Monitor your sleep quality and heart rate automatically Multifunction: Pedometer, calorie consumption, distance calculation, sleep monitoring,with heart rate monitor function,remote camera control,find phone, anti lost reminder (mobile phone out of range, call reminder, caller ID,time display,silent vibration alarm) Waterproof: IP67, Never mind your smart bracelet get wet in raining days, but remember do not worn in the shower Blutooth: 4.0 version bluetooth,using international first-line sensor,it will be a good one has accurate data synchronization,miss no in-calling and accurate calculation of sport and sleep specification. and please make sure the wrist band is fully charged and kept at the available distance of 5 meters. OLED Display: 0.49" Blue Screen, see call notifications, daily heart rate and time of day on the OLED display