Multifunctional Waterproof Watch, Color: Black 1. Material: metal, silicone/ste/leather, ectronic components 2. Functions: multiple sports mode tracking, heart rate/blood pressure/blood oxygen monitoring, breathing exercise, dialing/information reminder, sleep monitoring, audio and video entertainment, smart reminder, remote control sfie 3. Screen size: 1.32 inches (TFT screen) 4. Languages: Chinese, English, German, French, Russian, Portuguese, Japanese, Arabic, Polish, Korean, Thai, Dutch, Indonesian, Czech, Italian 5. Screen resolution: 360 x 360pix 6. Bluetooth version: 5.0, 4.0, 3. 07. Wiress distance: 5-10m (inclusive) 8. Body memory: 64MB 9. Wearing method: wristband type 10. Compatible system: fully compatible 11. Communication function: support 12. Battery capacity: 240mAh lithium battery 13. Charging method: magnetic charging 14. Operation mode: touch + button 15. Waterproof grade: IP 6716. Standby time: about 15 days (only 4.0 Bluetooth is turned on) 17. Working battery life: about 7 days (with 4.0 bluetooth turned on), about 65 hours (with call 3.0 bluetooth turned on) 18. Magnetic fast charging, more convenient to use, fast full charge 19. LED light sensor design on the back of the watch, real-time detection of blood pressure, heart rate, blood oxygen 20. The watch supports NFC access control unlocking function