1. Bluetooth version: BLE5.0&BLE4.0
2. Battery: 200mAh
3. RAM (random access memory): 128M
4. External Flash: 128M
5. System support: Android 4.4 or above and IOS 9.0 or above, suitable for iPhone 5S or above
6. Ultra-low power consumption, 45 days standby
7. Function: Bluetooth call, real-time heart rate monitoring, blood oxygen monitoring, sleep monitoring, call reminder, alarm clock, look up watch, look up cell phone, push information, etc.
8. Charging time: about 3 hours
9. Working time: about 35 days
10. Size: 46.5x10.8mm