R18 Sleep Health Monitoring Ring Multifunctional Stainless Steel Smart Ring, Magnetic Cable Charging - Gold/Size 12 •[Multiple Sports Modes] Supports a variety of conventional sports + map track sports •[Deep Waterproof] Fully enclosed structure. Deep waterproof technology, durable to use •[Smart Health Expert] 7*24 real-time monitoring of heart rate, blood oxygen, and sleep status, smart gesture sliding of the phone, remote control of photography •[Comfortable to Wearing] Light and effortless to wear. The elegant art between your fingers is not only smart but also comfortable •[Faster Charging, Longer Battery Life] Fully charged in about 1 hour. You can check the battery level through the APP Specifications: •Waterproof •5ATTM class waterproof, diving or snorkeling can be worn to support more than 300 meters depth waterproof •Material •stainless steel •Size • 8(18.2 mm) 9(19.0 mm) 10(19.9 mm) 11(20.7 mm) 12(21.5 mm) •Weight •2.9K or so •Chipset (main chip model) •German Dialog DA14531-01)-ultra-low power, more durable •Memory (ROM+RAM) •128kb ROM + 96 Kb RAM •G-Sensor •SC7A20 •Bluetooth Version •5.1 •MobileAPP-GPS •Yes •Heart rate sensor •3602 •Battery Type •Polymer Pure Cobalt Battery •Operating temperature range •0-50℃ •Battery Capacity •About 17.5 mah •Charging time •Two hours •Theory Standby time •10-15 days •Normal using time •8-10 days •Charging •Magnetic charging box •Software Function and App •Compatibility •Android 5.0 and above; for Apple IOS 10.0 and above •Compatibility Software •JRING •Ring function •Operation •The ring has no touch and no buttons; App initiates movement and function tests •App function •Module •Notes •Multisports •Multiple movement modes •Heart rate •App initiates heart rate test/whole day dynamic heart rate trend and data analysis/heart rate data analysis/recent 7 heart rate measurement trend/heart rate history data •Sleep •Sleep statistics, sleep proportion, sleep score, sleep analysis, average sleep heart rate and so on •Blood oxygen •App initiates oximetry test 7 times oximetry data 7 times Oxygenation trend oximetry historical data •Wave your hand to take a picture immediately •Innovative design, so that you can easily capture the beautiful moment anytime and anywhere. Selfie new height, one finger trigger beautiful smart ring, remote control photography, so that you can easily become their own professional photographer •WeChat and for Apple •Access WeChat Sports and for Apple Health •APP multi-Language support •National language: Multilingual •APP •Support OTA •Support for FOTA upgrades •APP •JRING Package included: •1 x Smart Ring •1 x Charging Cable •1 x English User Manual Package included: •1 x Smart Ring •1 x Charging Cable •1 x English User Manual