Smart Ring Silver Health Tracker Activity Tracker Heart Rate Monitor Sleep Recorder Activity Reminder IP68 Waterproof Level 12# Silver

[24 Kinds of Sport Modes]This smart ring is equipped with the top chip in the sports bracelet industry: the German DIALOG DA14531, which is excellent in the recording of sports data. 19 regular sports modes + 5 GPS sports modes make sports more scientific and efficient. Let you know more about your body through the data.
[Heart Rate Monitor]It is also equipped with heart rate detection function. App initiated heart rate test / All day dynamic rate trend and data analysis / Heart rate data analysis / The last 7 heart rate measurement trend / Heart rate historical data, these functions protect the heart health at all times.
[Sleep Data&Blood Oxygen Monitoring]In addition the product is equipped with sleep detection and blood oxygen detection functions, sleep data statistics, sleep ratio, sleep score, sleep analysis, average sleep heart rate and other functions also for your health.
[8 Kinds of Sizes] There are 8 sizes of inner diameter 16.5mm~22.3mm. #6(Inner Diameter 16.5mm)#7(Inner Diameter 17.4mm)#8(Inner Diameter 18.2mm)#9(Inner Diameter 19.0mm)#10(Inner Diameter 19.9mm)#11(Inner Diameter 20.7mm)#12(Inner Diameter 21.5mm)#13(Inner Diameter 22.3mm) corresponds to different sizes of fingers of hands. *It is recommended that the inner diameter of the thickest part of the knuckle be used as the standard for purchase.
[Super Endurance&IP68 Waterproof Level]The battery capacity is up to 17.5mah and can be fully charged in 2 hours. Fully charged can be used for up to 9 days. The shell is made of tungsten steel, even if and keys and other sharp metal friction, there will be no scratches can rest assured that the use of IP 68 level of protection, it is NO PROBLEM to be placed underwater 10 meters for a maximum of 30 minutes. Daily hand washing, sports sweat and other use scenarios do not need to be removed.