Smart Ring HRV Heart Rate Blood Oxygen Sleep Monitor Time Display Prayer Counter Multiple Sports Modes Calorie Calculation R12

Main functions1> Daily activities: Step count, distance, calorie calculation2> Health management: heart rate measurement, blood oxygen saturation, sleep tracking, multiple exercise modes, stress, heart rate variability3> Touch function: single point switching display function, long press to switch font direction when the screen is on4> Display: time, steps, heart rate, battery level, likes count5> Other functions: remote control for taking photos, searching for rings, gesture control, gaming, female cycleWeight: 3.2g (size 7)Ring size inner diameter: size 7 17.4mm, size 8 18.3mm, size 9 19.1, size 10 20mm, size 11 20.8mmNo.12 21.6mm, No.13 22.3mmAPP：QRingCompatible systems: Android 5.1 or above, iOS 8.0 or aboveBluetooth: 5.2Capacity: 18mAhAPP supports languages: 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