Multi-Function: Call Reminder, Message Send and Receive, bluetooth phone call, Phone book, Call Log, Pedometer, Sleep Monitoring, Sedentary Reminder, Calendar, Alarm clock, Anti-lost, Music Player, Remote photos, Image viewer, Sound Recorder, Multi-timezone, Multi-language, Notification Push including Facebook, Twitter, Email, Calls, Texts, etc. Synchronize the phone book and make phone calls by bluetooth, including answering and dial-up, view call Log etc. Stable Connection & Wide Compatibility: Perfectly compatible with Android phones, such as SAMSUNG, SONY, etc. But for IOS phones, the smart watch is not compatible with IOS phones (because there is no synchronous APP can be installed, just supports partial functions, some features like notification push, remote photos, anti-lost, bluetooth message, are unusable. Please see the function chart carefully before placing order!? Battery Life & HD Display Screen: 380mAH lithium battery, average standby time is 24-48 hours.(Note: Battery life varies based on usage); 1.54″ high sensitive touch screen, and 240 x 240 pixels resolution make the screen clear and bright, easy to see all the information whether indoor or outdoor.