R10M SIZE 13 Smart Ring, Support Heart Rate Blood Oxygen Sleep Monitoring Multiple Sports Modes<br> About Product<br> 1. Chipset: AC6323<br> 2. Bluetooth: 5.0<br> 3. Sensor chip: SC7A20H<br> 4. Battery Capacity: 15mAh<br> 5. Battery life: 3-5 days of use and 7-10 days of standby<br> 6. Charging time: About 1-2H<br> 7. Waterproof: IP68<br> 8. Size 13: Dia 22.2mm; Circumference 69.7mm<br> 9. Charging method: Magnetic charging<br> 10. Compatible system: Android5.1 or above, iOS8.0 or above<br> 11. APP: Smart Health<br> 12. APP support language:English, Simplified Chinese, Traditional Chinese, Russian, Ukrainian, German, French, Italian, Spanish, Portuguese, Polish, Greek, Romanian, Hungarian, Czech, Slovak, Irish, Croatian, Swedish, Danish, Finnish, Arabic, Farsi, Norwegian, Japanese, Korean, Thai, Vietnamese<br> Packing list:<br> Smart ring x 1<br> Charging cable x 1<br> User manual x 1<br> COMPATIBLE retail box x 1