1. Main control chip: 7013A
2. Gravity sensor: Roma KXTJ3-1057
3. Cardiac chip: VP555ER
4. Optical chip: double PD-VP555ER
5. Temperature sensor: contact temperature sensor
6. Blood oxygen chip: infrared light + red light true blood oxygen
7. Bluetooth: 5.0 BLE
8. Screen: 1.57-inch 200x320 large touch screen
9. Touch control: full-screen touch control, cell phone APP control
10. Charging mode: magnetic charging (with protection)
11. Waterproof level: IP67
12. Battery capacity: 230mAh high-density polymer lithium battery
13. Charging time: about 3-4h
14. Use time: about 3-7 days
15. Standby time: about 30 days
16. Watch language: Chinese, Russian, English, Japanese, German, French, Italian, Spanish, Portuguese
17. APP language: Simplified Chinese, Traditional Chinese, English, Hungarian, Turkish, German, Italian, Czech, Slovak, Japanese, French, Polish, Persian, Portuguese, Spanish, Vietnamese, Arabic, Korean
18. Compatible systems: Android 4.4 and above, iOS 8.2 and above
19. Shell material: metal alloy + stainless steel
20. Bottom case material: PC + ABS + 316 steel plate
21. Wrist strap material: environmental protection silicone / leather
22. Size: about 4.5 x 2.9 x 1.1cm

Function:
1. Support: ECG ECG function, Bluetooth call, non-invasive blood glucose measurement, HRV function, AI medical diagnosis, Meituo function, temperature monitoring, blood oxygen monitoring, respiratory training, stress monitoring, womens health (menstrual tracking), heart rate monitoring, blood pressure monitoring, sleep monitoring, sedentary reminder, and other health features
2. Exercise function: step/calorie/distance counting, multi-sport mode
3. Other functions: stopwatch, flashlight, countdown, step counting, calorie counting, distance counting, sleep monitoring, sports mode, incoming call reminder, alarm clock reminder, hand-raising screen, social sharing (WeChat, QQ, Facebook, Twitter), etc.
4. Message alerts: incoming calls, SMS, emails, WeChat, QQ, etc.
5. Caring: family sharing real-time data
6. Dial selection: APP multiple dial selection, customized dials
7. APP Name: Hband