Bluetooth-compatible Smart Ring Sleep Tracking Smart Ring Heart Rate Blood Oxygen Sleep Monitoring 5-7 Days Battery Life

Specification:
Origin: Mainland China
Certification: ce
Chipset: RF03
APP: QRing
Compatible system: for Android5.1 (inclusive) and above, compatible with IOS8.0 (inclusive) and above
FLASH memory: RAM208KB FLASH 512KB
BT: 5.0 low-power Bluetooth-compatible chip
Acceleration sensor: Silicon Creation STK8321
Heart rate: Vcare VC30F
Battery type: polymer lithium ion
Capacity: 15mAh
Charging method: magnetic charging
APP software function:
QRing: step, sleep, heart rate, exercise data recording
Health monitoring, pressure, blood oxygen measurement
Multiple sports modes, photo taking
Supported languages: Danish, Ukrainian, Russian, Croatian, Hungarian, Hindi, Indonesian, Turkish, 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
Waterproof Level: 5ATM
Charging time: about 1 hour
Life time time): 5-7 days of use, 15 days of standby
Ring size inner diameter (mm): No. 7 17.9mm, No. 8 18.3mm, No. 9 19.2, No. 10 20mm, No. 11 20.9mm, No. 12 21.6mm
Product weight: 4.4g
Packaging box size (L*W*H): 75*75*43mm
Packaging weight (g): 70g

Note:
Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!
Please allow 1-2cm measuring deviation due to manual measurement.