See how jewelry gets smart with a tracker that doubles as a timeless accessory and features a vibrant color display Get better sleep to power your days with sleep tracking and sleep score in the fitbit app Feel a buzz when you reach your target heart rate zones, while you earn active zone minutes 6-month trial of fitbit premium (new and returning premium members only must activate trial within 60-days of device activation requires valid payment method cancel before end of trial to avoid recurring fees content and features may change terms conditions apply) Maximize your exercise, understand resting heart rate trends and better estimate calorie burn with 24/7 heart rate tracking Tune in to your body with health metrics like breathing rate, heart rate variability and more (in-app only) Enjoy up to 5 days of battery without having to stop for a charge (varies with use and other factors) Connect luxe to your phone’s gps see real-time pace and distance on your wrist the fitbit app is compatible with most popular phones to set up and use your fitbit products and services, you must install the fitbit app on a compatible device running one of the following operating systems: apple ios 14 or higher android os 8 or higher