1. Material: aluminum alloy, TPU, electronic components 2. Functions: step counting, monitoring, smart reminder, remote selfie, health monitoring, information push, sleep analysis 3. Body memory: 128MB 4. Languages: Simplified Chinese, Traditional Chinese, English, German, French, Spanish, Korean, Japanese, Russian, Portuguese, Italian, Arabic, Polish, Turkish, Dutch, Indonesian, Hindi, Czech language 5. Screen size: 1.28 inches (IPS screen) 6. Screen resolution: 240 x 240pixel 7. Bluetooth version: 5.0 8. Wireless distance: 5-10m (inclusive) 9. Wearing method: wristband type 10. Compatible system: fully compatible 11. Battery capacity: 200mAh lithium battery 12. Charging time: about 2-3 hours 13. Working hours: about 7 days 14. Standby time: about 20-25 days 15. Operation mode: touch + button 16. Waterproof grade: IP68 16. Magnetic fast charging, more convenient to use, fast full charge 17. LED light sensor design on the back of the watch, real-time monitoring of heart rate