Fangrui Product Details 1. S9 1.53 Inch Color Screen Smart Watch, Support Bluetooth Call Heart Rate Blood Pressure Blood Oxygen Monitoring 2. About Product: 3. Battery Capacity: 300mah 4. Bluetooth Version :ble 5.0 5. Charging Method:magnetic Charging 6. Resolution:360 X 360 7. System: Android System 5.1 Version Or Above,ios System 8.0 Version Or Above 8. App: Lookfit 9. App Support Languages: English, Simplified Chinese, Traditional Chinese, Dutch, Russian, French, German, Portuguese, Spanish, Türkiye, Polish, Arabic, Malaysian, Thai, Japanese, Korean 10. Watch Support Languages: Simplified Chinese, Traditional Chinese, Japanese, Korean, English, French, German, Italian, Dutch Language, Portuguese (portugal), Spanish, Swedish Language, Czech Language, Danish Language, Polish Language, Russian, Turkish Language, Hebrew Language, Thai, Hungarian Language, Romanian Language, Arabic, Vietnamese Language, Tibetan, Hindi 11. Parameters: 12. Bt Headset Chip Dor: Bluetrum 13. Bt Headset Chip Model: Ab5376a2 (5v Automatic Switching) 14. Incoming Call: 15. Take Out Double Click To Answer 16. Dual Headphones: Listening To Songs In Stereo 17. Single Headphone: Single Channel Listening 18. Average Power Consumption For Listening To Songs And Phone Calls: Approx 10ma (low-power Version) 19. Battery Capacity: 25mah 20. Headset Charging Mode: Put In The Bracelet To Charge 21. Function 22. Heart Rate Monitoring,blood Pressure Monitoring,blood Oxygen Monitoring 23. Step,distance,calorie 24. Sleep Monitoring (sleep Duration, Sleep Quality) 25. Message Push, Daily Alarm Clock, Photo Control 26. Bluetooth Dual Earphone Call, Sedentary Reminder, Find Phone, Find Bracelet