1. Screen: 1.7 inches, Resolution: 240 x 280
2. System support: Android 5.1 and above, IOS 8.2 and above, support Bluetooth 4.0
3. Charging time: about 3-4H
4. Standby time: 7-10 days for normal use, 30-40 days for standby
5. Charging method: Magnetic suction
6. Bluetooth version: BLE5.0
7. Battery capacity: 200mAh
8. Packing list: watch, charging cable, instruction manual, packing box
9. Features: air pump + airbag type true blood pressure test, independent and accurate blood oxygen, body temperature, respiration rate, blood pressure, heart rate, sleep monitoring, remote relatives and friends care.