1. System requirements: Android 5.0 and above, IOS 10.0 and above 2. Charging head specifications: charging 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 firmware and push 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 counting, calorie, distance, heart rate, sleep time, switch display, 12 sports modes (running/walking/hiking/badminton/ Rope skipping / exercise / yoga / aerobics / spinning / elliptical machine / rowing machine / swing), sleep monitoring (sleep time, sleep quality), call notification, message reminder, multi-language push, alarm clock 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)
