Fangrui Product Details 1. Pg333 1.91 Inch Waterproof Smart Sports Watch Support Heart Rate Monitoring Blood Pressure Monitoring 2. Functions: 6 Sets Of Themes, Custom Dial, Step Counting, Brightness Adjustment, Multi-sport Mode, Sleep Detection, Heart Rate, Blood Pressure, Blood Oxygen, Breathing Training, Information Push, Remote Music, Remote Photo, Real-time Weather, Search Mobile Phone (connected To The Mobile Phone), Alarm Clock, Stopwatch, Do Not Disturb Mode, Female Menstrual Cycle, Timer, Game 3. Compatible System: Android 5.0 And Above Ios 10.0 And Above 4. Language: 5. App: Simplified, English, Traditional, Greek, French, German, Italian, Spanish, Dutch, Portuguese, Russian, Turkish, Japanese, Polish, Romanian, Thai, Vietnamese, Indonesian, Korean, Arabic 6. Device Side: English, Greek, French, German, Italian, Spanish, Dutch, Portuguese, Russian, Turkish, Japanese, Polish, Romanian, Thai, Vietnamese, Indonesian, Hebrew, Malay 7. Instructions: English, French, Spanish, Portuguese 8. App: Pgfit 9. Chip: Realtek: 8762ck 10. Button Type: 2 Physical Buttons 11. Bluetooth: Bt5.1 12. Heart Rate: Lc11s 13. Material: Zinc Alloy + Abs 14. Screen Size: 1.91-inch Tft High-definition Square Screen, Screen Resolution: 320x386 15. Screen Type: Ips Full Viewing Angle Color Screen 16. Screen Material: Glass 17. Battery Type: Lithium Battery 18. Wristband Material: Silicone 19. Battery Capacity: 340mah 20. Battery Life: 5-7 Days For Normal Connection And 20-30 Days For Standby. (connection Usage Depends On Personal Usage) 21. Charging Method: Magnetic Charging 22. Charging Time: About 3 Hours 23. Body Net Weight: 45 Grams 24. Machine Head Size: 54.4x44.3x13.3mm 25. Overall Length Of Wrist Strap: 270mm