Fitbit Charge 3 Fitness Activity Tracker

Better measure calorie burn, understand resting heart rate & more with 24/7 heart rate tracking and a battery life of up to 7 days (varies with use and other factors). Fit guide For small wrists (5.5 7.1 inches) and for large wrist (7.1 8.7 inches). Syncing requires Bluetooth LE and Internet connection. Windows 10 computers that do not have Bluetooth LE will need a wireless sync dongle in order to sync.Syncs with iOS 10 and later, Android 5.0 and later and Windows 10 devices
Choose from 15 plus exercise modes like run, bike, swim, yoga, circuit training and more, set a goal, and get real time stats during your workouts to see how you can keep getting better
Automatically record time spent in Light, Deep and REM sleep stages and see activity trends, health insights and personalized guidance in one place with Fitbit Today. Operating temperature is -10° to 45° C
Swim proof and water resistant to 50 Meters so you can track swims and wear in the shower. Also connect to smartphone GPS for real time pace and distance during outdoor runs and rides
Stay connected to your day with everyday apps for weather and more and get call, text and smartphone app notifications on your wrist. Syncing range up to 6 meters
Corning Gorilla Glass 3