1. 1.32 inch high resolution 360*360 screen 2. Bluetooth version: 5.0 3. Battery: high density polymer lithium battery 4. Standby time: 7-12 days for use, 30-40 days for standby 5. Charging method: Magnetic charging 6. Control method: full-screen touch control, mobile APP control 7. Battery capacity: 280mAh 8. Waterproof level: IP68 9. Wearable hardware + smart APP + big data cloud service 10. Control, display and record data through APP. Long battery life standby, multi dial switching. 11. Sports function: step/calorie/distance, multi-sport mode. 12. With heart rate monitoring, blood pressure monitoring, sleep monitoring and other health functions, remote family and friends care function. 13. Other functions: step counting, calorie, distance, sleep monitoring, exercise mode, call reminder, alarm clock reminder, raising hand to brighten the screen, social sharing (WeChat, QQ, Facebook, Twitter), shaking and taking pictures, etc.