1. Material: zinc alloy, electronic components 2. Functions: multiple sports mode tracking, heart rate/ECG monitoring, step counting, smart reminder, weather information, sleep analysis, NFC unlocking 3. Language: English, Chinese (Simplified/Traditional), Japanese, French, German, Italian, Spanish, Russian, Portuguese, Malay, Korean, Polish, Vietnamese, Persian, Greek, Czech, Turkish, Hebrew, Latin, Danish 4. Main control chip: RTK8762D 5. Screen size: 1.36 inches (TFT screen) 6. Screen resolution: 390 x 390pixel 7. Bluetooth version: 5.0 8. Wireless distance: 5-10m (inclusive) 9. Body memory: 64MB 10. Wearing method: wristband 11. Compatible system: fully compatible 12. Battery capacity: 280mAh lithium battery 13. Operation mode: touch + button 14. Waterproof grade: IP68 15. Magnetic fast charging, more convenient to use, fast full charge 16 LED light sensor design on the back of the watch, real-time monitoring of heart rate 17. Using PPG+ECG technology to detect ECG in real time