Waterproof standard:IP-X6 Front shell, back shell :plastic Hand belt:soft rubber Major chip : Quintic QN9021 Bluetooth version:4.0BLE(low power consumption) Memory:64KB RAM+64KB ROM Sensor:Gravity acceleration sensor Battery:451225 80mAh PCB Size:34.614.5*0.8mm LCD:128*32 ( 0.91 inches) Power consumption: normal use for a week, standby for three months. 5000USD8.2 3000USD8.3 1000USD8.4 sample priceUSD10.0 Step counter, Distance, Calorie consumption management, sleep management, Time management, Time show, Event reminder (Drinking water, Call alerts, Message alert, Sedentary reminded, Vibration alarm) Anti-lost, Self-Timer