Wearkey DT4+ 1.36 Inch HD Screen Smart Call watch with NFC Function, Color: Black Steel

1. Material: zinc alloy, electronic components2. Functions: multiple sports mode tracking, heart rate/ECG monitoring, step counting, smart reminder, weather information, sleep analysis, NFC unlocking3. Language: English, Chinese (Simplified/Traditional), Japanese, French, German, Italian, Spanish, Russian, Portuguese, Malay, Korean, Polish, Vietnamese, Persian, Greek, Czech, Turkish, Hebrew, Latin, Danish4. Main control chip: RTK8762D5. Screen size: 1.36 inches (TFT screen)6. Screen resolution: 390 x 390pixel7. Bluetooth version: 5.08. Wireless distance: 5-10m (inclusive)9. Body memory: 64MB10. Wearing method: wristband11. Compatible system: fully compatible12. Battery capacity: 280mAh lithium battery13. Operation mode: touch + button14. Waterproof grade: IP6815. Magnetic fast charging, more convenient to use, fast full charge16 LED light sensor design on the back of the watch, real-time monitoring of heart rate17. Using PPG+ECG technology to detect ECG in real time