Fitbit SDK

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Using JavaScript, CSS, and SVG, developers now have a fast, easy way to build apps and clock faces for Fitbit OS."> <title>Fitbit SDK</title> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css"> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/motion-ui/1.1.1/motion-ui.css"> <link rel="stylesheet" href="/styles/app-a858888fb3e3764883e4504e38aa4524.css"> <meta name="google-site-verification" content="n0weR6PKsP7ScjgqbUNSslc4csqsgny9Cxjjxi7CA4M"> <meta property="og:title" content="Fitbit Development: Fitbit SDK"> <meta property="og:type" content="website"> <meta property="og:url" content="https://dev.fitbit.com/"> <meta property="og:description" content="You'll fit in here. Using JavaScript, CSS, and SVG, developers now have a fast, easy way to build apps and clock faces for Fitbit OS."> <meta property="og:image" content="https://dev.fitbit.com/opengraph.png">  <script src></script>  </head> <body> <div class="row expanded row-header hide-for-print"> <div id="title-bar" class="expanded mobile-title-bar"> <div class="title-bar overview align-justify flex-container flex-dir-row-reverse" id="overview" data-magellan-target="overview" data-responsive-toggle="responsive-menu" data-hide-for="medium"> <div class="float-right"> <div class="float-right" data-hide-for="medium"> <button class="menu-icon" type="button" data-toggle></button> </div> <div class="search-icon-box float-right mobile-show"> <a href="#" class="search-button"><img src="/images/search-icon-ce72b3f26dca3833d10b930464c46d19.svg" alt="search" class="icon icon-search"></a> </div> </div> <div class="title-bar-title"> <a href="/"> <img src="/images/fitbit-logo-5894e7f66b64ae9d05a1ef278c367c18.svg" alt="Fitbit" width="112"> </a> </div> </div> </div> <div class="mobile-sidenav-box expanded mobile-show"> <div class="mobile-sidenav-title">Fitbit SDK</div> <div> <img class="chevron-down" src="/images/chevron_down_black-8dae3183d2527940f30b31664da79f0d.svg" alt="chevron down"> </div> </div> <div class="expanded mobile-top-bar"> <div class="top-bar" id="responsive-menu"> <div class="top-bar-left"> <a href="/"> <img src="/images/fitbit-logo-5894e7f66b64ae9d05a1ef278c367c18.svg" alt="Fitbit" width="184"> </a> </div> <div class="top-bar-right"> <ul class="top-submenu medium-horizontal vertical dropdown menu" data-multi-open="false" data-responsive-menu="accordion medium-dropdown"> <li class><a href="/getting-started/" title="Getting Started">Getting Started</a></li><li class="has-submenu"><a href="/build/" title="Build">Build</a><ul class="submenu menu vertical" data-submenu><a href="/build/" title="Build" class="show-for-small-only show-for-medium-only">Overview</a><a href="/build/guides/" title="Guides">Guides</a><a href="/build/reference/" title="Reference">Reference</a><a href="/build/tutorials/" title="Tutorials">Tutorials</a><a href="/build/fitbit-studio/" title="Fitbit Studio">Fitbit Studio</a></ul></li><li class="has-submenu"><a href="/manage/" title="Manage">Manage</a><ul class="submenu menu vertical" data-submenu><a href="/manage/" title="Manage" class="show-for-small-only show-for-medium-only">Overview</a><a href="/manage/support/" title="Support">Support</a><a href="/apps/new/" target>Register An App</a> <a href="https://gam.fitbit.com" target="_blank">Gallery App Manager</a> <a href="/legal/app-gallery-guidelines/" target>App Gallery Guidelines</a> </ul></li><li class="has-submenu"><a href="/community/" title="Community">Community</a><ul class="submenu menu vertical" data-submenu><a href="/community/" title="Community" class="show-for-small-only show-for-medium-only">Overview</a><a href="/blog/" target>Developer Blog</a> <a href="https://community.fitbit.com/t5/SDK-Development/bd-p/sdk" target="_blank">Community Forum</a> <a href="https://twitter.com/fitbitdev" target="_blank">Twitter</a> <a href="/community/contributing/" title="Contributing to the Fitbit OS SDK">Contributing to the Fitbit OS SDK</a></ul></li> <li><a href="#" class="search-button desktop-show"><img src="/images/search-icon-ce72b3f26dca3833d10b930464c46d19.svg" alt="search" class="icon icon-search"></a></li> </ul> </div> </div> </div> <div class="search-bar"> <div class="search-bar-icon"> <a href="#" class="close-search-box mobile-show"> <img class="close-search-button auto-shrink" src="/images/chevron-left-912dff8691d0ff2084124300699ee011.svg" alt="back"> </a> <img class="search-icon" src="/images/search-icon-ce72b3f26dca3833d10b930464c46d19.svg" alt="search icon"> <a href="#"><img class="cancel-search-icon" src="/images/cancel-search-85d34fbe814dbe230b00a0fa5a764d3a.svg" alt="cancel search"></a> </div> <input class="columns" id="search-input" type="search"> </div> </div> <div class="row-banner"> <div class="row expanded row-banner01"> <div class="row flex-container align-spaced banner-content"> <div class="large-5 medium-6 small-12 columns img"> <img src="/images/sense-hero-d67f489ec3dbd6470ef74cfbb54fc323.png" alt="Fitbit Sense - Hero Clock"> </div> <div class="copy large-5 medium-6 small-12 columns"> <h1>You’ll <span class="highlight">fit</span> in here</h1> <div class="divider"></div> <p>Using JavaScript, CSS, and SVG, developers now have a fast, easy way to build apps and clock faces for Fitbit OS.</p> <a href="/getting-started/" class="button hollow float-left">Learn More</a> </div> </div> </div> </div> <div class="row-gray"> <div class="row expanded row-banner"> <div class="row expanded row-banner02"> <div class="row"> <div class="large-7 medium-7 small-12 columns box"> <h1 class="home">It’s time for a change</h1> <p>The clock face is your new canvas.</p> <div class="desktop-show"><a href="/getting-started/" class="button">Learn More</a></div> </div> <div class="large-4 medium-4 small-12 columns img end"> <img src="/images/mira-front-bedd0bcaabdd0cd5a8d290baf76bdd1c.png" alt="Fitbit Versa 2 - Clock Face by ntpr"> </div> </div> <div class="mobile-show"><a href="/getting-started/" class="button">Learn More</a></div> </div> <div class="row expanded row-banner04"> <div class="row"> <div class="large-7 medium-6 small-12 columns box"> <h1 class="home">Stronger, fitter apps start with our Web API</h1> <p>Your app goes further with data from over 20 million active Fitbit users.</p> <div class="desktop-show"><a href="/build/reference/web-api/" class="button">Learn More</a></div> </div> <div class="large-5 medium-6 small-12 columns img end"> <img src="/images/group-2-7eab31855ef096f7daceef4ab195d261.png" alt="Web API Example"> </div> </div> <div class="mobile-show"><a href="/build/reference/web-api/" class="button">Learn More</a></div> </div> </div> </div> <div class="row-banner"> <div class="row expanded row-banner05"> <div class="row"> <div class="large-5 medium-5 small-12 columns left"> <a href="https://gam.fitbit.com" target="_blank" title="Fitbit App Gallery"> <h2>App Gallery</h2> <p>Distribute your apps by uploading to our new App Gallery.</p> </a> </div> <div class="large-5 medium-5 small-12 columns right"> <a href="https://gam.fitbit.com" target="_blank" title="Fitbit App Gallery"> <img src="/images/apps-full-0f3bf705192e8c80fb7b5dc62a7edaa3.png" alt="Fitbit App Gallery"> </a> </div> </div> </div> </div> <div class="row-banner"> <div class="row expanded row-banner06 text-center"> <div class="row"> <div class="large-5 large-centered columns"> <h2>Ready. Set. Go.</h2> <p>Gear up to build clocks for Fitbit OS.</p> <div><a href="/getting-started/" class="button">Our Guide</a></div> </div> </div> </div> </div> <footer class="row expanded" id="footer"> <div class="row"> <div class="row-legal"> <div class="legal-links column desktop-show-legal"> <div class="desktop-row"> <div class="legal-item"> <a href="https://www.fitbit.com/terms"> Terms of Service </a> </div> <div class="legal-item"> <a href="https://www.fitbit.com/legal/privacy"> Privacy Policy </a> </div> <div class="legal-item"> <a href="/legal/platform-terms-of-service/"> Platform Terms </a> </div> <div class="legal-item"> <a href="/legal/fitbit-user-data-and-developer-policy/"> Fitbit User Data and Developer Policy </a> </div> <div class="legal-item"> <a href="/legal/controller-data-protection-terms/"> Controller Data Protection Terms </a> </div> <div class="legal-item"> <a href="/legal/health-research-policy/"> Health Research Policy </a> </div> <div class="legal-item"> <a 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Fitbit SDK