Flenco Fitness Tracker Heart Rate Monitor Activity Tracker Waterproof Smart Bracelet

Notes: 1. Compatible to the OS Android 4.3 and above, IOS 8.0 and above. Pls check if the phone matchs up the OS before you place an order. 2. Please download the app,through connect to app, you can unlock more features. Features: Heart rate monitor: Dynamic heart rate detection. Sleep monitor: Automatically track time of deep and light sleep and wake with a silent vibrating alarm. APP GPS move...