Software Feature: 100% brand new and high quality. Quantity:1Set Health Tracker: Heart Rate Monitor, Pedometer, Calories Counter, Distance, Sleep Monitor Activities record:Record daily activities,you could daily activities including steps,distance and calorie consumption in the app Sleep monitoring:Device could automatically recognize your status and monitoring the whole sleep progress with analyzing the deep sleep and light sleep hours; Remind alerts:alarm alert,call alert,sedentary alert,etc.by silent vibration; Anti-lost:When the smart phone is beyond the bluetooth range(no more than 5m),the device vibrates to remind. Remote camera control:Device key could control remote photograph shooting. HRM:Monitoring your heart rate effectively,and being reasonable to planning the movement. App OS:IOS7.1&aboveAndroid4.4&above Main function:RTC,Heart rate monitor,Step pedometer,Calorie burnt,Distance track,Sleep monitor,Call remind(caller name/caller ID),Alarm remind,Anti-lost,Camera remote control,etc. Sensor:KIONIX kx022-1020 CPU chip:Nordic nRF51822 HR sensor:Silicon labs Si1142 Vibration :YES Waterproof:life waterproof (Sweat proof,rain proof,water drop proof) Size :0.49" Type:OLED Bluetooth:4.0 Strap material:TPE Dimension:40.9*20.0*12.5mm Strap:260*21*12.5mm Operation:Wrist senses, tap to switch Data Sorage:7 days" Battery:Li-polymer Battery Capacity :70mAh Standby time:5-10 days Charging:2 point connect Charging time:About 1 hourPackage Content: 1PC Smart Watch Heartrate Bracelet (with retail package) 1PC USB Cable 1PC User Manual