Main Features: 1, Health Monitor Monitor your heart rate and sleep status, and concern your heart health at any time 2, Blood Pressure Measure Keep your heart and wrist on the same height, 3, Call / SMS Remind The wristband will remind you with vibration when there is a call or message coming so that you cannot miss any information 4, 0.42 inch OLED screen with 120 x 120 resolution 5, Support Languages Android OS: simplified Chinese, traditional Chinese, English, Japanese, German, Spanish, French, Italian, Korean, Russian, Romanian, Greek, Polish iOS OS: simplified Chinese, traditional Chinese, English, Japanese, German, Spanish, French, Italian, Korean, Russian, Romanian, Greek Compatible OS 6,Android 4.3 / iOS 8.0 and above systems 7,Lift your wrist or turn over your wrist, bright the screen parameter: Bluetooth Version: Bluetooth 4.0 IP rating: IP67 Screen: OLED Operating mode: Touch Key Type of battery: Lithium-ion Battery Charging Time: About 60mins Standby time: About 15 - 20 Days Case material: ABS Band material: TPU Size:as the picture show Package Contents: 1 x QS80 Smart Wristband