Screen：OLED

Material：Product Material :ABS；Wrist Strap Material：TPU            Bracelet Weight：18g

External Dimension：69.1mm *15.8mm *11.2mm

Bluetooth Standard：4.0+EDR

Standby time：72h 

Working temperature：-20°C～+45°C, Storage temperature：-40°C～+45°C

Color：Black/White/Rose red

Application Function：waterproof/Pedometer/Sleep Monitor/Bluetooth/Ultra-long standby time/Low radiation/Chinese&English