Get a deeper understanding of your body with Fitbit Charge 3. An advanced tracker that uncovers health and fitness insights you can use to improve yourself. Key features • Better measure calorie burn, understand resting heart rate & more with 24/7 heart rate tracking. • Battery lasts up to 7 days for continuous access to insights & inspiration. Varies with use & other factors. • Use 15+ exercise modes, set goals, see progress in real time & learn how to improve over time. • Automatically record time spent in Light, Deep and REM sleep stages & get tips for better sleep. • Swimproof and water resistant to 50M so you can track swims, wear in the shower & more. • See activity trends, health insights and personalised guidance in one place with Fitbit Today. • Stay connected to your day with apps for weather & more. • Get call, text and smartphone app notifications on your wrist. Plus, send quick replies (Android only). • Connect to smartphone GPS for real-time pace and distance. In the Box • Fitbit Charge 3 tracker • Charge 3 Classic wristband • Charging cable Warranty One year limited manufacturer warranty