•[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 APPSpecifications: Waterproof5ATTM class waterproof, diving or snorkeling can be worn to support more than 300 meters depth waterproofMaterialstainless steelSize 8(18.2 mm) 9(19.0 mm) 10(19.9 mm) 11(20.7 mm) 12(21.5 mm)Weight2.9K or soChipset (main chip model)German Dialog DA14531-01)-ultra-low power, more durableMemory (ROM+RAM)128kb ROM + 96 Kb RAMG-SensorSC7A20Bluetooth Version5.1MobileAPP-GPSYesHeart rate sensor3602Battery TypePolymer Pure Cobalt BatteryOperating temperature range0-50℃Battery CapacityAbout 17.5 mahCharging timeTwo hoursTheory Standby time10-15 daysNormal using time8-10 daysChargingMagnetic charging boxSoftware Function&AppCompatibilityAndroid 5.0 and above; for Apple IOS 10.0 and aboveCompatibility SoftwareJRINGRing functionOperationThe ring has no touch and no buttons; App initiates movement and function testsApp functionModuleNotesMultisportsMultiple movement modesHeart rateApp 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 dataSleepSleep statistics, sleep proportion, sleep score, sleep analysis, average sleep heart rate and so onBlood oxygenApp initiates oximetry test 7 times oximetry data 7 times Oxygenation trend oximetry historical dataWave your hand to take a picture immediatelyInnovative 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 photographerWeChat & for AppleAccess WeChat Sports and for Apple HealthAPP multi-Language supportNational language: MultilingualAPPSupport OTASupport for FOTA upgradesAPPJRINGPackage included:•1 x Smart Ring•1 x Charging Cable•1 x English User Manual