Loverbuyer&reg; E02 Sport bluetooth bracelet smart watch healthy Silicone Wristband Time/Caller ID/alarm/Pedometer Sleep Monitor for IOS Android Standard USB Plug charger On Computer USB port Black Color OS Requirement Android 4.3 OS, IOS 7.0 or above. For android OS, display the in-call number. For IOS, display INCOMING CALL?? Watch function,time display incoming call notice camera remote video remote find android Lost warning, out of range alarm All day tracking:step counting,distance,calorie Sleep tracking:sleeping time,sleeping quality. Message notice (Android) Clock alarm:setting clock Task alert:can create at most 3 tasks,will remind you by vibration or display. Move alert: alert you moving every 30 minutes Fitness goal setting Fitness information sharing Synchronous data to mobile applications Android and for iphone application in sync