R09M Fashion Stainless Steel Smart Ring Heart Rate Blood Oxygen Pressure Monitor Intelligent Finger Ring IP68 Waterproof Rings

Product Parameters: CPU: Nordic NRF52832 Material: Stainless Steel+Epoxy Resin Bluetooth Version:5.3. Battery capacity:18mAh. Usage time:3-5 days Charing time: About 1 H. G Sensor:STK8321-W. Heart Rate Sensor:HX3605. Magnet Cable(With SMT Protect IC). Waterproof Level:IP68. Charging Requirement:Charging 1A or less. APP:Smart Health system requirements:"Android: 6.0 or above./iOS: 11.0 or above. Size China Size 18 =(Inner diameter circumference 58.1mm)= Diameter 18.5mm China Size 20 =(Inner diameter circumference 62.1mm)= Diameter 19.8mm China Size 22 =(Inner diameter circumference 68.4mm)= Diameter 21.8mm APP supports languages English, Simplified Chinese, Traditional Chinese, Russian, Ukrainian, German, French, Italian, Spanish, Portuguese, Polish, Greek, Romanian, Hungarian, Czech, Slovak, Irish, Croatian, Swedish, Danish, Finnish, Arabic, Farsi, Norwegian, Japanese, Korean, Thai, Vietnamese Warm tips Waterproof: It is just life waterproof. It is not allowed to soak the smartring in water! (Please be careful to avoid corrosive liquids like hand sanitizer, soap enter the smart ring and cause component damage.)