Nova Ring Multifunctional Health Monitoring Smart Ring - Silver/13-22.3mmMinimalist pure hidden fine technology: Smart rings are not just rings, not only technology but also the pursuit of excellence. They are smart products that originate from intelligence and are sublimated in aestheticsBreakthrough and innovative wearable product: Comfortable, non-sense wearing experience and extremely light-weight make it stand out from other smart wearable products. obtain accurate health information easily and happilyUnprecedented elegance: The minimalist appearance surpasses the cumbersomeness of traditional wearable products: stylish, simple, and elegant. Excellent both internally and externally, displaying the pinnacle of appearance and hardware greatnessFree activities: The app provides dozens of sports: GPS sports, indoor, outdoor, etc. wear the ring to exercise and you can view and record your sports data including steps, distance, calories, heart rate, pace, etc. Check the map path tracking and detailed exercise data, learn more about your past exercise details, and break through your limitsCapture every heartbeat information: Heart health research has been furthered. through heart rate variability data you can understand the degree of heart health, cardiovascular capacity, and stress tolerance. The level of heart rate variability at night can also predict the risk of sleep apnea syndromeSpecifications:WaterproofIP68MaterialTitanium alloyWeightAbout 2.9gChipsetGoodix GR5515GGBDMemory (ROM+RAM)1Mb ROM + 256Kb RAMG-SensorST LIS2DW12Bluetooth Version5.1MobileAPP-GPSYesHeart rate sensorGoodix GH3026Battery TypeLithium-ion polymer batteryOperating temperature range0-50Battery CapacityAbout 17mAhCharging time1 hourTheory Standby time10-15 daysNormal using time4-6 daysChargingMagnetic charging cableSoftware Function & App CompatibilitySupports Android 5.0 and above; iOS version 10.0 or aboveCompatibility Softwareworking with Nova RingSoftware Functions on the DeviceThe ring has no touch and no buttons; the App initiates activities and function testsSoftware Functions on the AppActivity (Distance/Calories/Steps Statistics/7-day vigorous activity, etc.), Multisports (24 kinds: 19 conventional sports + 5 GPS sports), Heart rate, Sleep, Blood oxygen, HRV, Stress, Others (Unit format, sedentary reminder, low battery reminder, heart rate warning), Wechat & Apple support, APP multi-Language supportSupport OTAYesAPP name for IOS & AndroidDa RingsPackage included:1 x Smart Ring1 x Cable1 x English and Chinese ManualOther items not includedPackage included:1 x Smart Ring1 x Cable1 x English and Chinese ManualOther items not included