1. Bluetooth version: Bluetooth 4.0
2. Compatible system: IOS8.0 and above, Android5.0 and above
3. Control: touch control
4. Main functions: heart rate and blood pressure monitoring, step counting, calorie consumption, distance, number of steps, automatic sleep monitoring, incoming call vibration reminder (caller number/name display), information display, alarm clock reminder, anti-lost mobile phone, remote camera, etc.
5. Screen size: 0.86" OLED