Fangrui Product Details 1. Qs08 Pro 1.83 Inch Bt5.2 Smart Sport Watch, Support Sleep Heart Rate Blood Oxygen Temperature Blood Pressure Health Monitor 2. General Specifications: 3. Product Size: 44.7x10.5mm 4. Case Material: Abs+pc 5. G-sensor: Stk8321 6. Strap Material: Silicone 7. Waterproof Level: Ip67 8. Battery Life: 5-7 Days (depending On Usage Scenarios) 9. Charging Time: Less Than Or Equal To 2h 10. Compatible With Smartphone Systems: Android 4.4 Or Ios 9.0 Or Above Systems That Support Bluetooth 5.2 Ble 11. Watch Firmware Language: Russian, Indonesian, German, Italian, Czech, Japanese, French, Polish, Simplified Chinese, Traditional Chinese, English, Portuguese, Spanish, Arabic, Korean, Dutch, Hindi) 12. App Language: Russian, Indonesian, German, Italian, Czech, Japanese, French, Polish, Simplified Chinese, Traditional Chinese, English, Portuguese, Spanish, Arabic, Korean 13. Hardware Configuration: 14. Mcu: Rtl8763ewe 15. Heart Rate Chip: Lc11s(due To Technical Issues, This Function Does Not Support Black Skin Color Testing) 16. Bluetooth: Ble5.2 17. Display: 1.83 Inch, 240x280 Tft Lcd 18. Touch: Full Screen Touch + 1 Button 19. Battery: 300mah 20. Ram: 64kb 21. Rom: 521kb 22. App: Glory Fit 23. Software Configuration: 24. Built-in Dials: 6 Built-in Dials, Supports Custom Dials 25. Basic Functions: Breathing Exercise, Countdown, Raise The Hand On The Screen, Clock Display, Alarm Clock, Female Menstrual Cycle, Music, Versatile Dial, Dial Wallpaper, Do Not Disturb Mode, Find The Bracelet, Remote Photography, Step Distance Calorie 26. Bluetooth Call Connection: Connect 1 Time 27. Health Management: Sleep Monitoring, Heart Rate, Blood Pressure, Blood Oxygen Detection, Sedentary Reminder 28. Sports Modes: 100+ Sports Modes