TK22 1.39 inch IP67 Waterproof Leather Band Smart Watch Supports ECG Non-invasive Blood Sugar 1. Main control chip: Realtek 8762D 2. Blood oxygen chip: VP60A2 blood oxygen heart rate + analog front end VC9202 3. ECG chip: ECG VC8808 4. Photoelectric chip: VP60A2 heart rate (dynamic and accurate dual PD heart rate acquisition) 5. Memory: 128Mb 6. Acceleration sensor: SENSORTEK STK8321 7. Support Bluetooth calls, ECG+PPG, body temperature monitoring, blood sugar monitoring, health monitoring (heart rate, blood pressure, blood oxygen, pressure real-time monitoring), sleep monitoring, remote relatives and friends care, call rejection 8. Bluetooth: Bluetooth LE 5.0 9. LCD: 1.39 inches, IPS high resolution 360X360 10. Touch control: capacitive multi-point full touch 11. Motor: support 12. USB: support 13. Charging method: 2PIN thimble magnetic charging 14. Side button: support 2 buttons 15. Waterproof: IP67 waterproof 16. Battery capacity: 280mah polymer battery 17. Other functions: stopwatch, flashlight, countdown, step counting, calories, distance, sleep monitoring, exercise mode, call reminder, alarm clock reminder, sedentary reminder, raising hand to brighten the screen, social sharing (WeChat, QQ, Facebook, Twitter) Wait, shake to take a picture 18. Multi-sport mode: supports 20 types: walking, running, mountain climbing, cycling, rope skipping, basketball, badminton, football, yoga, etc. 19. Message reminder: incoming call, SMS, email, WeChat, QQ, Facebook, Twitter, WhatsApp, LinkedIn, Instagram, Messenger, Snapchat, Line, Kakao Talk, Viber, Skype, telegram 20. Dial selection: 7+1 dial selections, (APP multi-dial, custom dial) 21. Remote control music: control the mobile phone player, pause, previous song, next song 22. APP name: DeepFit 23. OTA upgrade: support 24. Accessibility functions: SOS, dial pad, Siri dial, find phone, find bracelet, dial switch 25. Language: - Watch side: Chinese, English (default), Traditional Chinese, Japanese, French, German, Italian, Spanish, Russian, Po