Fangrui Product Details 1. R10 Size 9 Smart Ring, Support Heart Rate Blood Oxygen Sleep Multiple Sports Modes 2. About Product 3. Chipset: Realtek 4. Bluetooth: 5.2 5. Sensor Chip: St Lis2doctr 6. Battery Capacity: 14mah 7. Battery Life: 5-7 Days Of Use And 15 Days Of Standby 8. Charging Time: About 1.5h 9. Waterproof: 5atm 10. Size 9: Dia 19.2mm; Circumference 60mm 11. Charging Method: Wireless Charging 12. Compatible System: Android5.1 Or Above, Ios8.0 Or Above 13. App: Qring 14. App Support Language:danish, Ukrainian, Russian, Croatian, Hungarian, Hindi, Indonesian, Türkiye, Hebrew, Greek, German, Italian, Latvian, Czech, Slovak, Slovenian, Japanese, French, Polish, Thai, Estonian, Swedish, Lithuanian, Simplified Chinese, Traditional Chinese, Romanian, English Dutch, Portuguese, Spanish, Vietnamese, Arabic, Korean, Malay 15. Function: 16. Step Count, Sleep Monitoring, Heart Rate Tracking, Exercise Data Records 17. Health Monitoring, Pressure, Blood Oxygen Measurement 18. Multiple Sports Modes, Photography, And Message Reminders 19. Remote Photo, Find Ring, Gesture Control, Gamesfemale Physiological Reminders 20. Packing List: 21. Smart Ring X 1 22. Charging Cable X 1 23. User Manual X 1 24. Compatible Retail Box X 1