Wontimes Noble and Generous Smart Watch Smartband Bracelet with Sync Phone Call / Pedometer/ Anti-lost Smart Watch Phone Smart Bracelet Bluetooth Watch Phone for iOS Android cell Phone(D8 Silver) Jieyutek Noble and Generous Smart Watch Smartband Bracelet with Sync Phone Call / Pedometer/ Anti-lost Smart Wrist Wrap Watch Phone Smart Bracelet Bluetooth Wrist Watch Phone for iOS Android iPhone Samsung D8 Silver Multi-function. Watch function, Calls, shows the caller ID or caller number, picture taking, sleep management, Pedometer function, stopwatch etc. Anti-lost. Alarm with sound or vibration if leaving your smart phone away from about 10 meters ( only for Android SmartPhones ) Battery: Built In 180 mAh Rechargeable Li-ion Battery, Standby Time is 72 Hours Functions: Dial or Answer Calls / Smart Notifications/ Menu Style/ Anti-lost/ Find phone/ Pedometer/ Remote taking photo/ Sleep Monitor