1. System requirements: Android 5.0 and above, iOS 10.0 and above
2. Loads of head specifications: load 1A or less
3. Charging time: 2h
4. Bluetooth version: Bluetooth 5.0
5. Master: RTL8762CK-VD
6. Memory: 256kb+192kb (flash 64mb)
7. Screen display: 1.13 inches, Resolution: 167*240
8. Battery capacity: 130mAh
9. Standby time: 25 days
10. Working time: 3-5 days
11. Waterproof grade: IP68
12. Sensor: gravity sensor / heart rate sensor
13. UI push and firmware support 18 languages: Traditional Chinese, Simplified Chinese, English, Japanese, German, Russian, Spanish, Italian, French, Romanian, Portuguese, Greek, Dutch, Polish, Turkish Chinese, Vietnamese, Thai, Indonesian
14. Functions: heart rate detection, blood pressure detection, blood oxygen detection, female physiological period, time display, step count, calories, distance, heart rate, sleep time, switch display, 12 sports modes (running/walking/hiking/badminton/skipping rope/exercise/yoga/aerobics/twisting/elliptical machine/rowing machine/swing), sleep monitoring (sleep time, sleep quality), call notification, sleep reminder messages, multi-language push, wake-up reminder, task reminder, sedentary reminder, etc.
15. Material: Metal Middle Frame + IML Bottom Case + Stainless Steel Strap
16. Dimensions: 38x25x10.3mm
17. Weight: 46g (without strap)