Nova Ring Multifunctional Health Monitoring Smart Ring - Silver/13 -22.3mm Minimalist 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 aesthetics Breakthrough 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 happily Unprecedented 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 greatness Free 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 limits Capture 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 syndrome Specifications: Waterproof IP68 Material Titanium alloy Weight About 2.9g Chipset Goodix GR5515GGBD Memory (ROM+RAM) 1Mb ROM + 256Kb RAM G-Sensor ST LIS2DW12 Bluetooth Version 5.1 MobileAPP-GPS Yes Heart rate sensor Goodix GH3026 Battery Type Lithium-ion polymer battery Operating temperature range 0-50 Battery Capacity About 17mAh Charging time 1 hour Theory Standby time 10-15 days Normal using time 4-6 days Charging Magnetic charging cable Software Function & App Compatibility Supports Android 5.0 and above; iOS version 10.0 or above Compatibility Software working with Nova Ring Software Functions on the Device The ring has no touch and no buttons; the App initiates activities and function tests Software Functions on the App Activity (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 support Support OTA Yes APP name for IOS & Android Da Rings Package included: 1 x Smart Ring 1 x Cable 1 x English and Chinese Manual Other items not included Package included: 1 x Smart Ring 1 x Cable 1 x English and Chinese Manual Other items not included