HD7max 1.9 Inch Multifunctional Waterproof Smart Watch with NFC Function(Black)

1. Material: metal, tempered glass, silicone, electronic components2. Functions: multiple sports mode tracking, heart rate/blood pressure/blood oxygen monitoring, breathing exercise, dialing/information reminder, sleep monitoring, video entertainment, smart reminder, remote control selfie3. Screen size: 1.9 inches (TFT color screen)4. Menu language: Simplified Chinese, Traditional Chinese, English, German, French, Spanish, Korean, Japanese, Russian, Portuguese, Italian, Ukrainian, Arabic5. Screen resolution: 320 x 390pixel6. Bluetooth version: 5.07. Wireless distance: 5-10m (inclusive)8. Body memory: 128M9. Wearing method: wristband type10. Compatible system: fully compatible11. Communication function: support12. Battery capacity: 380mAh lithium battery13. Battery voltage: 3.7V14. Charging time: about 2 hours15. Charging method: magnetic charging16. Operation mode: touch + button17. Waterproof grade: IP6818. Magnetic fast charging, more convenient to use, fast full charge19. LED light sensor design on the back of the watch, real-time detection of blood pressure, heart rate, blood oxygen20. The watch supports NFC access control unlocking function