R6 1.32-Inch TWS 2-In-1 Bluetooth Headset Smart Watch, Heart Rate Blood Oxygen Monitoring 1. Main chip: RTL8762D 2. TWS chip: 8926B2 (Zhongke Lanxun) 3. Heart rate chip: Tianyi Hexin 3300 4. Screen size: 1.32 inches 5. Resolution: 360x360 6. Memory: 192KB RAM+1024KB ROM+128Mb UI-Flash 7. Compatible systems: Android 4.4 and above, ios8.0 and above 8. Operation method: full screen touch + rotating button 9. Vibration: real-time vibration reminder 10. APP supports languages: English, Chinese Simplified, Chinese Traditional, Japanese, Korean, German, French, Russian, Spanish, Italian, Dutch, Polish, Portuguese, Turkish, Vietnamese, Malay, Indonesian, Filipino, Hungarian 11. Watch language: English, Chinese Simplified, Chinese Traditional, Japanese, Korean, German, French, Russian, Spanish, Italian, Dutch, Polish, Portuguese, Turkish, Vietnamese, Malay, Indonesian, Filipino Hungarian 12. Featured functions: Bluetooth calling, full touch, heart rate, shake to take pictures, call reminderrejection, information storage, multi-sport mode, weather 13. Main functions: multi-language, information reminder, alarm clock, bracelet search, health monitoring, exercise record (pedometer, calories, mileage), time, day, date 14. Bluetooth version: 5.0 15. Charging method: magnetic charging 16. Battery capacity: 280mAh for watch body, 25mAh for earphones 17. Usage time: 8-12 days on standby, 3 hours of music playback 18. Charging time: 1-2 hours 19. Waterproof level: IP67 20. Net weight of watch: 57 grams