1. Display: 1.32 inch 360x360 HD color screen 2. Chip: GR5515 3. Battery capacity: 200mAh 4. Waterproof grade: IP68 5. Standby time: 15 days 6. Bluetooth version: 5.1 7. Support system: Applicable to iOS8.0 or above, Android4.4 or above 8. Charging time: 2h 9. Material: tempered glass/zinc alloy/TPU 10. Built-in a variety of sports modes, free to change as you like. 11. Built-in NFC access control system, easy travel, unimpeded. 12. Built-in weather forecast function to monitor weather conditions in real time. 13. Incoming call message reminder, no need to check it on your mobile phone. 14. Using high-quality low-power chips, it can stand by for a long time in daily use. 15. 24-hour intelligent heart rate monitoring, blood pressure monitoring, blood sugar monitoring, body temperature monitoring, to protect your health at all times. 16. Sleep quality monitoring, accurately record sleep information every night. 17. Life waterproof, effectively prevent sweat or raindrop splash. 18. Support Chinese, English, Japanese, French, German, Italian, Spanish, Russian, Portuguese