Smart Bracelet, Beeiee Bluetooth 4.0 Smart Sports Smart Bracelet Watch with Health monitoring,Cocial entertainment,Pedometer,Intelligent alerts,Information push,Remote self-timer,Motion tracking This Smart Bracelet can diaplay the time, steps, distance and calorie clearly. Additional features: health monitoring, social entertainment, pedometer, intelligent alerts, information push, remote self-timer, motion tracking, sleep analysis, mobile positioning When bluetooth paired, you can sync your data to Andriod Phone (OS must be 4.3 or above and Bluetooth must be V4.0) and ios phone (ios must be 7.0 or above and Bluetooth must be V4.0). It gives you real-time assessment of your exercise throughout the day It has a unique standard USB port in the host. So it is available for charing with computer and battery bank without any other charing componentsIt has a unique standard USB port in the host. So it is available for charing with computer and battery bank without any other charing components Accurately monitor total effective sleeping time and motions every night (including light sleep and deep sleep)