R8 Continuous Heart Rate Monitor Sport Tracker

R8 SPECS General Model R8 Comaptible OS Android 4.4 or above,iOS 8.4 or above BT Version Bluetooth 4.0 G-Sensor 3-axis Ram+Flash 32Kb+256Kb Key button Single point touch Color Black,Blue,Red Main Features Time/Date, Step count, Continuous HR monitor, Splash-proof, Calories burned, Distance, Alarm, Sleep monitor, Call reminder, Message reminder, Sedentary reminder, Stopwatch, Phone search, Wrist gesture,etc. Material Body PC Back cover PC Strap TPU APP APP Name WearFit 2.0 Download source App Store (iOS) / Google Play (Android) Display Display size 0.96 Display type OLED Battery Battery 90mAh Li-ion battery Charging way USB charging Charging way about 2 hours Working time 7-10 days Standby time 20 days Packing list Packing list 1*R8, 1*User manual