cnBro V2-RING

●Take it all in. Get it all done. - Step/distance/calorie calculation - Heart rate - B-Oxy saturation - Sleep tracking - Mental stress index monitoring - Multi-sports mode - Smart reminders: sedentary, low battery, heart rate warning ●FIVE size types(inch) ○size #8:Inner circumference：2.24in ○size #9:Inner circumference：2.33in ○size #10:Inner circumference：2.45in ○size #11:Inner circumference：2.55in ○size #12:Inner circumference：2.67in ●The most durable cnBro Smart Ring ever built. ○Crack Resistant/Dust Resistant/Water Resistant ●Charges in no time. ○15mAh About 0.5H Charging time and 3~5 days of use, 7 days of standby ◎SPECIFICATION: System Requirements：Android 6.0 and above, iOS 12.0 and above, Bluetooth 5.2 support ◎WHAT'S IN THE BOX - 1*Ring - 1*User Manual - 1*Magnetic charger ★Any questions,please kindly contact us,we would always offer best solution to you.