1. Waterproof level: IP68 2. Compatible system: Android 4.4 and above, iOS 8.2 and above 3. Screen: 1.70 inches high-definition color screen TFT, resolution: 240*280 4. Bluetooth: 5.0 BLE 5. Battery capacity: 200mAh 6. Charging method: magnetic (with short circuit protection circuit) 7. Charging time: about 3-4H 8. Battery life: 7-15 days of use, 30-40 days of standby 9. Band language: Chinese, English, traditional, Japanese, French, German, Italian, Spanish, Russian, Portuguese, Malay, Korean, Polish 10. APP languages: Chinese, Traditional, English, Japanese, German, Russian, Italian, French, Spanish, Portuguese, Thai, Czech, Greek, Polish, Vietnamese, Turkish, Romanian, Hungarian , Danish, Finnish, Arabic, Ukrainian, Hebrew, Persian, Irish, Slovak, Norwegian, Korean, Croatian, Swedish 11. Functions: step counting, calories, distance, multi-sports mode, heart rate monitoring, blood pressure monitoring, blood oxygen monitoring, body temperature detection, remote relatives and friends care, sedentary reminder, information reminder, etc. 12. Bracelet size: 260x38x10mm 13. Weight: about 34g