R18 SIZE 9 Smart Ring, Support Heart Rate / Blood Oxygen / Sleep/ Multiple Sports Modes(Black)

About Product

1. Main Chip: Dialog DA14531-01

2. Bluetooth: 5.1

3. Sensor chip: SC7A20

4. Battery Capacity: 17.5mAh

5. Battery life: 8-10 days of use and 10-15 days of standby

6. Charging time: 2H

7. Waterproof: IP65

8. Size 9: Dia 19mm/0.75 inch

9. Charging method: Magnetic charging

10. Compatible system: Android5.0 or above, iOS10.0 or above

11. APP: JRING

12. APP support language: multilingual languages

Packing list:

Smart ring x 1

Charging cable x 1

User manual x 1

Original retail box x 1

Specification: