R11M Smart Ring IP68 Waterproof Sleep Ring Bluetooth-Compatible 5.0 Step Distance Calorie Counter for Men Women for Android iOS

High-concerned chemical : None Model Number : R11M Metrics measured : Heart Rate Monitor,Sleep Monitor,Blood Oxygen Monitor Item Weight : 74.00 Certification : None Origin : Mainland China Brand Name : Shunmaii Sport Health Ring : Fitness Ring Sleep Ring : Health Monitor Origin : Mainland China Certification : ce,FCC Model Number : R11M Hign-concerned Chemical : None Color : Black, Rose Gold (optional) Chipset Supplier : Jerry Chipset : Jerry AC6323 APP : Smart Health RAM Memory (main control built-in) : 4Mb BT : 5.0 Bluetooth-Compatible chip Acceleration sensor : SC7A20H Heart rate : Goodix GH3018 Battery type : polymer lithium ion Capacity : 20mAh Charging method : magnetic charging Waterproof level : IP68 Charging time : about 1-2 hours Appearance material : epoxy resin + stainless steel Net weight : 3.5-4.4g Gross weight : 74g Packaging size : 76*75*44mm