Ginsy Smart Watch U8 Bluetooth Wrist Watch with Touch Screen Outdoor Sports Pedometer Stopwatch for Android and IOS (Black) Bluetooth Version: Bluetooth V2.0, Talk Time: about 3 hours, Charging Time: about 1 hour, Music Play Time: about 6 hours, Standby Time: about 160 hours. Ring reminder when your Android 2.3 or above smart phone receive a message (including Wechat, Facebook, Twitter,WhatsApp, Skype,and so on) Sync phone book/SMS/call history(only for android phone) Support hands-free calls, Answer or Dial calls from your wrist Play the music in your phone (after Bluetooth paring)