cnBro US-X-R11MA - Gold #9(Inner circ2.34in)

There is a conversion error between international size units, please choose the appropriate size based on the actual measurement data. Take it all in. Get it all done. - Step/distance/calorie calculation - Heart rate - B-Oxy saturation - Blood pressure monitoring - Sleep tracking - Multi-sports mode ●FOUR size types(inch) ○size #8: Inner circumference：2.24in ○size #9: Inner circumference：2.34in ○size #10: Inner circumference：2.44in ○size #11: Inner circumference：2.54in ○size #12: Inner circumference：2.65in ●All-new colors. ○Champagne Gold/Black/Silver ●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*Ring Box - 1*User Manual - 1*Magnetic charger ★Any questions,please kindly contact us,we would always offer best solution to you.