Deferred revenue

Income taxes payable

Net cash provided by operating activities

Cash Flows from Investing Activities

Purchase of property and equipment

Purchase of marketable securities

Sales of marketable securities

Maturities of marketable securities

Acquisitions, net of cash acquired

Equity investment

Net cash used in investing activities

Cash Flows from Financing Activities

Payment of offering costs

Proceeds from issuance of common stock

Taxes paid related to net share settlement of restricted stock units

Proceeds from public offerings, net of underwriting discounts and commissions

Proceeds from issuance of debt and revolving credit facility

Repayment of debt

Payment of issuance costs

Net cash provided by financing activities

Net increase (decrease) in cash and cash equivalents

Effect of exchange rates on cash and cash equivalents

Cash and cash equivalents at beginning of period

Cash and cash equivalents at end of period

Supplemental Disclosure

Year Ended December 31,

2017

2016

2015

$

(277,192)

  $

(102,777)   $

175,677

7,893

14,833

39,971

5,722

5,250

951

91,581

173,906

—  
—  

216

63,784

92,129

(113,111)

(789)

(86,115)

56,172

(7,472)

(3,488)

64,241

(89,160)

(597,933)

42,406

622,525

(556)

(6,000)

(28,718)

—  

19,011

(14,376)

—  
—  
—  
—  

4,635

40,158

488

301,320

$

341,966

  $

339  
4,993  
36,046  
2,087  
19,805  
466  
79,432  
(100,434)  
—  
—  
(423)  

(8,701)  
(61,975)  
(37,876)  
(3,869)  
45,654  
213,361  
5,456  
47,136  
138,720  

(78,640)  
(638,055)  
46,511  
315,774  
(38,256)  
—  
(392,666)  

(1,236)  
25,969  
(4,939)  
—  
—  
—  
—  
19,794  
(234,152)  
(374)  
535,846  
301,320   $

1,115

5,060

19,405

1,702

1,206

961

41,024

(42,538)

56,655

(7,704)

(263)

(231,100)

(68,108)

(29,215)

(17,354)

56,759

138,748

34,891

4,336

141,257

(30,566)

(230,935)

58,011

44,500

(11,037)

—

(170,027)

(5,089)

4,018

—

505,275

160,000

(294,503)

(748)

368,953

340,183

37

195,626

535,846

 
 
 
 
 
 
 
   
   
 
   
   
 
   
   
 
 
 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
   
   
 
   
   
Cash paid for interest

Cash paid for income taxes

Supplemental Disclosure of Non-Cash Investing and Financing Activity

Purchase of property and equipment included in accounts payable and accrued liabilities

Conversion of redeemable convertible preferred stock into Class B common stock

Reclassification of redeemable convertible preferred stock warrant liability to additional paid in capital

Issuance of redeemable convertible preferred stock upon net exercise of redeemable convertible preferred stock
warrants
Deferred offering costs included in accounts payable and accruals

Issuance of common stock in connection with acquisitions

Contingent consideration related to acquisitions

$

$

$

$

$

$

$

$

$

1,019

382

  $
  $

4,197

  $
—   $
—   $

—   $
—   $
—   $
—   $

624   $
34,014   $

19,778   $
—   $
—   $

—   $
—   $
—   $
—   $

1,157

150,923

10,534

124,492

15,774

56,678

1,080

13,317

(7,704)

The accompanying notes are an integral part of these consolidated financial statements.

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1.    Business Overview and Basis of Presentation

Description of Business

FITBIT, INC.
Notes to Consolidated Financial Statements

Fitbit,  Inc.  (the  “Company”)  is  a  technology  company  focused  on  driving  health  solutions  and  positively  impacting  health  outcomes.  The  Fitbit  platform
combines wearable devices with software and services to give its users tools to help them reach their health and fitness goals. The Company’s wearable devices,
which include health and fitness trackers and smartwatches, enable its users to view data about their daily activity, exercise and sleep in real-time. The Company’s
software and services, which include an online dashboard and mobile app, provide its users with data analytics, motivational and social tools, and virtual coaching
through customized fitness plans and interactive workouts, drive engagement and can be leveraged to provide personalized insights. The Company sells devices
through diversified sales channels that include distributors, retailers, a corporate wellness offering, and Fitbit.com. The Company has established wholly-owned
subsidiaries globally and its corporate headquarters are located in San Francisco, California.

Basis of Presentation and Principles of Consolidation

The  consolidated  financial  statements  are  prepared  in  accordance  with  U.S.  generally  accepted  accounting  principles  (“U.S.  GAAP”).  The  consolidated

financial statements include the accounts of the Company and its wholly-owned subsidiaries. All intercompany transactions and balances have been eliminated.

The Company’s fiscal year ends on December 31 of each year. In the first quarter of 2016, the Company adopted a 4-4-5 week quarterly calendar, which, for

the 2016 fiscal year, was comprised of four fiscal quarters ending on April 2, 2016, July 2, 2016, October 1, 2016, and December 31, 2016.

Use of Estimates

The preparation of consolidated financial statements in accordance with U.S. GAAP requires management to make estimates and assumptions that affect the
amounts reported and disclosed in the consolidated financial statements and accompanying notes. The primary estimates and assumptions made by management
are related to revenue recognition, reserves for sales returns and incentives, reserves for warranty, valuation of stock options, fair value of derivative assets and
liabilities, allowance for doubtful accounts, inventory valuation, fair value of goodwill and acquired tangible and intangible assets and liabilities assumed during
acquisitions, the number of reportable segments, the recoverability of intangible assets and their useful lives, contingencies, and income taxes. Actual results could
differ from those estimates, and such differences may be material to the consolidated financial statements.

Comprehensive Income (Loss)

Comprehensive  income  (loss)  consists  of  two  components,  net  income  (loss)  and  other  comprehensive  income  (loss),  net  of  tax.  Other  comprehensive
income  refers  to revenue,  expenses,  and gains and losses that  are  recorded  as an element  of stockholders’  equity  but are  excluded  from  net income  (loss).  The
Company’s other comprehensive income (loss) consists of net unrealized gains and losses on derivative instruments accounted for as cash flow hedges, foreign
currency translation adjustments from those subsidiaries not using the U.S. dollar as their functional currency, and unrealized gains and losses on available-for-sale
securities.

Out-of-Period Adjustments

During the preparation of the consolidated financial statements as of and for the year ended December 31, 2017, the Company identified errors within the
Company’s  consolidated  balance  sheet  for  the  year  ended  December  31,  2016,  which  financial  statements  were  revised  to  correct  the  errors.  The  Company
determined that within the consolidated balance sheet previously disclosed as of December 31, 2016, deferred revenue was overstated by $7.3 million and other
liabilities was understated by the same amount, and deferred tax assets and income taxes payable were understated by $1.7 million . The Company evaluated the
error and concluded that it was not material to the financial statements previously issued.

Customer Bankruptcy

In September 2017, Wynit Distribution (“Wynit”) filed for bankruptcy protection under Chapter 11 of the United States Bankruptcy Code. Wynit was the

Company’s largest customer, historically representing 11% of total revenue during the six months

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ended  July  1,  2017  and  19%  of  total  accounts  receivables  as  of  July  1,  2017.  In  connection  with  Wynit’s  bankruptcy  filing,  the  Company  believed  that  the
collectability of the product shipments to Wynit during the third quarter of 2017 was not reasonably assured. However, as of July 1, 2017, collectability of accounts
receivables from Wynit was reasonably assured. 

The Company ceased to recognize revenue from Wynit, which totaled $8.1 million during the third quarter of 2017. Additionally, the Company recorded a
charge of $35.8 million during the third quarter ended September 30, 2017 comprised of cost of revenue of $5.5 million associated with shipments to Wynit in the
third  quarter  of  2017  and  bad  debt  expense  of  $30.3  million  associated  with  all  of  Wynit’s  outstanding  accounts  receivables.  The  Company  maintains  credit
insurance  that  covers  a  portion  of  the  exposure  related  to  its  customer  receivables.  The  Company  recorded  an  insurance  receivable  based  on  an  analysis  of  its
insurance policies, including their exclusions, an assessment of the nature of the claim, and information from its insurance carrier. As of September 30, 2017, the
Company  had  recorded  an  insurance  receivable  of  $26.8  million  ,  included  in  prepaid  expenses  and  other  current  assets,  associated  with  the  amount  it  had
concluded was probable related to the claim. The $26.8 million insurance receivable allowed the Company to recover $22.7 million of bad debt expense and $4.1
million of cost of revenue, resulting in a net charge of $9.0 million in the consolidated statement of operations comprised of net bad debt expense of $7.6 million
and net cost of revenue of $1.4 million . The Company received $21.4 million of the insurance receivable during the fourth quarter of 2017, and the remaining $5.4
million in January 2018.

Non-Monetary Transaction

The Company entered into an agreement with a third party during 2016 to exchange inventory for advertising credits and cash. The Company recorded the
transaction based on the estimated fair value of the products exchanged. For the year ended December 31, 2016, the Company recorded $15.0 million of revenue
and $7.0 million of  associated  cost  of  goods  sold  upon  exchange  of  the  products  for  advertising  credits  of  $13.0 million and  cash  of  $2.0 million . The $13.0
million of unused advertising credits remaining as of December 31, 2016 were recorded in prepaid expenses and other current assets, and other assets. Such credits
are expected to be used over the contractual period of four years, and will be expensed as advertising services are received. During the year ended December 31,
2017  ,  $0.8  million  of  credits  were  utilized.  The  Company’s  prepaid  and  other  assets  related  to  unused  advertising  credits  as  of  December  31,  2017  and
December 31, 2016 were $12.2 million and $13.0 million , respectively.

2.    Significant Accounting Policies

Cash, Cash Equivalents and Marketable Securities

Cash and cash equivalents include all cash balances and highly liquid investments with original maturities of three months or less from the date of purchase.
Cash equivalents  and marketable  securities  consist of money market  funds, U.S. government  and agency securities,  commercial  paper, and corporate  notes and
bonds.

The Company’s marketable securities are classified as available-for-sale as of the balance sheet date and are reported at fair value with unrealized gains and
losses reported, net of tax, as a separate component of accumulated other comprehensive income in stockholders’ equity. Because the Company views marketable
securities as available to support current operations as needed, it has classified all available-for-sale securities as current assets. Realized gains or losses and other-
than-temporary  impairments,  if  any,  on  available-for-sale  securities  are  reported  in  other  expense,  net  as  incurred.  Realized  gains  and  losses  on  the  sale  of
securities are determined by specific identification of each security’s cost basis. Investments are reviewed periodically to identify possible other-than-temporary
impairments. No impairment loss has been recorded on the securities as the Company believes that any decrease in fair value of these securities is temporary and
expects to recover up to, or beyond, the initial cost of investment for these securities.

Fair Value of Financial Instruments

Assets and liabilities recorded at fair value on a recurring basis are categorized based upon the level of judgment associated with inputs used to measure their
fair  values.  Fair  value  is  defined  as  the  price  that  would  be  received  to  sell  an  asset  or  paid  to  transfer  a  liability  in  an  orderly  transaction  between  market
participants at the reporting date.

The Company estimates fair value by applying the following hierarchy, which prioritizes the inputs used to measure fair value into three levels and bases the

categorization within the hierarchy upon the lowest level of input that is available and significant to the fair value measurement:

Level 1 —Quoted prices in active markets for identical assets or liabilities;

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Level 2 —Observable  inputs  other  than  quoted  prices  in  active  markets  for  identical  assets  and  liabilities,  quoted  prices  for  identical  or  similar  assets  or
liabilities in inactive markets, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or
liabilities; and

Level 3 —Inputs that are generally unobservable and typically reflect management’s estimate of assumptions that market participants would use in pricing

the asset or liability.

Foreign Currencies

The Company and all of its wholly-owned subsidiaries use the U.S. dollar as their functional currency.

The  Company’s  subsidiaries  that  use  the  U.S.  dollar  as  their  functional  currency  remeasure  local  currency  denominated  monetary  assets  and  liabilities  at
exchange rates in effect at the end of each period, and inventories, property, plant and equipment and other nonmonetary assets and liabilities at historical rates.
Gains  and  losses  from  these  remeasurements  have  been  included  in  the  Company’s  operating  results  within  other  income  (expense),  net.  Local  currency
transactions  of these international  operations  are remeasured  into U.S. dollars at the rates of exchange  in effect  at the date of the transaction.  Foreign currency
transaction gains (losses) were $2.6 million , $ 11.7 million , and $(1.3) million for 2017 , 2016 , and 2015, respectively.

Derivative Instruments

The Company accounts for its derivative instruments as either assets or liabilities and carries them at fair value. Derivatives held by the Company that are not
designated as hedges are adjusted to fair value through earnings at each reporting date. In addition, the Company enters into derivatives that are accounted for as
cash flow hedges. The Company records the gains or losses, net of tax, related to the effective portion of its cash flow hedges as a component of accumulated other
comprehensive income in stockholders’ equity and subsequently reclassifies the gains or losses into revenue and operating expenses when the underlying hedged
transactions  are  recognized.  The  Company  periodically  assesses  the  effectiveness  of  its  cash  flow  hedges.  The  fair  value  of  derivative  assets  and  liabilities  are
included in prepaid expenses and other current assets and accrued liabilities on the consolidated balance sheets.

Concentration of Credit Risk

Financial instruments that potentially subject the Company to concentrations of credit risk consist primarily of cash, cash equivalents, marketable securities,
accounts receivables, derivative instruments and cost method investments. Cash and cash equivalents are deposited with high quality financial institutions and may,
at times, exceed federally insured limits. Management believes that the financial institutions that hold the Company’s deposits are financially credit worthy and,
accordingly,  minimal  credit  risk  exists  with  respect  to  those  balances.  Generally,  these  deposits  may  be  redeemed  upon  demand  and,  therefore,  bear  minimal
interest rate risk.

The  Company’s  accounts  receivable  is  derived  from  customers  located  principally  in  the  United  States.  The  Company  maintains  credit  insurance  for  the
majority  of  its  customer  balances,  performs  ongoing  credit  evaluations  of  its  customers,  and  maintains  allowances  for  potential  credit  losses  on  customers’
accounts when deemed necessary. Credit losses historically have not been significant. The Company continuously monitors customer payments and maintains an
allowance  for  doubtful  accounts  based  on  its  assessment  of  various  factors  including  historical  experience,  age  of  the  receivable  balances,  and  other  current
economic conditions or other factors that may affect customers’ ability to pay.

The Company’s derivative instruments expose it to credit risk to the extent that its counterparties may be unable to meet the terms of the agreements. The
Company seeks to mitigate this risk by limiting counterparties to major financial institutions and by spreading the risk across several major financial institutions. In
addition, the potential risk of loss with any one counterparty resulting from this type of credit risk is monitored on an ongoing basis.

Supplier Concentration

The Company relies on third parties for the supply and manufacture of its products, as well as third-party logistics providers. In instances where these parties

fail to perform their obligations, the Company may be unable to find alternative suppliers or satisfactorily deliver its products to its customers on time, if at all.

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Inventories

Inventories consist of finished goods and component parts, which are purchased from contract manufacturers and component suppliers. Inventories are stated
at  the  lower  of  cost  or  net  realizable  value.  The  Company  assesses  the  valuation  of  inventory  and  periodically  writes  down  the  value  for  estimated  excess  and
obsolete inventory based upon estimates of future demand and market conditions.

Property and Equipment, Net

Property  and  equipment  are  stated  at  cost  less  accumulated  depreciation  and  amortization.  Depreciation  and  amortization  of  property  and  equipment  is
calculated using the straight-line method over the estimated useful lives of the assets. Cost of maintenance and repairs that do not improve or extend the lives of the
respective assets are expensed as incurred.

The useful lives of the property and equipment are as follows:

Tooling and manufacturing equipment

Furniture and office equipment

Purchased software

Capitalized internally-developed software

Leasehold improvements

Internally-Developed Software Costs

One to three years

Three years

Three years

Two to eight years

Shorter of remaining lease term or ten years

The Company capitalizes eligible costs to acquire, develop, or modify internal-use software that are incurred subsequent to the preliminary  project stage.

Capitalized internally-developed software costs, net, were $11.2 million as of December 31, 2017 and $6.3 million as of December 31, 2016.

Research and Development

Research and development expenses consist primarily of personnel-related  expenses, consulting and contractor expenses, tooling and prototype materials,
and  allocated  overhead  costs.  Substantially  all  of  the  Company’s  research  and  development  expenses  are  related  to  developing  new  products  and  services  and
improving  existing  products  and  services.  To  date,  research  and  development  expenses  have  been  expensed  as  incurred,  because  the  release  of  products  and
services for sale has been short and development costs qualifying for capitalization have been insignificant.

Business Combinations, Goodwill, and Intangible Assets

The Company allocates the fair value of purchase consideration to tangible assets, liabilities assumed, and intangible assets acquired based on their estimated
fair  values.  The  excess  of  the  fair  value  of  purchase  consideration  over  the  fair  values  of  these  identifiable  assets  and  liabilities  is  allocated  to  goodwill.  The
allocation of the purchase consideration requires management to make significant estimates and assumptions, especially with respect to intangible assets. These
estimates can include, but are not limited to, future expected cash flows from acquired customers, acquired technology, and trade names from a market participant
perspective, useful lives, and discount rates. Management’s estimates of fair value are based upon assumptions believed to be reasonable, but which are inherently
uncertain and unpredictable and, as a result, actual results may differ from estimates. During the measurement period, which is up to one year from the acquisition
date, the Company may record adjustments to the assets acquired and liabilities assumed, with the corresponding offset to goodwill. Upon the conclusion of the
measurement period, any subsequent adjustments are recorded to earnings.

The Company assesses goodwill for impairment at least annually during the fourth quarter and whenever events or changes in circumstances indicate that the
carrying value of the asset may not be recoverable. Consistent with the determination that the Company has one operating segment, the Company has determined
that there is one reporting unit and tests goodwill for impairment at the entity level. Goodwill is tested using the two-step process in accordance with ASC 350,
Intangibles—Goodwill and Other . In the first step, the carrying amount of the reporting unit is compared to the fair value based on the fair value of the Company’s
common  stock.  If  the  fair  value  of  the  reporting  unit  exceeds  the  carrying  value,  goodwill  is  not  considered  impaired  and  no  further  testing  is  required.  If  the
carrying value of the reporting unit exceeds the fair value, goodwill is potentially impaired and the second step of the impairment test must be performed. In the
second step, the implied fair value of the goodwill, as defined by ASC 350, is compared to its carrying amount to determine the amount of impairment loss, if any.
The Company tested goodwill for impairment as of October 31, 2017 and 2016, and the fair value of the reporting unit exceeded the carrying value. The Company
considered  other  factors  in  the  performance  of  the  annual  goodwill  impairment  test  in  the  fourth  quarter  of  2017,  including  assumptions  about  expected  future
revenue forecasts, changes in the overall economy, trends in its stock price, and other operating conditions.  It is

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reasonably possible that the Company could perform significantly below its expectations or a deterioration of market and economic conditions could occur. This
would adversely impact the Company's ability to meet its projected results, which could cause its goodwill to become impaired. If the Company determines that its
goodwill is impaired, it would be required to record a non-cash charge that could have a material adverse effect on its results of operations and financial position.

Acquired  finite-lived  intangible  assets  are  amortized  over  their  estimated  useful  lives.  The  Company  evaluates  the  recoverability  of  intangible  assets  for
possible impairment whenever events or circumstances indicate that the carrying amount of such assets may not be recoverable. Recoverability of these assets is
measured  by  a  comparison  of  the  carrying  amounts  to  the  future  undiscounted  cash  flows  the  assets  are  expected  to  generate.  If  such  review  indicates  that  the
carrying  amount  of  intangible  assets  is  not  recoverable,  the  carrying  amount  of  such  assets  is  reduced  to  fair  value.  The  Company  has  not  recorded  any  such
impairment charge during the years presented.

Impairment of Long-Lived Assets

The Company evaluates its long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may
not be recoverable. Recoverability is measured by comparison of the carrying amounts to the expected future undiscounted cash flows attributable to these assets.
If it is determined that an asset is not recoverable, an impairment loss is recorded in the amount by which the carrying amount of the assets exceeds the expected
discounted future cash flows arising from those assets.

Revenue Recognition

The  Company  derives  substantially  all  of  its  revenue  from  sales  of  its  wearable  devices,  which  includes  both  connected  health  and  fitness  devices  and
accessories  and  smartwatches.  The  Company  also  generates  a  small  portion  of  revenue  from  its  subscription-based  services.  The  Company  recognizes  revenue
when  persuasive  evidence  of  an  arrangement  exists,  delivery  has  occurred,  the  sales  price  is  fixed  or  determinable,  and  collection  is  reasonably  assured.  The
Company considers delivery of its products to have occurred once title and risk of loss has been transferred. For customers where transfer of risk of loss is at the
customer’s destination, the Company uses estimates to defer sales at the end of the reporting period based on historical experience of average transit time. The
Company recognizes revenue, net of estimated sales returns, sales incentives, discounts, and sales tax. The Company generally recognizes revenue for products
sold through retailers and distributors on a sell-in basis.

The Company enters into multiple element arrangements that include hardware, software, and services. The first deliverable is the hardware and firmware
essential to the functionality of the connected health and fitness device or smartwatch delivered at the time of sale. The second deliverable is the software services
included with the products, which are provided free of charge and enable users to sync, view, and access real-time data on the Company’s online dashboard and
mobile apps. The third deliverable is the embedded right included with the purchase of the device to receive, on a when-and-if-available basis, future unspecified
firmware  upgrades  and  features  relating  to  the  product’s  essential  firmware.  Commencing  in  the  first  quarter  of  2015,  the  Company  began  accounting  for  the
embedded right as a separate unit of accounting, which is when it believes, through public announcements, it had created an implied obligation to, from time to
time, provide future unspecified firmware upgrades and features to the firmware to improve and add new functionality to the health and fitness devices. In addition,
the Company occasionally offers a fourth deliverable in bundled arrangements that allows access to subscription-based services related to the Company’s Fitbit
Coach offering.

The Company allocates revenue to all deliverables based on their relative selling prices. The Company uses a hierarchy to determine the selling price to be
used for allocating revenue to deliverables: (i) vendor-specific objective evidence (“VSOE”) of fair value, (ii) third-party evidence (“TPE”), and (iii) best estimate
of  the  selling  price  (“BESP”).  The  Company’s  process  for  determining  its  BESP  considers  multiple  factors  including  consumer  behaviors  and  the  Company’s
internal  pricing  model  and  may  vary  depending  upon  the  facts  and  circumstances  related  to  each  deliverable.  BESP  for  the  health  and  fitness  devices  and
smartwatches  and  unspecified  upgrade  rights  reflect  the  Company’s  best  estimate  of  the  selling  prices  if  they  were  sold  regularly  on  a  stand-alone  basis  and
comprise the majority of the arrangement consideration. BESP for upgrade rights currently ranges from $1 to $3 . TPE for the online dashboard and mobile apps is
currently estimated at $0.99 . VSOE for access to Fitbit Coach subscription-based services is based on the price charged when sold separately.

Amounts allocated to the delivered wearable devices are recognized at the time of delivery, provided the other conditions for revenue recognition have been
met.  Amounts  allocated  to  the  online  dashboard  and  mobile  apps  and  unspecified  upgrade  rights  are  deferred  and  recognized  on  a  straight-line  basis  over  the
estimated usage period.

The Company offers its users the ability to purchase subscription-based services, through which the users receive incremental features, including access to a

digital personal trainer, in-depth analytics regarding the user’s personal metrics, or video-based

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customized  workouts.  Amounts  paid  for  subscriptions  are  deferred  and  recognized  ratably  over  the  service  period  which  is  typically  one  year.  Revenue  from
subscription-based services was less than 1% of revenue for all periods presented.

In  addition,  the  Company  offers  access  to  software  and  services  to  certain  customers  in  the  corporate  wellness  program,  which  includes  distribution
capabilities,  a  real-time  dashboard,  and  support  services.  The  Company  is  currently  unable  to  establish  VSOE  or  TPE  for  the  corporate  wellness  software  and
services. BESP for the corporate wellness software and services is determined based on the Company’s internal pricing model for anticipated renewals for existing
customers and pricing for new customers. Revenue allocated to the corporate wellness software and services is deferred and recognized on a straight-line basis over
the estimated access period of one year, which is the typical service period. Revenue for corporate wellness software and services was less than 1% of revenue for
all periods presented.

The Company accounts for shipping and handling fees billed to customers as revenue. Sales taxes and value added taxes (“VAT”) collected from customers

are remitted to governmental authorities are not included in revenue, and are reflected as a liability on the consolidated balance sheets.

Rights of Return, Stock Rotation Rights, and Price Protection

The Company offers limited rights of return, stock rotation rights, and price protection under various policies and programs with its retailer and distributor

customers and end-users. Below is a summary of the general provisions of such policies and programs:

•

•
•
•
•

Retailers and distributors are generally allowed to return products that were originally sold through to an end-user under provisions of their contracts, called
“open-box” returns, and such returns may be made at any time after the original sale.
All purchases through Fitbit.com are covered by a 45-day right of return.
Certain distributors are allowed stock rotation rights which are limited rights of return of products purchased during a prior period, generally one quarter.
Certain distributors and retailers are allowed return rights for defective products.
Certain distributors are offered price protection that allows for the right to a partial credit for unsold inventory held by the distributor if the Company reduces
the selling price of a product.

The  Company  estimates  reserves  for  these  policies  and  programs  based  on  historical  experience,  and  records  the  reserves  as  a  reduction  of  revenue  and
accounts receivable. Through December 31, 2017 , actual returns have primarily been open-box returns. In addition, through 2017, the Company has had limited
price protection claims. On a quarterly basis, the amount of revenue that is reserved for future returns is calculated based on historical trends and data specific to
each reporting period. The historical trends consider product life cycles, new product introductions, market acceptance of products, product sell-through, the type
of customer, seasonality, and other factors. Return rates can fluctuate over time, but have been sufficiently predictable to allow the Company to estimate expected
future  product  returns.  The  Company  reviews  the  actual  returns  evidenced  in  prior  quarters  as  a  percent  of  related  revenue  to  determine  the  historical  rate  of
returns. The Company then applies the historical rate of returns to the current period revenue as a basis for estimating future returns. When necessary, the Company
also  provides  a  specific  reserve  for  products  in  the  distribution  channel  in  excess  of  estimated  requirements.  This  estimate  can  be  affected  by  the  amount  of  a
particular product in the channel, the rate of sell-through, product plans, and other factors. The Company also considers whether there are circumstances which
may result in anticipated returns higher than the historical return rate from direct customers and records an additional specific reserve as necessary. The estimates
and assumptions used to reserve for rights of return, stock rotation rights, and price protection have been accurate in all material respects and have not materially
changed in the past.

Sales Incentives

The Company offers sales incentives through various programs, consisting primarily of cooperative advertising and marketing development fund programs.
The Company records advertising and marketing development fund programs with customers as a reduction to revenue unless it receives an identifiable benefit in
exchange for credits claimed by the customer and can reasonably estimate the fair value of the identifiable benefit received, in which case the Company records it
as a marketing expense. The Company recognizes a liability and reduces revenue for rebates or other incentives based on the estimated amount of rebates or credits
that will be claimed by customers.

Cost of Revenue

Cost  of  revenue  consists  of  product  costs,  including  costs  of  contract  manufacturers  for  production,  shipping  and  handling  costs,  packaging,  warranty
replacement  costs,  fulfillment  costs,  manufacturing  and  tooling  equipment  depreciation,  warehousing  costs,  excess  and  obsolete  inventory  write-downs,  costs
related to the Fitbit Force product recall, and certain allocated costs related to management, facilities, and personnel-related expenses and other expenses associated
with supply chain logistics.

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Advertising Costs and Point of Purchase (“POP”) Displays

Costs  related  to  advertising  and  promotions,  excluding  cooperative  advertising  costs,  are  expensed  to  sales  and  marketing  as  incurred.  Advertising  and
promotion expenses, including expenses for POP displays, for 2017 , 2016 , and 2015 were $226.3 million , $316.8 million , and $237.0 million , respectively. Co-
op advertising costs are recorded as a reduction to revenue, and for 2017 , 2016 , and 2015 were $45.0 million , $52.9 million , and $38.3 million , respectively.

The Company provides  retailers  with POP displays,  generally  free  of charge,  in order to facilitate  the  marketing  of the Company’s products within retail
stores.  Any amounts  capitalized  related  to  the  costs  of  the  POP displays  are  recorded  as  prepaid  expenses  and  other  current  assets  on  the  consolidated  balance
sheets and recognized as expense over the expected period of the benefit provided by these assets, which is generally 12 months. The related expenses are included
in sales and marketing expenses on the consolidated statements of operations.

Product Warranty

The Company offers a standard product warranty that its products will operate under normal use for a period of one -year from the date of original purchase,
except in the European Union and certain Asia Pacific countries where the Company provides a two -year warranty. The Company has the obligation, at its option,
to  either  repair  or  replace  a  defective  product.  At  the  time  revenue  is  recognized,  an  estimate  of  future  warranty  costs  is  recorded  as  a  component  of  cost  of
revenues. The estimate of future warranty costs is based on historical and projected warranty claim rates, historical and projected cost-per-claim and knowledge of
specific product failures, if any, that are outside of the Company’s typical experience. The Company regularly review these estimates to assess the appropriateness
of its recorded warranty liabilities and adjust the amounts as necessary. Factors that affect the warranty obligation include product failure rates, service delivery
costs incurred in correcting the product failures, and warranty policies. The Company’s products are manufactured by contract manufacturers, and in certain cases,
the Company may have recourse against such contract manufacturers. Should actual product failure rates, use of materials or other costs differ from the Company’s
estimates, additional warranty liabilities could be incurred, which could materially affect its results of operations. The estimates and assumptions used to reserve
for product warranty have been accurate in all material respects and have not materially changed in the past.

Fitbit Force Product Recall

The Company established reserves for the Fitbit Force recall when circumstances giving rise to the recall became known. It considered various factors in

estimating the product recall exposure. These include estimates for:

•

•

•

refunds  and  product  returns  from  retailer  and  distributor  customers  and  end-users,  which  were  charged  to  revenue  and  cost  of  revenue  on  the
consolidated statements of operations;
logistics and handling fees for managing product returns and processing refunds, obsolescence of on-hand inventory, cancellation charges for existing
purchase  commitments  and  rework  of  component  inventory  by  the  Company’s  contract  manufacturers,  accelerated  depreciation  of  tooling  and
manufacturing equipment, which were charged to cost of revenue on the consolidated statements of operations; and
legal fees and settlement costs, which were charged to general and administrative expenses on the consolidated statements of operations.

These factors above are updated and reevaluated each period and the related reserves are adjusted when factors indicate that the recall reserves are either

insufficient to cover or exceed the estimated product recall expenses.

Stock-Based Compensation

Stock-based compensation is measured at the grant date based on the fair value of the award and is recognized as expense over the requisite service period,
which is generally the vesting period of the respective award. Determining the fair value of stock-based awards at the grant date requires judgment. The fair value
of restricted stock units, or RSUs, is the fair value of the Company’s common stock on the grant date. The Company uses the Black-Scholes option-pricing model
to determine the fair value of stock options, warrants and shares issued under the 2015 Employee Stock Purchase Plan (the “2015 ESPP”).

The Company recognizes tax benefits related to stock-based compensation to the extent that the total reduction to its income tax liability from stock-based

compensation is greater than the amount of the deferred tax assets previously recorded in anticipation of these benefits.

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Segment Information

The  Company  operates  as  one operating  segment  as  it  only  reports  financial  information  on  an  aggregate  and  consolidated  basis  to  its  Chief  Executive

Officer, who is the Company’s chief operating decision maker.

Income Taxes

The Company utilizes the asset and liability method of accounting for income taxes, which requires the recognition of deferred tax assets and liabilities for
expected future consequences of temporary differences between the financial reporting and income tax bases of assets and liabilities using enacted tax rates. The
Company makes estimates, assumptions, and judgments to determine our expense (benefit) for income taxes and also for deferred tax assets and liabilities and any
valuation allowances recorded against its deferred tax assets. The Company assesses the likelihood that its deferred tax assets will be recovered from future taxable
income and, to the extent it believes that recovery is not likely, the Company establishes a valuation allowance.

The calculation of the Company’s income tax expense involves the use of estimates, assumptions, and judgments while taking into account current tax laws,
its interpretation of current tax laws, and possible outcomes of future tax audits. The Company has established reserves to address potential exposures related to tax
positions that could be challenged by tax authorities. Although the Company believes its estimates, assumptions, and judgments to be reasonable, any changes in
tax  law  or  its  interpretation  of  tax  laws  and  the  resolutions  of  potential  tax  audits  could  significantly  impact  the  amounts  provided  for  income  taxes  in  its
consolidated financial statements.

The U.S. Tax Cuts and Jobs Act of 2017 (the “2017 Tax Act”) was enacted on December 22, 2017, and includes several key tax provisions that affected the
Company, including a reduction of the statutory corporate tax rate from 35% to 21% effective for tax years beginning after December 31, 2017, elimination of the
carryback of net operating losses generated after December 31, 2017, and changes to how the United States imposes income tax on multinational corporations,
among others. The 2017 Tax Act requires complex computations to be performed that were not previously required in U.S. tax law, and preparation and analysis of
information not previously required or regularly produced, which require significant judgment in interpreting accounting guidance for such items that is currently
uncertain. In December 2017, the SEC staff issued Staff Accounting Bulletin No. 118, Income Tax Accounting Implications of the Tax Cuts and Jobs Act (“SAB
118”), which allows the Company to record provisional amounts during a measurement period not to extend beyond one year of the enactment date. The Company
has provided its best estimate of the impact of the 2017 Tax Act in its year-end income tax provision in accordance with its understanding of the 2017 Tax Act and
guidance  available  as  of  the  date  of  issuance  of  these  consolidated  financial  statements.  As  the  Company  completes  its  analysis  of  the  2017  Tax  Act,  any
subsequent adjustments to provisional amounts that it has recorded may or may not impact its provision for income taxes in the period in which the adjustments are
made due to a full valuation allowance on its U.S. deferred tax assets. The Company expects to complete its analysis within the measurement period in accordance
with SAB 118.

The calculation of the Company’s deferred tax asset balance involves the use of estimates, assumptions, and judgments while taking into account estimates
of the amounts and type of future taxable income. Actual future operating results and the underlying amount and type of income could differ materially from its
estimates, assumptions, and judgments, thereby impacting its financial position and operating results.

The Company includes interest and penalties related to unrecognized tax benefits within income tax expense. Interest and penalties related to unrecognized

tax benefits have been recognized in the appropriate periods presented.

Net Income (Loss) per Share Attributable to Common Stockholders

Basic  and  diluted  net  income  (loss)  per  share  attributable  to  common  stockholders  is  presented  in  conformity  with  the  two-class  method  required  for
participating securities. The Company considers its redeemable convertible preferred stock to be participating securities. The holders of the redeemable convertible
preferred stock did not have a contractual obligation to share in losses. In accordance with the two-class method, earnings allocated to these participating securities
and  the  related  number  of  outstanding  shares  of  the  participating  securities,  which  include  contractual  participation  rights  in  undistributed  earnings,  have  been
excluded from the computation of basic and diluted net income per share attributable to common stockholders. For the calculation of diluted net income per share,
net  income  attributable  to  common  stockholders  for  basic  net  income  per  share  is  adjusted  by  the  effect  of  dilutive  securities.  Diluted  net  income  per  share
attributable to common stockholders is computed by dividing the net income attributable to common stockholders by the weighted-average number of common
shares outstanding, including all potentially dilutive common shares, if the effect of such shares is dilutive.

In  connection  with  the  Company’s  Initial  Public  Offering  (“IPO”)  in  2015,  the  Company  established  two classes  of  authorized  common  stock:  Class  A
common stock and Class B common stock. As a result, all then-outstanding shares of common stock were converted into shares of Class B common stock. The
rights of the holders of Class A common stock and Class B common stock

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are  identical,  except  with  respect  to  voting  and  conversion.  Each  share  of  Class  A  common  stock  is  entitled  to  one vote  per  share  and  each  share  of  Class  B
common stock is entitled to ten votes per share. Each share of Class B common stock is convertible at any time at the option of the stockholder into one share of
Class A common stock, generally automatically converts into Class A common stock upon a transfer, and has no expiration date. The Company applies the two-
class method of calculating earnings per share, but as the dividend rights of both classes are identical, basic and diluted earnings per share are the same for both
classes.

As the Company was in a net loss position in 2017 and 2016, basic net loss per share attributable to common stockholders was the same as diluted net loss

per share attributable to common stockholders as the inclusion of all potential shares of common stock outstanding would have been anti-dilutive.

Recent Accounting Pronouncements

Accounting Pronouncements Not Yet Adopted

In May 2014, the Financial Accounting Standards Board (the “FASB”), issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606), which
affects any entity that either enters into contracts with customers to transfer goods and services or enters into contracts for the transfer of nonfinancial assets. ASU
2014-09 will replace most existing revenue recognition guidance in U.S. GAAP when it becomes effective. The standard’s core principle is that a company will
recognize  revenue  when  it  transfers  promised  goods  or  services  to  customers  in  an  amount  that  reflects  the  consideration  to  which  the  company  expects  to  be
entitled  in  exchange  for  those  goods  or  services.  In  doing  so,  companies  will  need  to  use  more  judgment  and  make  more  estimates  than  under  the  currently
effective guidance. These judgments may include identifying performance obligations in the contract, estimating the amount of variable consideration to include in
the transaction price and allocating the transaction price to each separate performance obligation. In April 2016, the FASB issued ASU 2016-10, which clarifies
guidance  on  identifying  performance  obligations  and  licensing  implementation.  The  Company  will  adopt  ASU  2014-09  effective  January  1,  2018,  utilizing  the
modified  retrospective  transition  method.  Upon  adoption,  the  Company  will  recognize  the  cumulative  effect  of  adopting  this  guidance  as  an  adjustment  to  its
opening  accumulated  deficit  balance.  The  Company  expects  this  adjustment  to  be  immaterial  to  its  consolidated  financial  statements.  Prior  periods  will  not  be
retrospectively adjusted. The Company has assessed the impact of the guidance, which includes evaluating customer contracts across the organization, developing
policies,  processes  and  tools  to  report  financial  results,  and  implementing  and  evaluating  the  Company’s  internal  control  over  financial  reporting  that  will  be
necessary under the new standard. The new standard may, in certain circumstances, impact the timing of when revenue is recognized for products shipped, and the
timing and classification of certain sales incentives, which are expected to generally be recognized earlier than historical guidance. In addition, the Company has
determined that the presentation of certain reserve balances currently shown net within accounts receivable will be presented as refund liabilities within current
liabilities  upon  adoption.  The  Company  has  also  determined  that  the  impact  of  accounting  for  costs  incurred  to  obtain  a  contract  is  immaterial.  The  Company
believes the new guidance is materially consistent with its historical revenue recognition policy. Overall, the Company does not currently expect the adoption to
have a material impact on its consolidated financial statements.

In January 2016, the FASB issued ASU No. 2016-01, F inancial Instruments – Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets
and  Financial  Liabilities  ,  which  updates  certain  aspects  of  recognition,  measurement,  presentation  and  disclosure  of  financial  instruments.  The  Company  will
adopt ASU 2016-01 in its first quarter of 2018. The Company is currently evaluating the impact of this guidance on its consolidated financial statements.

In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) . ASU 2016-02 requires lessees to recognize right-of-use assets and lease liabilities for
operating  leases,  initially  measured  at  the  present  value  of  the  lease  payments,  on  the  balance  sheet.  ASU  2016-02  will  become  effective  for  the  Company  on
January  1,  2019,  and  requires  adoption  using  a  modified  retrospective  approach.  The  Company  is  currently  evaluating  the  impact  of  this  guidance  on  its
consolidated financial statements. The Company anticipates that the adoption will have a material impact on its consolidated balance sheets, as it will now include
a right of use asset and a lease liability for the obligation to make lease payments related to substantially all operating lease arrangements; however, the Company
does not expect the adoption to have a material impact on its consolidated statements of operations.

In June 2016, the FASB issued ASU 2016-13,  Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments.
ASU 2016-13 provides for a new impairment model which requires measurement and recognition of expected credit losses for most financial assets and certain
other instruments, including but not limited to accounts receivable and available for sale debt securities. ASU 2016-13 will become effective for the Company on
January 1, 2020 and early adoption is permitted. The Company is currently evaluating the impact of this guidance on its consolidated financial statements.

In August 2016, the FASB issued ASU 2016-15,  Statement of Cash Flows (Topic 230) . ASU 2016-15 provides guidance intended to reduce diversity in
practice in how certain transactions are classified in the statement of cash flows. ASU 2016-15 provides guidance in a number of situation including, among others,
contingent consideration payments made after a business

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combination, proceeds from the settlement of insurance claims, distributions received from equity method investees, and classifying cash receipts and payments
that have aspects of more than one class of cash flows. ASU 2016-15 will become effective for the Company on January 1, 2018 and early adoption is permitted.
The Company does not currently expect the adoption of this guidance to have a material impact on its consolidated financial statements.

    In January 2017, the FASB issued ASU 2017-01,  Business Combinations (Topic 805): Clarifying the Definition of a Business . The purpose of ASU 2017-01 is
to  change  the  definition  of  a  business  to  assist  entities  with  evaluating  when  a  set  of  transferred  assets  and  activities  is  a  business.  ASU  2017-01  will  become
effective for the Company on January 1, 2018. The Company does not expect the adoption of this guidance to have a material impact on its consolidated financial
statements.

In  January  2017,  the  FASB issued  ASU  2017-04,    Intangibles-Goodwill  and  Other  (Topic  350):  Simplifying  the  Test  for  Goodwill  Impairment.   ASU
2017-04 simplifies the subsequent measurement of goodwill by eliminating the second step of the goodwill impairment test. The second step measures a goodwill
impairment loss by comparing the implied fair value of a reporting unit’s goodwill with the carrying amount of that goodwill. Under ASU 2017-04, a company will
record  an  impairment  charge  based  on  the  excess  of  a  reporting  unit’s  carrying  amount  over  its  fair  value.  ASU  2017-04  will  be  applied  prospectively  and  is
effective  for  annual  or  interim  goodwill  impairment  tests  in  fiscal  years  beginning  after  December  15,  2019.  Early  adoption  is  permitted  for  interim  or  annual
goodwill impairment tests performed on testing dates after January 1, 2017. The Company is currently evaluating the impact of this guidance on its consolidated
financial statements.

In May 2017, the FASB issued ASU 2017-09,  Compensation-Stock Compensation (Topic 718): Scope of Modification Accounting . ASU 2017-09 was issued to
clarify and reduce both (i) diversity in practice and (ii) cost and complexity when applying the guidance in Topic 718 to a change to the terms and conditions of a
share-based payment award. ASU 2017-09 will become effective for the Company on January 1, 2018 with early adoption permitted. The amendments to ASU
2017-09 should be applied prospectively to an award modified on or after the adoption date. The Company does not currently expect the adoption of this guidance
to have a material impact on its consolidated financial statements.

In August 2017, the FASB issued ASU 2017-12,  Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities.
ASU  2017-12  amends  the  hedge  accounting  rules  to  simplify  the  application  of  hedge  accounting  guidance  and  better  portray  the  economic  results  of  risk
management activities in the financial statements. The guidance expands the ability to hedge non-financial and financial risk components, reduces complexity in
fair  value  hedges  of  interest  rate  risk,  eliminates  the  requirement  to  separately  measure  and  report  hedge  ineffectiveness,  as  well  as  eases  certain  hedge
effectiveness  assessment  requirements.  ASU 2017-12 will become effective  for the Company on January 1, 2019 with early adoption permitted.  The Company
plans  to  early  adopt  this  new  guidance  in  the  first  quarter  of  2018  and  does  not  expect  the  adoption  will  have  a  material  impact  on  its  consolidated  financial
statements.

Accounting Pronouncements Recently Adopted

In March 2016, the FASB issued ASU 2016-09, Compensation-Stock Compensation (Topic 718). ASU 2016-09 simplifies several aspects of the accounting
for  share-based  payment  transactions,  including  the  income  tax  consequences,  classification  of  awards  as  either  equity  or  liabilities,  and  classification  on  the
statement of cash flows. Upon adoption, ASU 2016-09 requires that excess tax benefits for share-based payments be recorded as a reduction of income tax expense
and  reflected  within  operating  cash  flows,  rather  than  being  recorded  within  equity  and  reflected  within  financing  cash  flows.  ASU  2016-09  also  permits  the
repurchase  of  more  of  an  employee’s  shares  for  tax  withholding  purposes  without  triggering  liability  accounting,  clarifies  that  all  cash  payments  made  on  an
employee’s  behalf  for  withheld  shares  should  be  presented  as  a  financing  activity  on  the  Company’s  cash  flows  statement,  and  provides  an  accounting  policy
election to account for forfeitures as they occur. ASU 2016-09 became effective for the Company on January 1, 2017. The adoption of ASU 2016-09 resulted in a
cumulative effect adjustment of $4.9 million to increase retained earnings as of January 1, 2017, related to the recognition of previously unrecognized excess tax
benefits using the modified retrospective method. The Company elected to apply the change in presentation of excess tax benefits in the consolidated statement of
cash flows retrospectively, which resulted in an increase in net cash provided by operations and a decrease in net cash provided by financing activities of $29.2
million for 2016 and $32.1 million for 2015.  The Company also elected to make an accounting policy change to recognize forfeitures starting on January 1, 2017
on a prospective basis.

3.    Fair Value Measurements

Fair Value Measurement of Financial Assets and Liabilities

The carrying values of the Company’s accounts receivable and accounts payable, approximated their fair values due to the short period of time to maturity or

repayment.

The  following  tables  set  forth  the  Company’s  financial  instruments  that  were  measured  at  fair  value  on  a  recurring  basis  by  level  within  the  fair  value

hierarchy (in thousands):

Assets:

Money market funds

U.S. government agencies

Corporate debt securities

Total

Liabilities:

Derivative liabilities

Stock warrant liability

Level 1

Level 2

Level 3

Total

December 31, 2017

$

$

$

$

193,066   $

—   $

—  

—  

79,624  

291,582  

193,066   $

371,206   $

—   $

—  

—   $

2,138   $

—  

2,138   $

—   $

—  

—  

—   $

—   $

208  

208   $

193,066

79,624

291,582

564,272

2,138

208

2,346

 
 
 
 
 
 
 
 
   
   
   
 
   
   
   
 
Assets:

Money market funds

U.S. government agencies

Corporate debt securities

Derivative assets

Total

Liabilities:

Derivative liabilities

Level 1

Level 2

Level 3

Total

December 31, 2016

$

$

$

50,125   $

—   $

—  

—  

—  

86,526  

390,286  

10,625  

50,125   $

487,437   $

—   $

—  

—  

—  

—   $

50,125

86,526

390,286

10,625

537,562

—   $

3,780   $

—   $

3,780

The fair value of the Company’s Level 1 financial instruments is based on quoted market prices in active markets for identical instruments. The fair value of
the Company’s Level 2 financial instruments is based on observable inputs other than quoted prices in active markets for identical assets and liabilities, quoted
prices for identical or similar assets or liabilities in inactive markets, or other inputs that are observable or can be corroborated by observable market data.

In addition, Level 2 assets and liabilities  include  derivative  financial instruments  associated with hedging activity, which are further discussed in Note 4.
Derivative financial instruments are initially measured at fair value on the contract date and are subsequently remeasured to fair value at each reporting date using
inputs such as spot rates, forward rates, and discount rates. There is not an active market for each hedge contract, but the inputs used to calculate the value of the
instruments are tied to active markets.

There was no activity relating to Level 3 financial assets or liabilities during 2017 and 2016, and there were no Level 3 financial assets or liabilities as of

December 31, 2017 and 2016. There have been no transfers between fair value measurement levels during 2017 , 2016 and 2015 .

In 2017, the Company acquired an equity ownership interest in a privately-held company in exchange for $6.0 million in cash. This investment is accounted
for using the cost method of accounting since the Company is unable to exercise any significant influence. This investment has been recorded at historical cost,
classified within “other assets” on the Company’s consolidated balance sheet as of December 31, 2017, and is reviewed for events or changes in circumstances that
may have a significant adverse

75

 
 
 
 
 
 
 
   
   
   
 
   
   
   
 
Amortized
Cost
115,028   $

193,066  

79,722  

291,738  

Amortized
Cost
179,076   $

50,125  

86,533  

390,466  

Table of Contents

effect on its carrying value. There have been no changes in circumstances or identified events that may have a significant adverse effect on its carrying value.

4.    Financial Instruments

Cash, Cash Equivalents, and Marketable Securities

The Company’s marketable securities are classified as available-for-sale as of the balance sheet date and are reported at fair value with unrealized gains and
losses  reported,  net  of  tax,  as  a  separate  component  of  accumulated  other  comprehensive  income  (loss)  in  stockholders’  equity.  Because  the  Company  views
marketable securities as available to support current operations as needed, it has classified all available-for-sale securities as current assets. Realized gains or losses
and other-than-temporary impairments, if any, on available-for-sale securities are reported in other income (expense), net, as incurred.

Investments  are  reviewed  periodically  to  identify  potential  other-than-temporary  impairments.  No  impairment  loss  has  been  recorded  on  the  securities
included in the tables below because the Company believes that the decrease in fair value of these securities is temporary and expects to recover up to, or beyond,
the initial cost of investment for these securities.

The following table sets forth the cash, cash equivalents, and marketable securities as of December 31, 2017 (in thousands):

Cash

Money market funds

U.S. government agencies

Corporate debt securities

Total

$

$

Gross
Unrealized
Gains

Gross
Unrealized
Losses

Fair Value

Cash and
Cash
Equivalents

Marketable
Securities

—   $

—   $

115,028   $

115,028   $

—  

1  

15  

—  

(99)  

(171)  

193,066  

79,624  

291,582  

193,066  

6,595  

27,277  

679,554   $

16   $

(270)   $

679,300   $

341,966   $

The following table sets forth the cash, cash equivalents, and marketable securities as of December 31, 2016 (in thousands):

Cash

Money market funds

U.S. government agencies

Corporate debt securities

Total

$

$

Gross
Unrealized
Gains

Gross
Unrealized
Losses

Fair Value

Cash and
Cash
Equivalents

Marketable
Securities

—   $

—   $

179,076   $

179,076   $

—  

8  

24  

—  

(15)  

(204)  

50,125  

86,526  

390,286  

50,125  

—  

72,119  

706,200   $

32   $

(219)   $

706,013   $

301,320   $

The  gross  unrealized  gains  or  losses  on  marketable  securities  as  of    December  31,  2017   and    December  31,  2016   were  not  material.  There  were  no
available-for-sale investments as of  December 31, 2017 and December 31, 2016  that have been in a continuous unrealized loss position for greater than twelve
months on a material basis.

The following table classifies marketable securities by contractual maturities (in thousands):

Due in one year

Due in one to two years

Total

Derivative Financial Instruments

December 31, 2017

$

$

319,112   $

18,222  

337,334   $

December 31, 2016
355,152

49,541

404,693

The Company operates in foreign countries, which exposes it to market risk associated with foreign currency exchange rate fluctuations between the U.S.
dollar  and  various  foreign  currencies.  In  order  to  manage  this  risk,  the  Company  may  hedge  a  portion  of  its  foreign  currency  exposures  related  to  outstanding
monetary assets and liabilities as well as forecasted revenues and expenses, using foreign currency exchange forward or option contracts. In general, the market
risk related to these contracts is offset by corresponding gains and losses on the hedged transactions. The Company does not enter into derivative contracts for
trading or speculative purposes.

Cash Flow Hedges

The  Company  has  entered  into  foreign  currency  derivative  contracts  designated  as  cash  flow  hedges  to  hedge  certain  forecasted  revenue  and  expense
transactions denominated in currencies other than the U.S. dollar. The Company’s cash flow hedges consist of forward contracts with maturities of 12 months or
less.

The Company periodically assesses the effectiveness of its cash flow hedges. Effectiveness represents a derivative instrument’s ability to generate offsetting
changes in cash flows related to the hedged risk. The Company records the gains or losses, net of tax, related to the effective portion of its cash flow hedges as a
component of accumulated other comprehensive income (loss) in stockholders’ equity and subsequently reclassifies the gains or losses into revenue and operating
expenses  when the  underlying  hedged  transactions  are  recognized.  The  Company  records  the  gains  or  losses  related  to  the  ineffective  and  excluded  time  value
portion  of  the  cash  flow  hedges,  if  any,  immediately  in  other  income  (expense),  net.  If  the  hedged  transaction  becomes  probable  of  not  occurring,  the

—

—

73,029

264,305

337,334

—

—

86,526

318,167

404,693

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
corresponding amounts in accumulated other comprehensive income (loss) would immediately be reclassified to other income (expense), net. Cash flows related to
the Company’s cash flow hedging program are recognized as cash flows from operating activities in its statements of cash flows.

The Company had no outstanding contracts that were designated in cash flow hedges for forecasted revenue and expense transactions as of December 31,

2017 , and $20.0 million and $20.9 million of cash flow hedges for forecasted revenue and expense transactions, respectively, as of December 31, 2016 .

Balance Sheet Hedges

The Company enters into foreign exchange contracts to hedge monetary assets and liabilities that are denominated in currencies other than the functional
currency of its subsidiaries. These foreign exchange contracts are carried at fair value, do not qualify for hedge accounting treatment and are not designated as
hedging instruments. Changes in the value of the foreign exchange contracts are recognized in other expense, net and offset the foreign currency gain or loss on the
underlying net monetary assets or liabilities.

The net notional amount of foreign currency contracts open in U.S. dollar equivalents was $141.2 million and $177.0 million as of December 31, 2017 and

December 31, 2016 , respectively.

Fair Value of Foreign Currency Derivatives

The foreign currency derivative contracts that were not settled at the end of the period are recorded at fair value, on a gross basis, in the consolidated balance

sheets. The following table presents the fair value of the Company’s foreign currency derivative contracts as of the dates presented (in thousands):

Cash flow designated hedges

Cash flow designated hedges

Hedges not designated

Balance Sheet Location
Prepaid expense and other current
assets

  $

Accrued liabilities

Prepaid expense and other current
assets

Hedges not designated

Accrued liabilities

December 31, 2017

December 31, 2016

Fair
Value
Derivative
Assets

Fair
Value
Derivative
Liabilities

Fair
Value
Derivative
Assets

Fair
Value
Derivative
Liabilities

—   $

—  

—  

—  

—   $

—  

813   $

—  

—  

2,138  

9,812  

—  

—

1,428

—

2,352

3,780

Total fair value of derivative instruments

  $

—   $

2,138   $

10,625   $

76

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Financial Statement Effect of Foreign Currency Derivative Contracts

The following table presents the pre-tax  impact  of the Company’s foreign currency  derivative  contracts  on other comprehensive  income (“OCI”) and the

consolidated statement of operations for the periods presented (in thousands):  

Income Statement Location

2017

2016

2015

Year Ended
December 31,

Foreign exchange cash flow hedges:

Gain (loss) recognized in OCI—effective portion

  $

(19,436)   $

8,171   $

Gain (loss) reclassified from OCI into income—effective portion

Revenue

Gain (loss) reclassified from OCI into income—effective portion

Operating expenses

Gain (loss) recognized in income—ineffective portion

Gain (loss) recognized in income—excluded time value portion

Other income (expense), net  

Other income (expense), net  

(18,532)  

(1,405)  

21  

1,771  

10,153  

17  

(1,026)  

—  

2,785

2,183

(899)

202

—

Foreign exchange balance sheet hedges:

Gain (loss) recognized in income

Other income (expense), net   $

(10,516)   $

10,916   $

5,861

As of  December 31, 2017 , all net derivative gains related to the Company’s cash flow hedges will be reclassified from OCI into net income (loss) within the

next 12 months.

Offsetting of Foreign Currency Derivative Contracts

The Company presents its derivative assets and derivative liabilities at gross fair values in the consolidated balance sheets. The Company generally enters
into master netting arrangements, which mitigate credit risk by permitting net settlement of transactions with the same counterparty. The Company is not required
to pledge, and is not entitled to receive, cash collateral related to these derivative instruments.

The  following  table  sets  forth  the  available  offsetting  of  net  derivative  assets  and  net  derivative  liabilities  under  the  master  netting  arrangements  as  of

December 31, 2017 and December 31, 2016 (in thousands):

Gross Amounts Offset in the Consolidated Balance Sheets

Gross Amounts Not Offset in Consolidated Balance Sheets

Gross Amount
Recognized

Gross Amount
Offset

Net Amount
Presented

Financial
Instruments

Cash Collateral
Received

Net Amount

December 31, 2017

Foreign exchange contracts assets

$

Foreign exchange contracts liabilities

—   $

2,138  

—   $

—  

—   $

2,138  

—   $

—  

—   $

—  

—

2,138

Gross Amounts Offset in the Consolidated Balance Sheets

Gross Amounts Not Offset in Consolidated Balance Sheets

Gross Amounts
Recognized

Gross Amounts
Offset

Net Amount
Presented

Financial
Instruments

Cash Collateral
 Received

Net
Amount

December 31, 2016

Foreign exchange contracts assets

$

10,625   $

Foreign exchange contracts liabilities

3,780  

—   $

—  

10,625   $

3,780  

3,780   $

3,780  

—   $

—  

6,845

—

77

 
 
 
 
 
 
 
 
 
   
   
   
 
 
 
 
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

5.    Balance Sheet Components

Allowance for Doubtful Accounts and Revenue Returns Reserve

Changes in the allowance for doubtful accounts and revenue returns reserve were as follows (in thousands):

Balance at December 31, 2014

Increases

Write-offs/returns taken

Balance at December 31, 2015

Increases

Write-offs/returns taken

Balance at December 31, 2016

Increases (2)
Write-offs/returns taken (2)

Balance at December 31, 2017

(1) Increases in the revenue returns reserve include provisions for open box returns and stock rotations.
(2) Change primarily related to the Wynit bankruptcy. See Note 1 for additional information.

Inventories

Inventories consisted of the following (in thousands):

Components

Finished goods

Total inventories

Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets consisted of the following (in thousands):

POP displays, net

Prepaid expenses

Derivative assets

Prepaid marketing

Insurance receivable

Other

Total prepaid expenses and other current assets

78

Allowance for
Doubtful
Accounts

Revenue Returns
Reserve (1)

838  

1,115  

(128)  

1,825  

339  

(1,882)  

282  

30,551  

(21,604)  

$

9,229   $

26,559

169,677

(122,191)

74,045

275,815

(251,009)

98,851

229,610

(218,589)

109,872

December 31,

2017

2016

3,825   $

120,070  

123,895   $

1,035

229,352

230,387

December 31,

2017

2016

14,750   $

24,204  

—  

6,074  

37,300  

14,941  

97,269   $

22,804

17,161

10,625

5,764

—

9,511

65,865

$

$

$

$

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Property and Equipment, Net

Property and equipment, net, consisted of the following (in thousands):

Tooling and manufacturing equipment

Furniture and office equipment

Purchased and internally-developed software

Leasehold improvements

Total property and equipment

Less: Accumulated depreciation and amortization

Property and equipment, net

December 31,

2017

2016

66,854   $

20,942  

18,112  

58,431  

164,339  

(59,431)  

104,908   $

60,944

14,424

12,032

28,489

115,889

(39,336)

76,553

$

$

Total depreciation and amortization expense related to property and equipment, net was  $40.0 million and $36.0 million for 2017 and 2016 , respectively.

Goodwill and Intangible Assets

The changes in the carrying amount of goodwill were as follows (in thousands). See Note 12 for additional information.

Balance at December 31, 2015

Goodwill acquired

Balance at December 31, 2016

Goodwill acquired

Balance at December 31, 2017

Goodwill

22,157

28,879

51,036

—

51,036

$

$

$

The carrying amounts of the intangible assets as of  December 31, 2017 and December 31, 2016  were as follows (in thousands, except useful life). See Note
12 for additional information. During 2017, the development was completed for certain technology that was in-process at the time of its acquisition. Accordingly,
$3.9 million of in-process research and development recorded in the initial purchase price allocation has been reclassified to developed technology as of December
31, 2017.

December 31, 2017

December 31, 2016

Gross

Accumulated
Amortization

Net

Gross

Accumulated
Amortization

Net

$

30,588   $

(8,738)   $

21,850   $

26,092   $

(3,247)   $

22,845  

1,278  

(772)  

506  

1,278  

(542)  

736  

Weighted
Average
Remaining
Useful Life
(years)

4.0

0.9

Developed technology

Trademarks and other

Total finite-lived intangible assets
subject to amortization, net

In-process research and development

—  

—  

—  

31,866  

(9,510)  

22,356  

27,370  

3,940  

(3,789)  

—  

23,581    

3,940    

Total intangible assets, net

$

31,866   $

(9,510)   $

22,356   $

31,310   $

(3,789)   $

27,521    

Total amortization expense related to intangible assets was  $5.7 million and $2.1 million for 2017 and 2016 , respectively.

The estimated future amortization expense of acquired finite-lived intangible assets to be charged to cost of revenue and operating expenses after 2017 , is as

follows (in thousands):

79

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
   
   
   
 
 
Table of Contents

2018

2019

2020

2021

2022

Total intangible assets, net

Accrued Liabilities

Accrued liabilities consisted of the following (in thousands):

Product warranty

Accrued manufacturing expense and freight

Accrued sales incentives

Accrued sales and marketing

Accrued research and development

Accrued co-op advertising and marketing development funds

Employee-related liabilities

Sales taxes and VAT payable

Inventory received but not billed

Accrued legal settlements and fees

Derivative liabilities

Other

Accrued liabilities

Product warranty reserve activities were as follows (in thousands):

Balance at December 31, 2014

Charged to cost of revenue

Changes in estimate related to pre-existing warranties

Settlement of claims

Balance at December 31, 2015

Charged to cost of revenue

Changes in estimate related to pre-existing warranties

Settlement of claims

Balance at December 31, 2016

Charged to cost of revenue

Changes in estimate related to pre-existing warranties

Settlement of claims

Balance at December 31, 2017

Cost of
Revenue

Operating
Expenses

Total

6,120   $

5,340  

4,560  

4,560  

1,270  

230   $

230  

46  

—  

—  

6,350

5,570

4,606

4,560

1,270

21,850   $

506   $

22,356

$

$

December 31,

2017

2016

$

87,882   $

41,901  

111,592  

44,401  

8,983  

30,408  

33,266  

21,340  

10,526  

36,693  

2,138  

23,007  

$

452,137   $

99,923

75,579

74,181

41,948

5,989

40,002

13,934

8,891

7,363

3,963

3,780

15,008

390,561

Reserve For
Product
Warranty (1)

20,098

84,184

(8,968)

(55,102)

40,212

185,434

4,072

(129,795)

99,923

53,840

11,788

(77,669)

87,882

$

$

$

$

(1) Does not include reserves established as a result of the recall of the Fitbit Force. See the section titled “—Fitbit Force Recall Reserve” for additional information regarding such reserves.

80

 
 
 
 
 
 
 
 
 
 
 
Table of Contents

The Company corrected the allocation of customer support costs and freight and fulfillment to the amounts in “Charged to cost of revenue” and “Settlement
of claims” for the year ended December 31, 2016, which resulted in an increase in “Charged to cost of revenue” and “Settlement of claims” of  $50.7 million .
These costs are included in the warranty reserve beginning and ending balances. The Company does not consider this correction to be material and there was no
impact to its consolidated balance sheets, statement of operations, and statement of cash flows.

During  2017  and  2016,  changes  related  to  pre-existing  warranties  resulted  primarily  from  an  increase  in  the  estimated  cost  of  replacement  units.  During
2015, changes in estimate related to pre-existing warranties resulted from a reduction in the estimated number of units to be replaced and in the estimated cost of
replacement units based on additional historical experience.

Fitbit Force Recall Reserve

In March 2014, the Company announced a recall for one of its products, the Fitbit Force (“Fitbit Force Recall”). The product recall, which is regulated by the
U.S. Consumer Product Safety Commission, covered all Fitbit Force units sold since the product was first introduced in October 2013. The product recall program
has no expiration date.

As  a  result  of  the  Fitbit  Force  recall,  the  Company  established  reserves  that  include  cost  estimates  for  customer  refunds,  logistics  and  handling  fees  for
managing  product  returns  and  processing  refunds,  obsolescence  of  on-hand  inventory,  cancellation  charges  for  existing  purchase  commitments  and  rework  of
component inventory with the contract manufacturer, accelerated depreciation of tooling and manufacturing equipment, and legal settlement costs.

Fitbit Force recall reserve activities were as follows (in thousands):

Balance at December 31, 2014

Charged to cost of revenue

Charged to general and administrative

Settlement of claims

Balance at December 31, 2015

Settlement of claims

Balance at December 31, 2016

Settlement of claims

Balance at December 31, 2017

Reserve For
Fitbit Force
Recall

22,476

(5,755)

(1,174)

(10,425)

5,122

(3,869)

1,253

(789)

464

$

$

During 2015, a benefit to cost of revenue of $5.8 million was recognized due to a change in estimate of costs to fulfill Fitbit Force returns. In addition, a
benefit to legal expenses of $4.4 million was recognized in general and administrative  costs, of which $1.2 million was previously included in the Fitbit Force
recall reserve due to the settlement of Fitbit Force legal liabilities.

Restructuring

In  January  2017,  the  Company  announced  cost-efficiency  measures  to  be  implemented  in  2017  that  include  realigning  sales  and  marketing  spend  and
improved optimization of research and development investments. In addition, the Company announced a reorganization, including a reduction in workforce. This
reorganization  impacted  approximately  110 employees,  or  approximately  6% of the Company’s global workforce.  The Company recorded $6.4 million in total
restructuring expenses, substantially all of which were severance and related costs, in the first quarter of 2017. The Company completed the reorganization in the
fourth quarter of 2017.

The restructuring reserve activities were as follows (in thousands):

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Balance at December 31, 2016

Restructuring charges

Cash paid

Other - noncash

Balance at December 31, 2017

Restructuring Reserve
—
$

6,375

(4,983)

(1,392)

—

$

Accumulated Other Comprehensive Income (Loss)

The components and activity of accumulated other comprehensive income (“AOCI”), net of tax, were as follows (in thousands):

Unrealized Gains on Cash
Flow Hedges

Currency Translation
Adjustments

Unrealized Gains (Losses) on
Available-for-Sale
Investments

Total

Balance at December 31, 2015

Other comprehensive income (loss) before
reclassifications

Amounts reclassified from AOCI

Other comprehensive income (loss)

Balance at December 31, 2016

Other comprehensive income (loss) before
reclassifications

Amounts reclassified from AOCI

Other comprehensive income (loss)

Balance at December 31, 2017

$

$

751   $

(5)

  $

(55)

  $

691

9,422  

(10,650)  

(1,228)  

(477)  

(19,422)  

19,965  

543  

66   $

(309)

—  

(309)

(314)

314

—  

314

—   $

(126)

(6)

(132)

(187)

125

(13)

112

(75)

  $

8,987

(10,656)

(1,669)

(978)

(18,983)

19,952

969

(9)

6.    Long-Term Debt

2015 Credit Agreement

In December 2015, the Company entered into a second amended and restated credit agreement (the “Senior Facility”) with Silicon Valley Bank (“SVB”), as
administrative agent, collateral agent, and lender, SunTrust Bank as syndication agent, SunTrust Robinson Humphrey, Inc. and several other lenders to replace the
existing asset-based credit facility and cash flow facility. The Senior Facility allowed the Company to borrow up to $250.0 million , including up to $50.0 million
for the issuance of letters of credit and up to $25.0 million for swing line loans, subject to certain financial covenants and ratios. The Company has the option to
repay its borrowings under the Senior Facility without penalty prior to maturity. The Senior Facility requires the Company to comply with certain financial and
non-financial  covenants.  The  Senior  Facility  contains  customary  covenants  that  restrict  the  Company’s  ability  to,  among  other  things,  incur  additional
indebtedness,  sell  certain  assets,  guarantee  certain  obligations  of  third  parties,  declare  dividends  or  make  certain  distributions,  and  undergo  a  merger  or
consolidation  or  certain  other  transactions.  Obligations  under  the  Senior  Facility  are  collateralized  by  substantially  all  of  the  Company’s  assets,  excluding  its
intellectual property.

In  May  2017,  the  Company  entered  into  a  first  amendment  to  the  Senior  Facility  (the  “First  Amendment”),  pursuant  to  which  the  aggregate  amount  the
Company can borrow under the Senior Facility was reduced from $250.0 million to $100.0 million , with up to $50.0 million available for the issuance of letters of
credit and up to $25.0 million available for swing line loans. In addition, pursuant to the First Amendment, the applicable margin in respect of the interest rates
under the Senior Facility was amended to be based on the Company’s level of liquidity (defined as the sum of the Company’s aggregate cash holdings and the
amount available under its revolving commitments) and range from, with respect to Alternate Base Rate loans, 0.5% to 1.0% , and, with respect to LIBOR loans,
1.5%  to 2.0% . Among other changes, the First Amendment also removed the fixed charge coverage ratio covenant and the consolidated leverage ratio covenant,
and added a general liquidity covenant requiring the Company to maintain liquidity of at least $200.0 million in unrestricted cash, of which $100.0 million in cash
or cash equivalents must be held in accounts subject to control agreements with, and maintained by, SVB or its affiliates.

The Company was in compliance with the financial covenants under the Senior Facility as of  December 31, 2017 . As of December 31, 2017 , the Company
had no outstanding borrowings under the Senior Facility and had outstanding letters of credit totaling $36.9 million , issued to cover various security deposits on its
facility leases.

Capitalized  issuance  costs  are  amortized  to  interest  expense  over  the  term  of  the  related  financing  arrangement  on  a  straight-line  basis.  Interest  expense
related to issuance costs for 2017 , 2016 , and 2015 was $1.1 million , $0.5 million , and $1.0 million , respectively. As of December 31, 2017, capitalized issuance
costs were $0.6 million .

Letters of Credit

As of December 31, 2017 and 2016 , the Company had outstanding letters of credit of $36.9 million and $38.0 million , respectively, issued to cover the

security deposit on the lease of its office headquarters in San Francisco, California, and other facility leases.

7.    Commitments and Contingencies

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Leases

The Company’s principal facility is located in San Francisco, California. The Company also leases office space in various locations with expiration dates
between 2018 and 2024. The lease agreements often include leasehold improvement incentives, escalating lease payments, renewal provisions and other provisions
which require the Company to pay taxes, insurance, maintenance costs or defined rent increases. All of Company’s leases are accounted for as operating leases.

Rent expense is recorded over the lease terms on a straight-line basis. Rent expense was $40.0 million , $29.9 million , and $8.4 million for 2017 , 2016 , and

2015 , respectively.

Future minimum payments under the leases as of December 31, 2017 were as follows (in thousands):

Year ending December 31,
2018

2019

2020

2021

2022

Thereafter

Total

Purchase Commitments

$

Amounts

40,856

46,713

42,942

41,331

41,477

58,879

$

272,198

The aggregate amount of open purchase orders as of December 31, 2017 was approximately $157.7 million . The Company cannot determine the aggregate
amount  of  such  purchase  orders  that  represent  contractual  obligations  because  purchase  orders  may  represent  authorizations  to  purchase  rather  than  binding
agreements. The Company’s purchase orders are based on its current needs and are fulfilled by its suppliers, contract manufacturers, and logistics providers within
short periods of time.

During  the  normal  course  of  business,  the  Company  and  its  contract  manufacturers  procure  components  based  upon  a  forecasted  production  plan.  If  the
Company cancels all or part of the orders, or materially reduce forecasted orders, it may be liable to its suppliers and contract manufacturers for the cost of the
excess components purchased by its contract manufacturers. As of December 31, 2017 , $21.8 million was accrued for such liabilities to contract manufacturers.

Legal Proceedings  

Jawbone. On May 27, 2015, Aliphcom, Inc. d/b/a Jawbone (“Jawbone”), filed a lawsuit in the Superior Court of California in the County of San Francisco
against  the  Company  and  certain  of  its  employees  who  were  formerly  employed  by  Jawbone,  alleging  trade  secret  misappropriation  and  unfair  and  unlawful
business  practices  against  all  defendants,  and  alleging  breach  of  contract  and  breach  of  implied  covenant  of  good  faith  and  fair  dealing  against  the  employee
defendants. The complaint sought

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unspecified  damages,  including  punitive  damages  and  injunctive  relief.  On  June  23,  2016,  Jawbone  filed  a  Second  Amended  Complaint,  adding  an  additional
employee defendant and related allegations. The trial was currently scheduled for April 30, 2018.

On June 10, 2015, Jawbone and BodyMedia, Inc., a wholly-owned subsidiary of Jawbone (“BodyMedia”), filed a lawsuit against the Company in the U.S.
District  Court for the Northern District  of California  alleging  that the Company infringes  certain  U.S. patents. The complaint  sought unspecified  compensatory
damages and attorneys’ fees from the Company and to permanently enjoin the Company from making, manufacturing, using, selling, importing, or offering the
Company’s products for sale. The lawsuit was stayed pending resolution the investigation in the U.S. International Trade Commission (the “ITC”).

On July 7, 2015, Jawbone and BodyMedia filed a complaint with the ITC requesting an investigation into purported violations of the Tariff Act of 1930 by
the  Company  and  Flextronics  International  Ltd.  and  Flextronics  Sales  and  Marketing  (A-P)  Ltd.  The  complaint  makes  the  same  patent  infringement  and  trade
secret misappropriation claims as the two earlier cases. The complaint seeks a limited exclusion order and a cease and desist order halting the importation and sale
of the infringing products. The ITC instituted the investigation on August 17, 2015. As a result of motions, all of the patent infringement claims were dismissed
from the case. A trial on the trade secrets allegations took place from May 9 to 17, 2016. On August 23, 2016, the administrative law judge concluded that the
Company did not misappropriate any Jawbone trade secrets. On October 20, 2016, the ITC terminated the investigation in the ITC. Jawbone appealed the dismissal
of the patent infringement claims to the Federal Circuit. Oral argument was scheduled for November 9, 2017.

On  September  3,  2015,  the  Company  filed  a  complaint  for  patent  infringement  against  Jawbone  in  the  U.S.  District  Court  for  the  District  of  Delaware,
asserting that Jawbone’s activity trackers infringe certain U.S. patents. This case was transferred to the U.S. District Court for the Northern District of California.
The trial  was scheduled  for  July 13, 2020. On September  8, 2015, the Company filed  a complaint  for patent  infringement  against  Jawbone in the U.S. District
Court for the Northern District of California, asserting that Jawbone’s activity trackers infringe certain U.S. patents. No trial date was set. On October 29, 2015, the
Company  filed  a  complaint  for  patent  infringement  against  Jawbone  in  the  U.S.  District  Court  for  the  District  of  Delaware,  asserting  that  Jawbone’s  activity
trackers infringe certain U.S. patents. That case was also transferred to the U.S. District Court for the Northern District of California. No trial date was set.

On November 2, 2015, the Company filed a complaint with the ITC requesting an investigation into violations of the Tariff Act of 1930 by Jawbone and
Body Media. The complaint asserted that Jawbone’s products infringe certain U.S. patents. The complaint sought a limited exclusion order and a cease and desist
order halting the importation and sale of infringing products. The ITC instituted the investigation on December 1, 2015. On December 23, 2016, the Company filed
a motion to terminate the investigation, and the ITC terminated the investigation on February 1, 2017.

On December 8, 2017, the parties announced the global settlement of all of the outstanding civil litigation on confidential terms. Each of the pending cases

has been dismissed with prejudice.

On  August  12,  2016,  the  Company  was  notified  by  Jawbone  that  Jawbone  had  received  a  confidential  subpoena  from  the  U.S.  Attorney’s  Office  for  the
Northern District of California requesting certain of the Company’s confidential business information that appeared to be related to Jawbone’s allegations of trade
secret  misappropriation.  On  February  17,  2017,  the  Company  received  a  subpoena  for  documents  from  the  same  office.  On  February  1,  2018,  the  Company
received a second subpoena for documents. The Company is cooperating with the U.S. Attorney’s Office.

Sleep Tracking. On  May  8,  2015,  a  purported  class  action  lawsuit  was  filed  against  the  Company  in  the  U.S.  District  Court  for  the  Northern  District  of
California, alleging that the sleep tracking function available in certain trackers does not perform as advertised. Plaintiffs seek class certification, restitution, an
award  of  unspecified  compensatory  and  punitive  damages,  an  award  of  reasonable  costs  and  expenses,  including  attorneys’  fees,  and  other  further  relief  as  the
Court  may  deem  just  and  proper.  On  January  31,  2017,  plaintiffs  filed  a  motion  for  class  certification.  Plaintiffs’  motion  for  class  certification  was  granted  on
November  20,  2017.  On  April  20,  2017,  the  Company  filed  a  motion  for  summary  judgment.  The  Company’s  motion  for  summary  judgment  was  denied  on
December 8, 2017. Trial has been scheduled for April 30, 2018.

The Company believes that the plaintiffs’ allegations are without merit, and intends to vigorously defend against the claims. Because the Company is in the

early stages of this litigation matter, the Company is unable to estimate a reasonably possible loss or range of loss, if any, that may result from this matter.

Heart Rate Tracking . On January 6, 2016 and February 16, 2016, two purported class action lawsuits were filed against the Company in the U.S. District
Court for the Northern District of California, alleging that the PurePulse® heart rate tracking technology does not consistently and accurately record users’ heart
rates.  Plaintiffs  allege  common  law claims  as well as violations  of various  states’  false  advertising  and unfair competition  statutes,  and seek class  certification,
injunctive and declaratory relief,

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restitution, an award of unspecified compensatory damages, exemplary damages, punitive damages, and statutory penalties and damages, an award of reasonable
costs and expenses, including attorneys’ fees, and other further relief as the Court may deem just and proper. On April 15, 2016, the plaintiffs filed a Consolidated
Master Class Action Complaint and, on May 19, 2016, filed an Amended Consolidated Master Class Action Complaint. On January 9, 2017, the Company filed a
motion  to  compel  arbitration.  On  October  11,  2017,  the  Court  granted  the  motion  to  compel  arbitration.  Plaintiffs  filed  a  motion  for  reconsideration,  and  that
motion was denied on January 24, 2018.

The Company believes that the plaintiffs’ allegations are without merit, and intends to vigorously defend against the claims. Because the Company is in the

early stages of this litigation matter, the Company is unable to estimate a reasonably possible loss or range of loss, if any, that may result from this matter.

Securities  Litigation.  On  January  11,  2016,  a  putative  securities  class  action  was  filed  in  the  U.S.  District  Court  for  the  Northern  District  of  California
naming as defendants the Company, certain of its officers and directors, and the underwriters of the Company’s IPO. On May 10, 2016, the Court appointed the
Fitbit Investor Group (consisting of five individual investors) as lead plaintiff, and an Amended Complaint was filed on July 1, 2016. Plaintiffs allege violations of
the  Securities  Act  of  1933,  as  amended  (the  “Securities  Act”),  and  the  Securities  Exchange  Act  of  1934,  as  amended,  based  on  alleged  materially  false  and
misleading  statements  about  the  Company’s  products  between  October  27,  2014  and  November  23,  2015.  Plaintiffs  seek  to  represent  a  class  of  persons  who
purchased or otherwise acquired the Company’s securities (i) on the open market between June 18, 2015 and May 19, 2016; and/or (ii) pursuant to or traceable to
the IPO. Plaintiffs seek class certification, an award of unspecified compensatory damages, an award of reasonable costs and expenses, including attorneys’ fees,
and other further relief as the Court may deem just and proper. On July 29, 2016, the Company filed a motion to dismiss. The court denied the motion on October
26, 2016. On April 26, 2017, the Company filed a motion for summary judgment, which is still pending.

On  April  28,  2016,  a  putative  class  action  lawsuit  alleging  violations  of  the  Securities  Act  was  filed  in  the  Superior  Court  of  California,  County  of  San
Mateo, naming as defendants the Company, certain of its officers and directors, the underwriters of the IPO, and a number of its investors. Plaintiffs allege that the
IPO  registration  statement  contained  material  misstatements  about  the  Company’s  products.  Plaintiffs  seek  to  represent  a  class  of  persons  who  purchased  the
Company’s common stock in and/or traceable to the IPO and/or the November 2015 follow-on public offering (the “Secondary Offering”). Plaintiffs seek class
certification, an award of unspecified compensatory damages, an award of reasonable costs and expenses, including attorneys’ fees, and other further relief as the
Court may deem just and proper. On May 17, 2016, a similar class action lawsuit was filed in the Superior Court of California, County of San Francisco. The cases
have now been consolidated in the County of San Francisco. On April 7, 2017, the Court granted a motion to dismiss the Section 11 claim based on the Secondary
Offering and stayed the cases.

On January 8, 2018, the plaintiffs in the federal and class action cases filed their motion for preliminary approval of settlement of the putative federal and
state  class  actions  for  $33.3  million  .  The  settlement  remains  subject  to  further  court  approval.  On  January  19,  2018,  the  court  entered  an  order  preliminarily
approving the proposed settlement. A hearing is currently scheduled for April 20, 2018 to determine whether the settlement is fair, reasonable, and accurate. Refer
to Note 14. Subsequent Events for more information.

On November 11, 2016, a derivative lawsuit was filed in the U.S. District Court for the Northern District of California derivatively on behalf of the Company
naming as defendants certain of its officers and directors and as a nominal plaintiff the Company. Plaintiffs alleges breach of fiduciary duty, unjust enrichment,
section 14(a), and misappropriation based on the same set of alleged facts in the federal and state securities class action litigation. On February 2, 2017, a second
derivative lawsuit was filed in the U.S. District Court for the District of Delaware on the same allegations and also including claims for abuse of control, gross
mismanagement, and waste. On June 27, 2017, another derivative law suit was filed in the U.S. District Court for the Northern District of California on the same
allegations. The Courts have ordered a stay in all three cases.

On June 1, 2017 and June 9, 2017, two additional derivative lawsuits were filed in the Delaware Court of Chancery. Plaintiffs allege breach of fiduciary duty
and insider trading against certain defendants who sold shares in the IPO and/or the Secondary Offering. On August 3, 2017, another derivative lawsuit was filed in
the Delaware Court of Chancery on the same allegations. There is temporary stay in all three cases.

On October 31, 2017, a seventh derivative lawsuit was filed in the Superior Court of California, Country of San Francisco, on the same allegations. We have

not yet been served in that case.

On June 27, 2017, an individual investor lawsuit alleging violations of the Securities Act and state law claims for statutory fraud and unfair business practice

was filed in the Superior Court of California, County of Alameda, naming as defendants the

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Company and certain of its officers. The allegations are based on the same set of alleged facts in the federal and state securities class action litigation.

The  Company  believes  that  the  plaintiffs’  allegations  in  the  derivative  actions  and  individual  action  are  without  merit,  and  intends  to  vigorously  defend
against the claims. Because the Company is in the early stages of these litigation matters, the Company is unable to estimate a reasonably possible loss or range of
loss, if any, that may result from these matters.

Other. The  Company  is  and,  from  time  to  time,  may  in  the  future  become,  involved  in  other  legal  proceedings  in  the  ordinary  course  of  business.  The
Company currently believes that the outcome of any of these existing legal proceedings, including the aforementioned cases, either individually or in the aggregate,
will not have a material impact on the operating results, financial condition or cash flows of the Company. With respect to existing legal proceedings, the Company
has either determined that the existence of a material loss is not reasonably possible or that it is unable to estimate a reasonably possible loss or range of loss. The
Company may incur substantial legal fees, which are expensed as incurred, in defending against these legal proceedings.

Indemnifications

In  the  ordinary  course  of  business,  the  Company  enters  into  agreements  that  may  include  indemnification  provisions.  Pursuant  to  such  agreements,  the
Company may indemnify, hold harmless and defend an indemnified party for losses suffered or incurred by the indemnified party. Some of the provisions will
limit  losses  to  those  arising  from  third-party  actions.  In  some  cases,  the  indemnification  will  continue  after  the  termination  of  the  agreement.  The  maximum
potential amount of future payments the Company could be required to make under these provisions is not determinable. To date, the Company has not incurred
material costs to defend lawsuits or settle claims related to these indemnification provisions. The Company has also entered into indemnification agreements with
its directors and officers that may require the Company to indemnify its directors and officers against liabilities that may arise by reason of their status or service as
directors or officers to the fullest extent permitted by Delaware corporate law. The Company also currently has directors’ and officers’ insurance.

8.    Stockholders’ Equity

Initial public offering and follow-on offering

In  June  2015,  the  Company  completed  its  IPO  of  Class  A  common  stock,  in  which  the  Company  issued  and  sold    22.4 million  shares  and  certain  of  its
stockholders sold  19.7 million shares, for which the Company did not receive any proceeds, including  5.5 million shares pursuant to the underwriters’ option to
purchase additional shares. The shares were sold at an initial public offering price of  $20.00  per share for net proceeds of  $420.9 million  to the Company, after
deducting underwriting discounts and commissions of  $26.9 million . Offering costs incurred by the Company were approximately  $5.0 million .

In November 2015, the Company completed a follow-on offering of Class A common stock, in which the Company sold  3.0 million shares and certain of its
stockholders sold  16.6 million shares, for which the Company did not receive any proceeds, including  2.6 million shares pursuant to the underwriters’ option to
purchase additional shares. The shares were sold at a public offering price of  $29.00  per share for net proceeds of  $84.4 million  to the Company, after deducting
underwriting discounts and commissions of  $2.6 million . Offering costs incurred by the Company were approximately  $1.2 million .

Redeemable convertible preferred stock and redeemable convertible preferred stock warrants

In connection  with the Company’s IPO, the then-outstanding  141.3 million  shares of redeemable  convertible  preferred  stock  were  converted  into Class B
common stock upon the closing of the IPO. In addition, the then-outstanding 0.4 million redeemable convertible preferred stock warrants automatically converted
to Class B common stock warrants upon the closing of the IPO. These remaining outstanding Class B common stock warrants were exercised subsequent to the
IPO during 2015.

Preferred Stock

Upon completion of its IPO on June 22, 2015, the Company filed a Restated Certificate of Incorporation, which authorized the issuance of preferred stock
with rights and preferences, including voting rights, designated from time to time by the board of directors. As of December 31, 2017 , there were  10  million
shares of preferred stock authorized with a par value of $0.0001 per share, and no shares of preferred stock issued or outstanding.

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Common Stock

In connection with the IPO in 2015, the Company established two classes of authorized common stock, Class A common stock and Class B common stock.
All  shares  of  common  stock  outstanding  immediately  prior  to  the  IPO  were  converted  into  an  equivalent  amount  of  shares  of  Class  B  common  stock.  As  of 
December 31, 2017 , the Company had  600  million shares of Class A common stock authorized with a par value of $0.0001 per share and  350  million shares of
Class B common stock authorized with a par value of $0.0001 per share. As of  December 31, 2017 , the Company 207.5 million shares of Class A common stock
were issued and outstanding and  31.3 million shares of Class B common stock were issued and outstanding. As of December 31, 2016 , 177.2 million  shares of
Class A common stock were issued and outstanding and  48.5 million shares of Class B common stock were issued and outstanding.

Holders of Class A common stock are entitled to one vote for each share of Class A common stock held on all matters submitted to a vote of stockholders
and holders of Class B common stock are entitled to ten votes for each share of Class B common stock held on all matters submitted to a vote of stockholders.
Except  with  respect  to  voting,  the  rights  of  the  holders  of  Class  A  and  Class  B  common  stock  are  identical.  Shares  of  Class  B  common  stock  are  voluntarily
convertible into shares of Class A common stock at the option of the holder and generally automatically convert into shares of our Class A common stock upon a
transfer.

Stock Option Exchange

On  April  13,  2017,  the  Company  filed  its  definitive  proxy  statement,  submitting  to  stockholders  a  proposal  for  a  stock  option  exchange  program  (the
“Program”). The Program would allow the Company employees, including its executive officers other than its President, Chief Executive Officer, and Chairman,
Chief Technology Officer, and Chief Financial Officer (“Eligible Employees”), to exchange out-of-the-money or “underwater” options to purchase shares of the
Company’s Class A common stock or Class B common stock currently held by such Eligible Employees for a lesser number of restricted stock units (“RSUs”) that
may  be  settled  for  shares  of  its  Class  A  common  stock,  (“New  RSUs”),  under  the  Company’s  2015  Equity  Incentive  Plan  (the  “2015  Plan”).  Each  New  RSU
represents an unfunded right to receive one share of the Company’s Class A common stock on a date in the future, which generally is the date on which the New
RSU will vest. Eligible Employees participating in the Program would receive one New RSU for every two “out-of-the-money” options that they exchange. The
New RSUs would generally vest over the remaining vesting period of the exchanged option (subject to a one-year minimum vesting period). None of the members
of the Company’s board of directors were eligible to participate in the Program. On May 25, 2017, the Company’s stockholders approved the Program at the 2017
annual meeting of stockholders. The Company subsequently commenced the Program by filing a tender offer statement on Schedule TO with the Securities and
Exchange Commission on June 21, 2017. The Program expired on July 19, 2017. A total of 3.7 million “underwater” stock options were tendered by the Eligible
Employees, representing approximately 85% of the stock options eligible for exchange. On July 20, 2017, the Company granted an aggregate of 1.8 million New
RSUs under the 2015 Equity Incentive Plan (the “2015 Plan”) in exchange for the “underwater” stock options tendered. The completion of the Program resulted in
total incremental unrecognized stock-based compensation expense of $8.5 million , to be recognized over the greater of one year or the remaining vesting service
period of the tendered stock options.

2007 Equity Incentive Plan

The Amended and Restated 2007 Stock Plan (the “2007 Plan”) provided for the grant of incentive and non-statutory stock options and RSUs to employees,
directors, and consultants under terms and provisions established by the board of directors. Stock options granted under the 2007 Plan are generally subject to a
four -year vesting period, with 25% vesting after a one -year period and monthly vesting thereafter. Stock options expire after ten years. RSUs granted under the
2007 Plan are generally subject to a three - or four -year vesting period with annual vesting.

The 2015 Plan became effective in June 2015. As a result, the Company will not grant any additional stock options under the 2007 Plan and the 2007 Plan
has been terminated.  Any outstanding  stock  options and RSUs granted  under  the 2007 Plan will remain  outstanding,  subject  to the  terms  of the 2007 Plan and
applicable award agreements, until such shares are issued under those awards, by exercise of stock options or settlement of RSUs, or until the awards terminate or
expire by their terms.

2015 Equity Incentive Plan

In May 2015, the Company’s board of directors and stockholders adopted and approved the 2015 Plan. The 2015 Plan became effective in June 2015 and
serves as the successor to the 2007 Plan. The remaining shares available for issuance under the 2007 Plan became reserved for issuance under the 2015 Plan. The
number of shares reserved for issuance under the 2015 Plan will increase automatically on the first day of January of each year starting in 2016 through 2025 by
the number of shares of Class A common stock equal to 5% of the total outstanding shares of common stock as of the immediately preceding December 31. The

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share  reserve  may  also  increase  to  the  extent  that  outstanding  awards  expire  or  terminate  un-exercised.  As  of  December  31,  2017  , 12.5 million  shares  were
available for grant under the 2015 Plan.

The 2015 Plan authorizes the award of stock options, restricted stock awards, stock appreciation rights, RSUs, performance awards, and stock bonuses to
employees, directors, consultants, independent contractors, and advisors. In general, stock options and RSUs will vest over a three - or four -year period, and have
a maximum term of ten years. The exercise price of a stock option will be not less than 100% of the fair market value of the shares on the date of grant.

2015 Employee Stock Purchase Plan

In May 2015, the Company’s board of directors adopted the 2015 ESPP, which became effective in June 2015. The number of shares reserved for issuance
under the 2015 Plan will increase automatically on the first day of January of each year starting in 2016 through 2025 by the number of shares of Class A common
stock equal to 1% of the total outstanding shares of common stock as of the immediately preceding December 31. The 2015 ESPP allows eligible employees to
purchase shares of the Company’s Class A common stock at a discount through payroll deductions of up to  15% of eligible compensation, subject to any plan
limitations. Except for the initial offering period, the 2015 ESPP provides for 6-month offering periods beginning in May and November of each year. The initial
offering period began June 17, 2015, and ended in May 2016. As of December 31, 2017 , 4.5 million shares were available for grant under the 2015 Employee
Stock Purchase Plan.

On each purchase date, eligible employees will purchase Class A common stock at a price per share equal to 85% of the lesser of the fair market value of the
Company’s Class A common stock (i) on the first trading day of the applicable offering period and (ii) the last trading day of each purchase period in the applicable
offering period.

Stock Options

Activity under the 2007 Plan and 2015 Plan is as follows (in thousands except per share amounts):

Number of
Shares Subject
to
Stock Options

Stock Options Outstanding

Weighted–
Average
Exercise
Price

Weighted–
Average Remaining
Contractual Term
(in years)

Aggregate
Intrinsic
Value

Balance—December 31, 2016

Granted

Exercised

Canceled

Balance—December 31, 2017

Stock options exercisable—December 31, 2017

Stock options vested and expected to vest—December 31, 2017

34,454

1,150

(7,164)

(7,054)

21,386

16,827

21,386

  $

  $

  $

  $

  $

  $

  $

3.85    

5.63    

1.22    

9.35    

3.01  

2.52  

3.01  

5.7   $

5.3   $

5.7   $

64,582

57,472

64,582

The aggregate intrinsic values of stock options outstanding, exercisable, vested and expected to vest were calculated as the difference between the exercise

price of the stock options and the fair value of the Class A common stock of $5.71 as of December 31, 2017 .

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Restricted Stock Units

RSU activity under the equity incentive plans is as follows:

Unvested balance—December 31, 2016

Granted

Vested

Forfeited or canceled

Unvested balance—December 31, 2017

Warrants

RSUs
Outstanding

(in thousands)

11,578

  $

18,912

(6,191)

(5,111)

19,188

Weighted-
Average
Grant Date
Fair Value

16.85

6.47

12.57

12.61

9.13

On July 10, 2017, the Company issued a warrant to a third party vendor to purchase 0.5 million  shares of Class A common stock. The warrant is exercisable
based on service and performance-based conditions and has an exercise price of  $5.23  per share and a contractual term of ten years. As of December 31, 2017, 
0.1 million  shares have vested.

Stock-Based Compensation Expense

Total stock-based compensation recognized was as follows (in thousands):

Cost of revenue

Research and development

Sales and marketing

General and administrative

Total stock-based compensation expense

Year Ended December 31,

2017

2016

2015

$

$

5,312   $

4,797   $

54,123  

14,959  

17,187  

47,207  

11,575  

15,853  

91,581   $

79,432   $

4,739

18,251

7,419

10,615

41,024

The weighted-average grant date fair value of stock options granted during 2017 , 2016 , and 2015 was $5.63 , $14.06 , and $10.67 per share, respectively.
The total grant date fair value of stock options that vested during 2017 , 2016 , and 2015 was $20.2 million , $32.9 million , and $18.6 million , respectively. As of
December 31, 2017 , the total unrecognized compensation expense related to unvested stock options was $11.3 million , which the Company expects to recognize
over an estimated weighted average period of 1.4 years . As of December 31, 2017, the total unrecognized compensation expense related to unvested RSUs was
$159.0 million , which the Company expects to recognize over an estimated weighted average period of 2.2 years .

Stock-based compensation is measured at the grant date based on the fair value of the award and is recognized as expense over the requisite service period,
which is generally the vesting period of the respective award. The fair value of RSUs is the fair value of the Company’s Class A common stock on the grant date.
In determining the fair value of the stock options, warrants and the equity awards issued under the 2015 ESPP, the Company uses the Black-Scholes option-pricing
model and assumptions discussed below. Each of these inputs is subjective and generally requires significant judgment.

Fair Value of Common Stock —The fair value of the shares of common stock underlying stock options had historically been established by the Company’s
board of directors. Following the completion of the IPO, the Company began using the market closing price for the Company’s Class A common stock as reported
on the New York Stock Exchange.

Expected Term —The Company does not have sufficient historical exercise data to provide a reasonable basis upon which to estimate expected term due to
the  limited  period  of  time  stock-based  awards  have  been  exercisable.  As  a  result,  for  stock  options,  the  Company  used  the  simplified  method  to  calculate  the
expected term, which is equal to the average of the stock-based award’s weighted average vesting period and its contractual term. The expected term of the 2015
ESPP is based on the contractual term.

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Volatility  —The  Company  estimates  the  expected  volatility  of  the  common  stock  underlying  its  stock  options  at  the  grant  date  by  taking  the  average

historical volatility of the common stock of a group of comparable publicly traded companies over a period equal to the expected life of the stock options.

Risk-Free  Rate  —The  risk-free  interest  rate  is  estimated  average  interest  rate  based  on  U.S.  Treasury  zero-coupon  notes  with  terms  consistent  with  the

expected term of the awards.

Dividend Yield —The Company has never declared or paid any cash dividends and does not presently plan to pay cash dividends in the foreseeable future.

Consequently, it used an expected dividend yield of zero.

The assumptions used in calculating the fair value of the stock-based awards represent management judgment. As a result, if factors change and different
assumptions are used, the stock-based compensation expense could be materially different in the future. The fair value of the stock option awards, warrants and
awards  issued  under  the  2015  ESPP  granted  to  employees  was  estimated  at  the  date  of  grant  using  a  Black-Scholes  option-pricing  model  with  the  following
assumptions:

Employee stock options

Expected term (in years)

Volatility

Risk-free interest rate

Dividend yield

Warrants

Expected term (in years)

Volatility

Risk-free interest rate

Dividend yield

Employee stock purchase plan

Expected term (in years)

Volatility

Risk-free interest rate

Dividend yield

9.     Income Taxes

2017

6.25

32.2%

2.1%

—%

9.5

32.0%

2.1%

—%

0.5

27.7% - 31.3%

1.0% - 1.4%

—%

Year Ended December 31,

2016

6.25

40.7%

1.6%

—%

—

—%

—%

—%

0.5 

30.1% - 39.0%

0.4% - 0.6%

—%

2015

6.25

52.1% - 56.9%

1.5% - 1.9%

—%

—

—%

—%

—%

0.5 – 0.9

27.7% - 35.0%

0.3%

—%

The following table presents domestic and foreign components of income (loss) before income taxes for the periods presented (in thousands):

United States

Foreign

Total

Year Ended December 31,

2017

2016

2015

$

$

(158,187)   $

(36,457)  

5,577   $

(114,872)  

(194,644)   $

(109,295)   $

286,380

1,569

287,949

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The income tax expense (benefit) is composed of the following (in thousands):

Current:

Federal

State

Foreign

Total current

Deferred:

Federal

State

Foreign

Total deferred

Total income tax expense (benefit)

Year Ended December 31,

2017

2016

2015

$

(87,961)   $

78,782   $

(8,429)  

5,032  

(91,358)  

154,817  

18,902  

187  

173,906  

9,878  

5,256  

93,916  

(87,584)  

(11,622)  

(1,228)  

(100,434)  

$

82,548   $

(6,518)   $

140,396

13,307

1,107

154,810

(33,421)

(8,941)

(176)

(42,538)

112,272

The reconciliation of the Company’s effective tax rate to the statutory federal rate is as follows:

Tax at federal statutory rate

State taxes, net of federal effect

Foreign rate differential

Tax credits

Domestic production activities deduction
Stock-based compensation (1)

Change in prior year reserves

Out-of-period adjustment

Warrant fair value adjustment

Change in valuation allowance

Effect of change in tax rate due to Tax Act

Other

Effective tax rate

Year Ended December 31,

2017

2016

2015

35.0 %  

35.0 %  

35.0 %

(5.4)

(9.3)

4.1

(3.5)

(5.3)

(2.0)

—  

—  

(35.2)

(23.4)

2.6

(42.4)%  

4.3

(38.9)

9.0

5.0

(4.6)

1.9

(2.8)

—  

—  

—  

(2.9)

6.0 %  

1.5

(0.8)

(2.0)

(3.3)

1.7

—

—

6.9

—

—

—

39.0 %

 (1) Starting in 2017, excess tax benefits from share-based award activity are reflected as reduction of the provision for income taxes, whereas they were previously recognized in equity. This
will result in increased volatility in the Company’s effective tax rate. The amount of net stock compensation windfalls previously recognized by the Company in equity in 2015 and 2016 was
$32.1 million and $22.0 million, respectively.

For  2017,  the  Company  recorded  an  expense  for  income  taxes  of  $82.5  million  ,  resulting  in  an  effective  tax  rate  of  (42.4)% .  The  effective  tax  rate  is
different than the statutory federal tax rate primarily due to losses in certain foreign jurisdictions for which a tax benefit may not be realized and the establishment
of a full valuation allowance on its U.S. deferred tax assets, partially offset by the anticipated carryback of losses incurred in 2017.

On December 22, 2017, the U.S. Tax Cuts and Jobs Act of 2017 (the “2017 Tax Act”) was signed into law and includes several key tax provisions that
affected  the  Company,  including  a  reduction  of  the  statutory  corporate  tax  rate  from  35%  to  21%  effective  for  tax  years  beginning  after  December  31,  2017,
elimination of the carryback of net operating losses generated after December 31, 2017, and changes to how the United States imposes income tax on multinational
corporations, among others. The Company recorded a provisional tax expense for the impact of the 2017 Tax Act of approximately  $45.5 million as a result of re-
measurement of the federal portion of its deferred tax assets as of December 31, 2017 from 35% to the new 21% tax rate. As the Company completes its analysis of
the 2017 Tax Act, any subsequent adjustments to provisional amounts that it has recorded may or may not impact its provision for income taxes in the period in
which the adjustments are made due to a full valuation allowance on its U.S. deferred tax assets.

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The tax effects of temporary differences that give rise to significant portions of the deferred tax assets were as follows (in thousands):

Deferred tax assets:

Net operating losses and credits

Fixed assets and intangible assets

Accruals and reserves

Stock-based compensation

Inventory

Other

Total deferred tax assets

Less: valuation allowance

Deferred tax assets, net of valuation allowance

Deferred tax liabilities:

Other

Total deferred tax liabilities

Net deferred tax assets

December 31,

2017

2016

$

23,338   $

10,625  

49,886  

12,154  

4,345  

3,325  

103,673  

(99,570)  

4,103  

9,446

16,272

112,915

17,864

8,513

11,134

176,144

—

176,144

(369)  

(369)  

(353)

(353)

$

3,734   $

175,791

The  Company  accounts  for  deferred  taxes  under  ASC  Topic  740,  “Income  Taxes”  (“ASC  740”)  which  involves  weighing  positive  and  negative  evidence
concerning the realizability of the Company’s deferred tax assets in each jurisdiction. The Company evaluated its ability to realize the benefit of its net deferred tax
assets  and weighed  all  available  positive  and  negative  evidence  both objective  and  subjective  in nature.  In  determining  the  need  for  a  valuation  allowance,  the
weight given to positive and negative evidence is commensurate with the extent to which the evidence may be objectively verified. Consideration was given to
negative  evidence  such  as:  the  duration  and  severity  of  losses  in  prior  years,  high  seasonal  revenue  concentrations,  increasing  competitive  pressures,  and  a
challenging retail environment. Realization of the Company’s net deferred tax assets is dependent upon its generation of sufficient taxable income in future years in
appropriate tax jurisdictions to obtain benefit from the reversal of temporary differences, net operating loss carryforwards and tax credit carryforwards. The amount
of net deferred tax assets considered realizable is subject to adjustment in future periods if estimates of future taxable income change.

In evaluating the need for a valuation allowance, and determining that a valuation allowance was appropriate, the Company considered the fact that it has had
five  consecutive  quarters  of  losses  through  December  31, 2017  and  the  effect  of  the  recently  enacted  2017 Tax  Act.  As of  December  31, 2017  , the Company
established a valuation allowance of $99.6 million against its U.S. deferred tax assets. No valuation allowance has been recorded against the Company’s foreign
deferred tax assets. The Company will continue to assess the realizability of its deferred tax assets in each of the applicable jurisdictions going forward.

As  of  December  31,  2017,  the  Company  has  federal  net  operating  loss  carryforwards  of  $2.2  million  which  expire  beginning  after  2033,  California  net
operating loss carryforwards of $25.8 million which expire beginning after 2034, and other states net operating loss carryforwards of $27.2 million which expire
beginning after 2033. As of December 31, 2017, the Company has federal research tax credit carryforwards of approximately $1.6 million , which if not utilized,
begin to expire after 2030, California research tax credit carryforwards of approximately $25.6 million , which do not expire, Massachusetts research tax credit
carryforwards of approximately $1.2 million , which if not utilized, begin to expire after 2031, and California hiring tax credit carryforwards of approximately $0.3
million , which if not utilized, begin to expire after 2026. As of December 31, 2017, the Company has United Kingdom net operating loss carryforwards of $15.6
million , which do not expire.

Utilization  of  the  net  operating  loss  and  tax  credit  carry  forwards  are  subject  to  an  annual  limitation  due  to  the  ownership  percentage  change  limitations
provided by the Internal Revenue Code of 1986 and similar state provisions. The annual limitation may result in the expiration of the net operating loss before
utilization. The Company does not expect the limitation to result in a reduction in total amount utilizable.

The Company is subject to income taxes in the U.S. (federal and state) and numerous foreign jurisdictions. Significant judgment is required in evaluating the

Company’s tax positions and determining its provision for income taxes. During the ordinary

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course of business, there are many transactions and calculations for which the ultimate tax determination is uncertain. The Company establishes reserves for tax-
related  uncertainties  based  on  estimates  of  whether,  and  the  extent  to  which,  additional  taxes  will  be  due.  These  reserves  are  established  when  the  Company
believes that certain positions might be challenged despite its belief that its tax return positions are fully supportable. The Company adjusts these reserves in light
of changing facts and circumstances, such as the outcome of tax audits. The provision for income taxes includes the impact of reserve provisions and changes to
reserves that are considered appropriate. As of December 31, 2017 and 2016, the Company has $29.9 million and $35.6 million of unrecognized tax benefits. A
reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows (in thousands):

Balance at beginning of year

Reductions based on tax positions related to prior year

Additions based on tax positions related to prior year

Additions based on tax positions related to current year

Reductions due to tax authorities’ settlements

Reductions due to expiration of statutes of limitation

Balance at end of year

December 31,

2017

2016

2015

35,584   $

23,518   $

10,594

(6,335)  

108  

9,289  

(8,603)  

(105)  

(2,100)  

2,809  

11,357  

—  

—  

(18)

—

12,942

—

—

29,938   $

35,584   $

23,518

$

$

At December 31, 2017 , the total amount of gross unrecognized tax benefits was $29.9 million , of which $24.8 million would affect the Company’s effective
tax  rate  if  recognized.  The  Company  does  not  have  any  tax  positions  as  of  December  31,  2017  for  which  it  is  reasonably  possible  the  total  amount  of  gross
unrecognized  tax  benefits  will  increase  or  decrease  within  the  following  12  months  .  The  Company’s  policy  is  to  record  interest  and  penalties  related  to
unrecognized  tax  benefits  as  income  tax  expense.  As  of  December  31,  2017  and  2016,  the  Company  has  accrued  and  $2.4 million and $2.2 million related to
interest and penalties.

The  Company is  subject  to  taxation  in  the  United  States  and  various  states  and foreign  jurisdictions.  The  material  jurisdictions  in  which  the Company  is
subject to potential examination include the United States and Ireland. The Company believes that adequate amounts have been reserved for these jurisdictions. For
federal, state and non-U.S. tax returns, the Company is generally no longer subject to tax examinations for years prior to 2015.

10.    Net Income (Loss) per Share Attributable to Common Stockholders

The  following  table  sets  forth  the  computation  of  the  Company’s  basic  and  diluted  net  income  (loss)  per  share  attributable  to  common  stockholders  (in

thousands, except per share amounts):

Numerator:

Net income (loss)

Less: noncumulative dividends to preferred stockholders

Less: undistributed earnings to participating securities

Net income (loss) attributable to common stockholders—basic

Add: adjustments to undistributed earnings to participating securities

Net income (loss) attributable to common stockholders—diluted

Denominator:

Weighted-average shares of common stock—basic for Class A and Class B

Effect of dilutive securities

Weighted-average shares of common stock—diluted for Class A and Class B

Net income (loss) per share attributable to common stockholders:

Basic

Diluted

92

Year Ended December 31,

2017

2016

2015

$

$

$

$

(277,192)   $

(102,777)   $

—  

—  

—  

—  

(277,192)  

(102,777)  

—  

—  

(277,192)   $

(102,777)   $

232,032  

—  

232,032  

220,405  

—  

220,405  

(1.19)   $

(1.19)   $

(0.47)   $

(0.47)   $

175,677

(2,526)

(59,133)

114,018

8,821

122,839

129,886

34,327

164,213

0.88

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The following potentially dilutive common shares on a weighted average basis were excluded from the computation of diluted net income (loss) per share for

the periods presented because including them would have been antidilutive (in thousands):

Stock options to purchase common stock

RSUs

Warrants

Diluted common stock subject to vesting

Diluted impact of ESPP

Redeemable stock unites

Redeemable convertible preferred stock warrants

Total

2017

December 31,

2016

2015

17,469  

10,030  

216  

84  

162  

—  

—  

34,454  

11,578  

—  

—  

—  

—  

—  

27,961  

46,032  

445

692

—

—

—

65,903

921

67,961

11.    Significant Customer Information and Other Information

Retailer and Distributor Concentration

Retailers and distributors with revenue equal to or greater than 10% of total revenue were as follows:

C

A

B
*

C

B

E

A

D
*

 Revenue was less than 10%.

Retailers and distributors that accounted for equal to or greater than 10% of accounts receivable at December 31, 2017 and 2016 were as follows:

2017

December 31,

2016

2015

13%  

*

*

14%  

14

10

December 31,

2017

2016

17%  

13

11

*

*

14%

15

14

19%

*

*

16

12

 Accounts receivable were less than 10%.

Geographic and Other Information

Revenue by geographic region, based on ship-to destinations, was as follows (in thousands):

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United States

Americas excluding United States

Europe, Middle East, and Africa

APAC

Total

2017

December 31,

2016

2015

$

$

944,052   $

1,539,600   $

1,381,152

116,330  

440,135  

115,002  

110,111  

389,154  

130,596  

92,252

208,767

175,827

1,615,519   $

2,169,461   $

1,857,998

As of December 31, 2017 and 2016 , long-lived assets, which represent property and equipment, located outside the United States were $30.0 million and

$30.1 million , respectively.

12. Acquisitions

2016 Acquisitions

In December 2016, the Company completed a purchase of certain assets from Pebble Industries, Inc., a privately-held company, which was accounted for as a
business combination, for total cash consideration of $23.4 million , of which $9.6 million was allocated to developed technology intangible assets, $14.4 million
to goodwill, and $0.6 million to assumed liabilities. Approximately  $3.5 million  of the consideration payable to Pebble Industries, Inc. was held as partial security
for certain indemnification obligations, and will be held back for payment until March 2018. The acquisition is expected to enhance the features and functionality
of the Company’s devices. The amortization period of the acquired developed technology is approximately 5 years . Goodwill is deductible for tax purposes.

In December 2016, the Company completed a purchase of certain assets from Vector Watch S.R.L., a privately-held company, which was accounted for as a
business combination, for total cash consideration of $15.0 million , of which $3.9 million was allocated to developed technology intangible assets, $11.4 million
to goodwill, and $0.3 million to assumed liabilities. Approximately $2.3 million  of the consideration payable to Vector Watch S.R.L. was held as partial security
for  certain  indemnification  obligations,  and  will  be  held  back  for  payment  until  December  2018.  The  acquisition  is  expected  to  enhance  the  features  and
functionality of the Company’s devices. The amortization period of the acquired developed technology is approximately 2.5 years . Goodwill is deductible for tax
purposes.

In  May  2016,  the  Company  completed  a  purchase  of  certain  assets  from  Coin,  Inc.,  a  privately-held  company,  which  was  accounted  for  as  a  business
combination, for total cash consideration of $7.0 million , of which $3.9 million was allocated to in-process research and development intangible assets, and $3.1
million to goodwill. The acquisition is expected to enhance the features and functionality of the Company’s devices. In-process research and development is not
amortized until the completion or abandonment of the related development. Goodwill is deductible for tax purposes.

FitStar Acquisition — 2015

In March 2015, the Company acquired all of the outstanding securities of FitStar, Inc., a privately-held company, for aggregate acquisition consideration of
$32.5 million , comprised of $13.3 million related to the issuance of 1,059,688  shares of the Company’s common stock, net of a repurchase of  24,949  shares,
$11.5 million of cash, and $7.7 million of contingent consideration. FitStar is a provider of interactive video-based exercise experiences on mobile devices and
computers that utilize proprietary algorithms to adjust and customize workouts for individual users. The acquisition is expected to enhance the Company’s software
and services offerings.

Under the acquisition agreement, the Company was obligated to issue additional common stock or pay cash to FitStar shareholders. The actual amount of
this contingent  consideration  depended on market-based  events that may occur in the future. The Company determined the fair market value of this contingent
consideration to be $7.7 million as of the acquisition date using the Monte Carlo simulation method. The fair value of this liability was adjusted at each reporting
period, and the change in fair value was included in other income (expense), net on the consolidated statement of operations. As a result of the Company’s IPO, the
Company recorded a change in fair value of $7.7 million as a benefit and as of December, 31, 2015 the fair value of the contingent consideration liability was zero
.  The  terms  related  to  the  contingent  consideration  have  expired  as  of  December  31,  2015  and  no  amounts  were  paid  or  shares  issued  for  the  contingent
consideration.

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The following table summarizes the fair value of assets acquired and liabilities assumed (in thousands):

Goodwill

Developed and core technology

Customer relationships

Trademarks

Assumed liabilities, net of assets

Total

$

$

22,157

12,640

128

1,150

(3,552)

32,523

The  amortization  periods  of  the  acquired  developed  technology,  customer  relationships,  and  trademarks  are  7.0  years  ,  1.3  years  ,  and  5.0  years  ,

respectively. Goodwill is not deductible for tax purposes.

In addition,  upon acquisition,  the Company issued  308,216  shares  of  common  stock  net  of  a  repurchase  of  24,948  shares, valued at  $4.2 million . The
Company  is  also  obligated  to  make  cash  payments  up  to  $1.2  million  .  Both  the  common  stock  and  the  cash  payments  are  additional  consideration  which  is
contingent upon former employees of FitStar continuing to be employed by the Company. As such, this additional consideration was not part of the purchase price
and is recognized as post-acquisition compensation expense over the related requisite service period.

The Company recorded acquisition-related transaction costs of $1.3 million and $0.3 million , which were included in general and administrative expenses in

the consolidated statement of operations during 2016 and 2015, respectively.

The results of operations for the acquired companies during 2016 and 2015 are included in the accompanying consolidated statements of operations from the
date  of  acquisition.  Pro  forma  and  historical  results  of  operations  for  the  acquired  companies  have  not  been  presented  because  they  are  not  material,  either
individually or in the aggregate, to the Company’s consolidated financial statements.

13.    Selected Unaudited Quarterly Financial Data

The following tables show a summary of the Company’s unaudited quarterly financial information for each of the four quarters of 2017 and 2016 (in

thousands, except per share amounts):

Revenue

Gross profit

Net loss

Net loss per share attributable to common stockholders—basic

Net loss per share attributable to common stockholders—diluted

Revenue

Gross profit

Net income (loss)

$

$

$

$

$

$

$

$

Net income (loss) per share attributable to common stockholders—basic $

December 31,
2017 (3)

September 30,
 2017 (2)

July 1,
2017

April 1,
2017 (1)

Three Months Ended

570,756   $

248,597   $

(45,470)   $

(0.19)   $

(0.19)   $

392,522   $

174,760   $

(113,403)   $

(0.48)   $

(0.48)   $

353,299   $

149,245   $

(58,240)   $

(0.25)   $

(0.25)   $

298,942

118,299

(60,079)

(0.27)

(0.27)

December 31,
2016

October 1,
 2016

July 2,
2016

April 2,
2016

Three Months Ended

573,775   $

126,502   $

(146,273)   $

(0.65)   $

503,802   $

240,658   $

26,120   $

0.12   $

586,528   $

244,969   $

6,341   $

0.03   $

505,356

233,755

11,035

0.05

0.05

Net income (loss) per share attributable to common stockholders—
diluted

$

(0.65)   $

0.11   $

0.03   $

95

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

(1)   During  the  first  quarter  of  2017,  the  Company  recorded  restructuring  expenses  of  $6.3  million  .  See  Note  5.  Balance  Sheet  Components  for  more
information. In addition, the Company’s adoption of ASU 2016-09 on January 1, 2017 resulted in an increase to the provision for income taxes of $2.8
million . See Note 2. Significant Accounting Policies for more information.

(2)   During the third quarter of 2017, as a result of one of the Company’s customers filing for bankruptcy, the Company recorded a net charge of $9.0 million
comprised of net bad debt expense of $7.6 million and net cost of revenue of $1.4 million . See Note 1. Customer Bankruptcy for more information. In
addition, during the third quarter of 2017, the Company recorded a  $111.4 million  valuation allowance against a portion of its U.S. deferred taxes.

(3)   During the fourth quarter of 2017, as a result of the Tax Act, the Company recorded a provisional tax expense for the impact of the 2017 Tax Act of $45.5

million as a result of re-measurement of the federal portion of its deferred tax assets as of December 31, 2017 from 35% to the new 21% tax rate.

14.    Subsequent Events

On January 8, 2018, the plaintiffs in the federal and state class action cases in the securities litigation filed a motion for preliminary approval of a global
settlement  of  all  of  the  putative  federal  and  state  class  actions  for  $33.3  million  .  On  January  19,  2018,  the  court  preliminary  approved  the  settlement.  The
Company  evaluated  this  subsequent  development  concluding  that  it  provided  additional  evidence  about  a  condition  that  existed  as  of  December  31,  2017.  The
Company accrued the entire amount of this liability and recorded the $33.3 million settlement expense within general and administrative expenses in 2017 since it
concluded that it was probable of payment and reasonably estimable. The Company maintains directors and officers liability insurance that covers the exposure
related  to  the  securities  litigation.  The  Company  recorded  an  insurance  receivable  based  on  an  analysis  of  its  insurance  policies,  including  its  exclusions,  an
assessment of the nature of the claim, and information from its insurance carriers. As of December 31, 2017, the Company has recorded an insurance receivable of 
$32.3 million , which is included in prepaid expenses and other current assets, associated with the amount it has concluded is probable related to the claim. The 
$32.3 million  insurance receivable allowed the Company to recover the settlement expense, resulting in a net charge of  $1.0 million  in its consolidated statement
of operations. The Company will continue to assess the probable amount of insurance proceeds expected to be received in future reporting periods until the final
resolution, and make adjustments, if necessary, based on additional facts as they arise.

In  February  2018,  the  Company  acquired  Twine  Health,  Inc.,  a  privately-held  company  with  a  health  coaching  platform  for  cash  consideration  of  $17.5

million . This acquisition is to be accounted for as a business combination. Management is currently evaluating the purchase price allocation for this transaction.

96

Table of Contents

Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure

None.

Item 9A. Controls and Procedures

Evaluation of Disclosure Controls and Procedures

We  maintain  “disclosure  controls  and  procedures,”  as  defined  in  Rules  13a-15(e)  and  15d-15(e)  under  the  Exchange  Act,  that  are  designed  to  ensure  that
information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported,
within the time periods specified in the SEC’s rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to
ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is accumulated and communicated to
the  company’s  management,  including  its  principal  executive  and  principal  financial  officers,  as  appropriate  to  allow  timely  decisions  regarding  required
disclosure.

Our management, with the participation of our Chief Executive Officer and our Chief Financial Officer, evaluated the effectiveness of our disclosure controls and
procedures as of December 31, 2017. Based on the evaluation of our disclosure controls and procedures as of December 31, 2017, our Chief Executive Officer and
Chief Financial Officer concluded that, as of such date, our disclosure controls and procedures were not effective due to the material weakness described below.

Management’s Report on Internal Control Over Financial Reporting

Our  management  is  responsible  for  establishing  and  maintaining  adequate  internal  control  over  financial  reporting  (as  defined  in  Rule  13a-15(f)  under  the
Exchange Act). Our management conducted an assessment of the effectiveness of our internal control over financial reporting based on the criteria established in
Internal  Control  -  Integrated  Framework  (2013)  issued  by  the  Committee  of  Sponsoring  Organizations  of  the  Treadway  Commission  (COSO).  A  material
weakness  is  a  deficiency,  or  combination  of  deficiencies,  in  internal  control  over  financial  reporting  such  that  there  is  a  reasonable  possibility  that  a  material
misstatement of our annual or interim financial statements will not be prevented or detected on a timely basis.

In connection with management’s assessment of our internal control over financial reporting, management determined that we did not maintain effective controls
over the accuracy of the inputs in the sales order entry process. Specifically, we did not sufficiently execute controls over the review of data inputs in the sales
order  entry  process  to ensure  accuracy  of the  price,  quantity,  and  related  customer  data.  This control  deficiency  did not result  in a misstatement;  however, this
control deficiency could result in a misstatement of revenue that would result in a material misstatement to the annual or interim consolidated financial statements
that would not be prevented or detected . Accordingly, our management has determined that this control deficiency constitutes a material weakness.

Because of this material weakness, our management has concluded that our internal control over financial reporting was not effective as of December 31, 2017,
based on the criteria in Internal Control Integrated Framework (2013) issued by the COSO.

The  effectiveness  of  our  internal  control  over  financial  reporting  as  of  December  31,  2017  has  been  audited  by  PricewaterhouseCoopers  LLP,  an  independent
registered public accounting firm, as stated in their report included in Part II, Item 8 of this Annual Report on Form 10-K.

Remediation Plans

We  have  identified  and  begun  implementing  a  remediation  plan  to  address  the  control  deficiencies  that  led  to  the  material  weakness.  Management’s  plan  to
remediate  this  material  weakness  includes  redesigning  controls  over  the  inputs  of  the  sales  order  entry  process,  adding  additional  resources,  and  reassessing
existing order entry controls and procedures.

The material weakness will not be considered remediated until the applicable measures have been implemented for a sufficient period of time and management has
concluded, through testing, that the enhanced control is operating effectively.

Changes in Internal Control over Financial Reporting

There was no change in our internal control over financial reporting identified in connection with the evaluation required by Rule 13a-15(d) and 15d-15(d) of the
Exchange Act that occurred during the three months ended December 31, 2017 that has materially affected, or is reasonably likely to materially affect, our internal
control over financial reporting.

Inherent Limitations on Effectiveness of Controls

Our management, including the CEO and CFO, recognizes that our disclosure controls or our internal control over financial reporting cannot prevent or detect all
possible instances of errors and all fraud. A control system, no matter how well designed and operated, can provide only reasonable, not absolute, assurance that
the control system’s objectives will be met. The design of a control system must reflect the fact that there are resource constraints, and the benefits of controls must
be considered relative to their costs.

Item 9B. Other Information

None.

Table of Contents

PART III

Item 10. Directors, Executive Officers and Corporate Governance

The information required for this Item is incorporated by reference from our Proxy Statement to be filed in connection with our 2018 Annual Meeting of
Stockholders within 120 days after the end of the fiscal year ended December 31, 2017 .

Item 11. Executive Compensation

The information required for this Item is incorporated by reference from our Proxy Statement to be filed in connection with our 2018 Annual Meeting of
Stockholders within 120 days after the end of the fiscal year ended December 31, 2017 .

Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

The information required for this Item is incorporated by reference from our Proxy Statement to be filed in connection with our 2018 Annual Meeting of
Stockholders within 120 days after the end of the fiscal year ended December 31, 2017 .

Item 13. Certain Relationships and Related Transaction, and Director Independence

The information required for this Item is incorporated by reference from our Proxy Statement to be filed in connection with our 2018 Annual Meeting of
Stockholders within 120 days after the end of the fiscal year ended December 31, 2017 .

Item 14. Principal Accounting Fees and Services

The information required for this Item is incorporated by reference from our Proxy Statement to be filed in connection with our 2018 Annual Meeting of
Stockholders within 120 days after the end of the fiscal year ended December 31, 2017 .

98

 
 
 
 
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PART IV

ITEM 15.    Exhibits, Financial Statement Schedules.

(a) The following documents are filed as part of this Annual Report on Form 10-K:

1. Consolidated Financial Statements

The financial statements filed as part of this Annual Report on Form 10-K are listed in the “Index to Consolidated Financial Statements” under Part
II, Item 8 of this Annual Report on Form 10-K.

2. Financial Statement Schedules

All schedules are omitted as the required information is inapplicable or the information is presented in the consolidated financial statements or notes
to consolidated financial statements under Item 8.

3. Exhibits

See Exhibit Index following the signature page of this Annual Report on Form 10-K.

99

 
 
 
 
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EXHIBIT INDEX

Exhibit
Number
3.1

  Exhibit Description
  Restated Certificate of Incorporation of Registrant.

3.2

4.1

4.2

4.3

10.1*

10.2*

10.3*

10.4*

10.5*

10.6*

10.7*

10.8*

10.9

10.10

10.11

  Restated Bylaws of Registrant.

  Form of Registrant’s Class A common stock certificate.

Third Amended and Restated Investors’ Rights Agreement by and among
the  Registrant  and  certain  stockholders  of  the  Registrant,  dated  June  6,
2013.

Warrant  to  Purchase  Stock  by  and  between  the  Registrant  and  Granite
Peak Technologies, LLC, dated July 10, 2017.

  Form of Indemnification Agreement.

Amended and Restated 2007 Stock Plan, as amended, and forms of award
agreements.

  2015 Equity Incentive Plan and forms of award agreements.

Form of Notice of Stock Option Grant and Stock Option Agreement under
the 2015 Equity Incentive Plan.

  2015 Employee Stock Purchase Plan.

Offer  Letter  by  and  between  the  Registrant  and  William  Zerella,  dated
April 24, 2014.

Offer  Letter  by  and  between  the  Registrant  and  Andy  Missan,  dated
March 15, 2013.

Offer Letter by and between the Registrant and Jeff Devine, dated January
26, 2017.

Office Lease by and between the Registrant and 405 Howard, LLC, dated
September 30, 2013.

Office Lease by and between the Registrant and GLL BIT Fremont Street
Partners, L.P., dated June 26, 2015.

Second  Amended  and  Restated  Credit  Agreement,  by  and  among  Fitbit,
Inc., the lenders party thereto and Silicon Valley Bank, as administrative
agent, dated December 10, 2015.

100

Form  
10-Q  

10-Q  

S-1/A  

Incorporated by Reference

File No.

  Exhibit

001-37444  

001-37444  

333-203941  

3.1  

3.2  

4.1  

4.2

S-1

333-203941

Filed
Herewith

Filing
Date
8/7/2015    

8/7/2015    

6/2/2015    

5/7/2015

10-Q

001-37444

10.1

11/3/2017

S-1  

S-1

S-1  

8-K

S-1  

S-1

333-203941  

10.1  

5/7/2015    

333-203941

10.2

5/7/2015

333-203941  

10.3  

5/7/2015    

001-37444

10.1

2/9/2016

333-203941  

10.4  

5/7/2015    

333-203941

10.5

5/7/2015

10-K

001-37444

10.8

2/29/2016

X

S-1

333-203941

10.6

5/7/2015

10-Q

001-37444

10.3

8/7/2015

8-K

001-37444

10.1

12/15/2015

 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
   
 
 
 
 
 
 
   
 
 
 
 
 
 
   
 
 
 
 
 
 
   
 
 
 
 
 
   
 
   
   
   
   
 
 
 
 
 
 
   
 
 
 
 
 
   
 
 
 
 
 
   
Table of Contents

Exhibit
Number

10.12

10.13

10.14*

10.15*

10.16*

10.17†

21.1

23.1

24.1

31.1

31.2

32.1◊

32.2◊

  Exhibit Description

First Amendment to Second Amended and Restated Credit Agreement, by
and among Fitbit, Inc., the lenders party thereto and Silicon Valley Bank,
as administrative agent, dated May 3, 2017.

Revolving Credit and Guaranty Agreement by and among Registrant, the
Guarantors party thereto, the Lenders party thereto, Morgan Stanley Bank
N.A., and Morgan Stanley Senior Funding, Inc., dated August 13, 2014.

  Form of Retention Agreement.

  Fitbit, Inc. Bonus Plan, as amended.

Global Notice of Stock Option Grant and Global Stock Option Agreement
under the 2015 Equity Incentive Plan.

Office Sublease, dated April 11, 2016, by and between the Registrant and
Charles Schwab & Co., Inc..

  List of Subsidiaries of Registrant.

Consent  of  PricewaterhouseCoopers  LLP,  independent  registered  public
accounting firm.

  Power of Attorney.

  Rule 13a-14(a)/ 15d-14(a) Certification of Chief Executive Officer.

  Rule 13a-14(a)/ 15d-14(a) Certification of Chief Financial Officer.

  Section 1350 Certification of Chief Executive Officer.

  Section 1350 Certification of Chief Financial Officer.

101.INS

  XBRL Instance Document.

101.SCH

  XBRL Schema Linkbase Document.

101.CAL

  XBRL Calculation Linkbase Document.

101.DEF

  XBRL Definition Linkbase Document.

101.LAB

  XBRL Extension Label Linkbase Document.

101.PRE

  XBRL Presentation Linkbase Document.

Incorporated by Reference

Form  
10-Q

File No.

001-37444

  Exhibit
10.1

Filing
Date
5/5/2017

Filed
Herewith

S-1

333-203941

10.9

5/7/2015

S-1/A  

333-203941  

10.10  

5/21/2015    

10-Q

001-37444

10.3

5/6/2016

10-Q

001-37444

10.1

8/4/2016

X

X

X

X

X

X

X

X

X

X

X

X

X

X

*
†
◊

Indicates a management contract or compensatory plan.

Portions of this exhibit have been granted confidential treatment by the SEC.
These certifications are deemed not filed for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or the Exchange Act, or otherwise subject to the liability of that
section, nor shall they be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act.

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its

behalf by the undersigned, thereunto duly authorized.

SIGNATURES

March 1, 2018

FITBIT, INC.

By:

/s/ James Park

James Park

President, Chief Executive Officer, and Chairman

 
 
   
 
 
 
 
 
 
 
 
   
 
 
 
 
 
   
 
   
   
   
   
 
 
 
 
 
 
   
 
 
 
 
 
   
   
   
   
   
 
 
   
   
   
   
 
   
   
   
   
 
   
   
   
   
 
   
   
   
   
 
   
   
   
   
 
   
   
   
   
 
   
   
   
   
 
   
   
   
   
 
   
   
   
   
 
   
   
   
   
 
   
   
   
   
 
   
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

POWER OF ATTORNEY

KNOW  ALL  PERSONS  BY  THESE  PRESENTS  that  each  individual  whose  signature  appears  below  constitutes  and  appoints  James  Park  and  William
Zerella, and each of them, his true and lawful attorneys-in-fact and agents with full power of substitution, for him and in his name, place, and stead, in any and all
capacities, to sign any and all amendments to this Annual Report on Form 10-K, and to file the same, with all exhibits thereto and other documents in connection
therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and
perform each and every act and thing requisite and necessary to be done in and about the premises, as fully to all intents and purposes as he might or could do in
person, hereby ratifying and confirming all that said attorneys-in-fact and agents or any of them, or his or their substitute or substitutes, may lawfully do or cause to
be done or by virtue hereof.

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant

and in the capacities and on the dates indicated.

Name

/s/ James Park

James Park

/s/ William Zerella

William Zerella

/s/ Eric N. Friedman

Eric N. Friedman

/s/ Laura J. Alber

Laura J. Alber

/s/ Jonathan D. Callaghan

Jonathan D. Callaghan

/s/ Glenda Flanagan

Glenda Flanagan

/s/ Steven Murray

Steven Murray

/s/ Christopher Paisley

Christopher Paisley

Title

Date

President, Chief Executive Officer, and Chairman

March 1, 2018

(Principal Executive Officer)

Chief Financial Officer

March 1, 2018

(Principal Financial and Accounting Officer)

Chief Technology Officer and Director

March 1, 2018

Director

Director

Director

Director

Director

March 1, 2018

March 1, 2018

March 1, 2018

March 1, 2018

March 1, 2018

 
 
 
 
 
 
 
  
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
January 26, 2017

PERSONAL AND CONFIDENTIAL

Jeff Devine Dear Jeff,

Fitbit, Inc. (the “Company”) is pleased to offer you the full-time position of EVP Operations reporting to CEO, James Park. We are excited
about the prospect of you joining our team, and look forward to the addition of your professionalism and experience to help the Company achieve its
goals.

You will be paid an annual salary of three hundred eighty-five thousand dollars ($385,000). Your salary will be paid in accordance with the
Company's normal payroll practices as established or modified from time to time. Currently, salaries are paid on a semi-monthly basis. In connection
with your employment, you will be eligible to participate  in benefits programs that have been adopted by the Company to the same extent as, and
subject to the same terms, conditions and limitations applicable to, other employees of the Company of similar rank and tenure.

In addition to your base salary, you will be eligible to receive an annual bonus of seventy- five percent (75%) of your base salary. Your actual
bonus  will  be  based  on  the  achievement  of  the  Company’s  financial  objectives  and  fulfillment  of  your  individual  performance  goals  that  will  be
established and evaluated by your manager on an annual basis. The bonus, if earned, will be paid out during the first quarter of the following calendar
year. You must be employed on the day that bonuses are paid in order to be eligible for a bonus. For your first calendar year of employment, your
bonus will be pro-rated to your start date. Employees who commence work after September 30 are not eligible for a bonus for that calendar year.

Subject  to  the  approval  of  the  Company’s  Board  of  Directors,  you  will  be  granted  125,000  restricted  stock  units  (“RSUs”)  under  the
Company’s 2015 Equity Incentive Plan (the “Plan”). Each RSU entitles you to receive one share of Fitbit, Inc. Class A Common Stock on the date of
vesting and, unlike traditional stock options, you do not need to pay any exercise price for the shares of the Company’s stock subject to the RSUs. The
RSU's will generally commence vesting on (i) the 15th day of the month of your date of hire, if you start on the 1st through the 15th day of the month,
or (ii) the 15th day of the month after your date of hire, if you start after the 15th of the month. Your RSUs will vest over 3 years, with 1/3rd of the
RSUs vesting on the one-year anniversary of the vesting commencement date, and 1/12th of the RSUs vesting quarterly thereafter over the next two
years. Vesting will, of course, depend on your continued employment with the Company.

By signing this offer, you represent that your employment with the Company and the performance of your duties does not and will not breach
any agreement entered into by you (i.e., you have not entered into any agreements with previous employers that conflict with your obligations to the
Company). Please provide us with a copy of any such agreements. You will also be required to sign an Employee Invention

Assignment and Confidentiality Agreement as a condition of your employment with the Company. A copy of this agreement will be made available to
you.

Notwithstanding  the  foregoing,  in  the  event  there  is  a  Change  of  Control  (as  defined  in  the  Plan)  and  in  connection  with  such  Change  of
Control or within 12 months following the closing of the Change of Control (i) Optionee’s employment is terminated by the Company (or a successor)
for a reason other than Cause (as defined in the Plan) or (ii) there is a Constructive Termination (as defined in Optionee’s Offer Letter) and Optionee
resigns within six months following such Constructive Termination, then 50% of any then remaining unvested shares subject to the Option shall upon
the date of such termination become immediately vested and exercisable.

Moreover, you will be required to provide the Company with documents  establishing your identity and right to work in the United States.

Those documents must be provided to the Company within three business days of your employment start date.

We  hope  that  this  will  be  the  beginning  of  a  long  and  rewarding  employment  relationship.  However,  you  are  not  being  promised  any
particular term of employment. You understand that your employment with the Company will be “at-will,” meaning that either you or the Company
may terminate your employment relationship at any time, for any reason, with or without prior notice. The Company also has the right to change, or
otherwise modify, in its sole discretion, the terms and conditions of your at-will employment, including your salary and benefits.

The  Company  reserves  the  right to  conduct  background  investigations  and/or  reference  checks  on  all  of  its potential  employees,  including
verification of criminal, education and/or employment background. Your offer of employment with Fitbit, therefore, is contingent upon a satisfactory
clearance of such a background investigation and/or reference check, if any.

This  letter,  together  with  the  Employee  Invention  Assignment,  Confidentiality  and  Arbitration  Agreement,  set  forth  the  terms  of  your
employment with the Company  and supersede  any prior representations, agreements, discussions, or offers between  the parties, whether  written or
oral.

We are very excited about having you join the Company. If you agree to the offer terms above, please sign below. If you have any questions
regarding  this  offer,  please  discuss  with  your  recruiter  or  contact  Human  Resources,  hr@fitbit.com. This  offer  shall  remain  open  until  February  6,
2017 after which, if not accepted, shall expire.

Sincerely,

James Park

Co-Founder & CEO Fitbit, Inc.

I have read and accept the terms and conditions of this offer.

Signed:

Jeff Devine

1/26/2017

Date

 
 
 
 
 
Bonus Plan, as amended through February 8, 2018

INTRODUCTION

1.

2.

EFFECTIVE  DATE;  OBJECTIVE:   This  Bonus  Plan  (“Plan”)  shall  be  effective  as  of  January  1,  2016,  and  is
effective for calendar year 2016 and each year thereafter (each, an “Eligibility Period”), unless otherwise amended or
terminated  by  Fitbit,  Inc.  (“Fitbit”  or  the  “Company”)  in  accordance  with  the  Plan.  The  Plan  supersedes  all  prior
bonus plans. The objective of the Plan is to financially incentivize and reward employees based upon the Company’s
performance and for their individual contributions to the success of Fitbit.

ADMINISTRATION.  The Plan shall be administered by the Compensation Committee of the Board of Directors
(the  “Plan  Administrator”),  which  shall  have  the  discretionary  authority  to  interpret  and  administer  the  Plan,
including all terms defined herein, and to adopt rules and regulations to implement the Plan, as it deems necessary.
In  addition,  the  Plan  Administrator  hereby  delegates  to  the  Company’s  CEO,  CFO  and  the  Head  of  Human
Resources or such other officers of the Company approved by the Company’s CEO (such individuals, the “Executive
Administrators” and together with the Plan Administrator, the “Administrators”) the approval of payouts under the
Plan to employees other than Fitbit’s “executive officers” (as determined by the Board of Directors for purposes of
Section 16 under the Securities Exchange Act of 1934).. All of the foregoing may also be approved by the Board of
Directors. For covered employees within the meaning of Internal Revenue Code (“Code”) Section 162(m), the Plan
Administrator may choose to take applicable actions in conformance with the requirements of Code Section 162(m).
Any  action  that  requires  the  approval  of  the  Executive  Administrators  must  be  approved  unanimously,  and  any
action  that  may  be  approved  by  the  Executive  Administrators  may  instead  also  be  approved  by  the  Plan
Administrator. The decisions of the Administrators are final and binding and shall be given the maximum deference
permitted by law.

 
 
 
 
 
 
 
3.

4.

5.

6.

PARTICIPANTS:  Participation in the Plan is limited to Full-Time regular and Part-Time regular   Fitbit employees
who are employed  by Fitbit on or before the start of the applicable  Eligibility  Period who are not covered by any
other  bonus,  commission,  or  incentive  plan  (“Participants”).  Participation  in  the  Plan  is  effective  on  the  later  of
January  1,  2016  or  the  applicable  subsequent  calendar  year  or  the  day  the  Participant  commences  as  a  Full-
Time/Part-Time regular employee of Fitbit. A Participant may be considered ineligible for the Plan at any time and
for  any  reason  at  the  Administrators’  discretion  regardless  of  whether  he  or  she  remains  an  employee  of  the
Company. This Plan is intended to compensate individuals for performance as well as encourage employee retention
through  and  until  the  date  the  bonus  is  paid;  retention  is  therefore  a  key  component  of  Plan  eligibility.  This  Plan
excludes employees who are not expressly classified by Fitbit as “regular,” including but not limited to temporary
employees.

CHANGES IN PLAN:  The Company reserves the right, in its sole discretion, to modify or terminate the Plan in
total or in part, at any time. Any such change must be in writing and approved by the Plan Administrator. However,
no modification or termination shall apply retroactively as to cause a forfeiture of an earned Bonus.

INTERPRETATION  OF  PLAN:   In  the  event  of  a  question  or  dispute  involving  the  interpretation  or
administration of the Plan, the Plan Administrator will interpret and administer the Plan. The decision of the Plan
Administrator shall be made based upon its sole discretion, and shall be final and binding. All inquiries should be in
writing to the Head of Human Resources, who will forward the inquiry to the Plan Administrator for consideration
and decision within 30 business days.
ENTIRE  AGREEMENT:   This  Plan  is  the  entire  plan  between  Fitbit  and  Participants  and  supersedes  all  prior
compensation or incentive plans or any written or verbal representations regarding the subject matter of this Plan.

BONUS PLAN ELEMENTS

7.

BONUS POOL.  Each Eligibility Period, the Plan Administrator, in its sole discretion, will establish a Bonus Pool,
which may be established before, during or after the applicable Eligibility Period. Actual awards will be paid from
the Bonus Pool.

 
 
 
 
8.

9.

DISCRETION TO DETERMINE CRITERIA . The Plan Administrator will, in its sole discretion, determine the
performance  goals  applicable  to  any  award  which  shall  be  selected  from  the  Performance  Factors  set  forth  in  the
2015 Equity Incentive Plan. The goals may be on the basis of any such factors the Plan Administrator  determines
relevant, and may be on an individual, divisional, business unit or Company-wide basis. Performance goals may be
measured over the period of time determined by the Plan Administrator in its sole discretion. An Eligibility Period
may be divided into one or more shorter periods if, for example, but not by way of limitation, the Plan Administrator
desires to measure some performance criteria over 12 months and other criteria over fewer months. The performance
goals may differ from Participant to Participant and from award to award. Failure to meet the goals will result in a
failure to earn the award, except as provided herein. As determined by the Plan Administrator, the performance goals
may be based on GAAP or non-GAAP results and any actual results may be adjusted by the Plan Administrator for
one-time items, unbudgeted or unexpected items, acquisition-related activities or changes in applicable accounting
rules  when  determining  whether  the  performance  goals  have  been  met.  It  is  within  the  sole  discretion  of  the  Plan
Administrator to make or not make any such equitable adjustments.

ELIGIBLE EARNINGS  are defined as base salary (“Eligible Earnings”), prorated for hire date, base salary rate
changes, bonus target percent changes and leaves of absence (proration based on 365 days in the year) that occur in
the Eligibility Period. Eligible earnings exclude Company payments that are in addition to base salary including but
not  limited  to  payments  for  moving  or  relocation  allowances,  or  other  bonuses  or  commissions.  Changes  to  base
salary throughout the calendar year will be reflected in final wages used to calculate the bonus.

10. BONUS  TARGET   is  the  percentage  of  Eligible  Earnings  to  be  paid  out  at  100%  performance  achievement,
determined by each Participant’s position and communicated at the time of hire or as amended in writing. The bonus
may  be  weighted  based  on  individual  performance  and  Company  performance.  The  bonus  can  provide  for  payout
above target for performance in excess of the individual performance factors and/or Company performance   factors
or below target for performance below the individual performance factors and/or Company performance factors.

11. BONUS  VESTING  AND  PAYMENTS  :  Bonuses  are  earned  on  the  date  of  payment  and  not  sooner,  either  in
whole  or  in  part.  Bonuses  will  be  paid  in  cash.  Bonuses  will  be  paid  as  soon  as  practicable  after  the  Company
announces its financial results for the fiscal year, which generally occurs in the first quarter of the succeeding year.
All bonus payments will be made net of applicable withholding taxes.

 
 
12. TRANSFERS:  Employees who participate in the Plan and who transfer to a new position not covered by this Plan
and instead covered by another bonus, sales or incentive plan may be considered for a Bonus calculated on a pro-rata
basis  for  the  applicable  period.  The  Administrators  will  coordinate  and  administer  this  Plan  with  the  other  bonus,
sales, or incentive plan and his/her/its determinations shall be final and binding.

13.

INACTIVE EMPLOYEES : Employees on a Company-approved leave of absence will be considered for a prorated
Bonus  for  both  the  Company  performance  and  individual  performance  (based  upon  their  level  of  performance  and
contribution while actively employed during the plan year). The proration will be calculated based on the percentage
of the year worked. The Administrators will determine the appropriate proration and his/her determinations shall be
final and binding.

14. TERMINATION      OF  EMPLOYMENT  BEFORE  DATE  OF  PAYMENT  :  A  Participant  who  terminates
employment  before  the  date  the  bonus  is  earned,  whether  termination  is  voluntary  or  involuntary,  shall  earn  no
Bonus.

15. EMPLOYMENT AT WILL : The employment of all Participants at Fitbit is for an indefinite period of time and is
terminable at will, at any time by either party, with or without cause being shown or advance notice by either party.
This Plan shall not be construed to create a contract of employment for a specified period of time between Fitbit and
any Participant, or to change the at-will employment status of any Participant.

16. GENERAL PROVISIONS : Bonus payments represent unfunded and unsecured obligations of the Company and a
holder of any right hereunder in respect of any incentive payment shall have no rights other than those of a general
unsecured  creditor  to  the  Company.  No  Participant  will  have  the  right  to  alienate,  pledge  or  encumber  his  or  her
interest in this Plan, and such interest will not (to the extent permitted by law) be subject in any way to the claims of
the Participant’s creditors or to attachment, execution or other process of law. The validity, construction, and effect of
the Plan,  any rules  and  regulations  relating  to the Plan,  and  any bonus  payment  shall  be determined  in accordance
with the laws of the State of California (without giving effect to principles of conflicts of laws thereof) and applicable
Federal law. No incentive payment made under the Plan shall be intended to be deferred compensation under Section
409A of the Code and will be interpreted accordingly. The Plan is intended to be a “bonus program” as defined under
U.S.  Department  of  Labor  regulation  2510.3-2(c)  and  will  be  construed  and  administered  in  accordance  with  such
intention.

 
 
LIST OF SUBSIDIARIES
FITBIT, INC.*

EXHIBIT 21.1

Fitbit International Limited (Ireland)

Fitbit Limited (United Kingdom)

*Pursuant to Item 601(b)(21)(ii) of Regulation S-K, the names of other subsidiaries of Fitbit, Inc. are omitted because, considered in the aggregate, they would not constitute a significant
subsidiary as of the end of the year covered by this Annual Report on Form 10-K.

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM  

EXHIBIT 23.1

We hereby consent to the incorporation by reference in the Registration Statement on Form S‑8 (No. 333-216382, No. 333-205045, and No. 333-209787) of Fitbit,
Inc. of our report dated March 1, 2018 relating to the financial statements and the effectiveness of internal control over financial reporting, which appears in this
Form 10‑K.

/s/ PricewaterhouseCoopers LLP 
San Francisco, California 
March 1, 2018

CERTIFICATION OF CHIEF EXECUTIVE OFFICER PURSUANT TO SECTION 302 OF THE
SARBANES-OXLEY ACT OF 2002

EXHIBIT 31.1

I, James Park, certify that:
1.    I have reviewed this annual report on Form 10-K of Fitbit, Inc.;
2.    Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements
made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;
3.    Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial
condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;
4.    The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act
Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and
have:

a)    Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure

that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during
the period in which this report is being prepared;

b)    Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision,
to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with
generally accepted accounting principles;

c)    Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness

of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d)    Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal
quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s
internal control over financial reporting.
5.    The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s
auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a)    All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely

to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b)    Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over

financial reporting.

Date:

March 1, 2018

/s/ James Park

James Park
President, Chief Executive Officer, and Chairman
(Principal Executive Officer)

 
 
 
 
 
 
EXHIBIT 31.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER PURSUANT TO SECTION 302 OF THE
SARBANES-OXLEY ACT OF 2002

I, William Zerella, certify that:
1.    I have reviewed this annual report on Form 10-K of Fitbit, Inc.;
2.    Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements
made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;
3.    Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial
condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;
4.    The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act
Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and
have:

a)    Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure

that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during
the period in which this report is being prepared;

b)    Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision,
to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with
generally accepted accounting principles;

c)    Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness

of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d)    Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal
quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s
internal control over financial reporting.
5.    The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s
auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a)    All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely

to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b)    Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over

financial reporting.

Date:

March 1, 2018

/s/ William Zerella

William Zerella
Chief Financial Officer
(Principal Financial and Accounting Officer)

 
 
 
 
 
 
CERTIFICATION OF CHIEF EXECUTIVE OFFICER
PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 32.1

I,  James  Park,  President,  Chief  Executive  Officer  and  Chairman  of  Fitbit  Inc.,  do  hereby  certify,  pursuant  to  18  U.S.C.  Section  1350,  as  adopted  pursuant  to
Section 906 of the Sarbanes-Oxley Act of 2002, that to the best of my knowledge:

•

•

the Annual Report on Form 10-K of Fitbit, Inc. for the year ended December 31, 2017 fully complies with the requirements of Section 13(a) or 15(d) of
the Securities Exchange Act of 1934, as amended; and
the information contained in such Annual Report on Form 10-K fairly presents, in all material respects, the financial condition and results of operations of
Fitbit, Inc.

Date:

March 1, 2018

By:

/s/ James Park

James Park

President, Chief Executive Officer, and Chairman
(Principal Executive Officer)

 
 
 
 
 
 
CERTIFICATION OF CHIEF FINANCIAL OFFICER
PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 32.2

I, William Zerella, Chief Financial Officer of Fitbit Inc., do hereby certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-
Oxley Act of 2002, that to the best of my knowledge:

•

•

the Annual Report on Form 10-K of Fitbit, Inc. for the year ended December 31, 2017 fully complies with the requirements of Section 13(a) or 15(d) of
the Securities Exchange Act of 1934, as amended; and
the information contained in such Annual Report on Form 10-K fairly presents, in all material respects, the financial condition and results of operations of
Fitbit, Inc.

Date:

March 1, 2018

By:

/s/ William Zerella

William Zerella

Chief Financial Officer
(Principal Financial and Accounting Officer)