HD6 1.69 inch Multifunctional Heart Rate Monitoring Smart Watch 1. Screen material: tempered glass 2. Wristband material: silicone 3. Functions: multiple sports mode tracking, heart rateblood pressureblood oxygen monitoring, breathing exercise, dialinginformation reminder, sleep monitoring, audio and video entertainment, smart reminder, remote control selfie 4. Screen size: 1.69 inches (TFT color screen) 5. Menu language: Simplified Chinese, Traditional Chinese, English, German, French, Spanish, Korean, Japanese, Russian, Portuguese, Italian, Ukrainian, Arabic 6. Screen resolution: 240 x 285pixel 7. Bluetooth version: 5.0 8. Wireless distance: 5-10m (inclusive) 9. Body memory: 128M 10. Wearing method: wristband 11. Compatible system: fully compatible 12. Communication function: support 13. Battery capacity: 230mAh lithium battery 14 Battery voltage: 3.7V 15. Charging time: about 2 hours 16. Charging method: magnetic charging 17. Operation mode: touch + button 18. Waterproof grade: IP67 19. Magnetic fast charging, more convenient to use, fast full charge 20. LED light sensor design on the back of the watch, real-time detection of blood pressure and heart rate