R04 SIZE 11 Smart Ring, Support Heart Rate / Blood Oxygen / Sleep Monitoring / Take Photos(Black)

About Product
1. Chipset: Jeri
2. Bluetooth: 5.4
3. Sensor chip: STK8321-W
4. Battery Capacity: 15mAh(18mAh for size 9 and above)
5. Battery life: 5-7 days of use and 15 days of standby
6. Charging time: around 1.5 hours
7. Waterproof: 5ATM
8. Size 11: Dia 20.8mm; Circumference 65.4mm
9. Charging method: Magnetic charging
10. Compatible system: Android5.1 or above, iOS8.0 or above
11. APP: QRing
12. APP support language:Danish, Ukrainian, Russian, Croatian, Hungarian, Hindi, Indonesian, Türkiye, Hebrew, Greek, German, Italian, Latvian, Czech, Slovak, Slovenian, Japanese, French, Polish, Thai, Estonian, Swedish, Lithuanian, Simplified Chinese, Traditional Chinese, Romanian, English Dutch, Portuguese, Spanish, Vietnamese, Arabic, Korean, Malay

Major function
1. Daily activities: Step count, distance, calorie calculation
2. Health management: heart rate measurement, blood oxygen saturation, HRV heart rate variability, stress, sleep tracking, multiple exercise modes
3. Other functions: remote control for taking photos, searching for rings, female physiological reminders

Packing list:
Smart ring x 1
Charging line x 1
User manual x 1
Original retail box x 1