Advanced Health Monitoring The R99 Smart Ring offers comprehensive health tracking, including heart rate, blood oxygen, and sleep monitoring, with precise data analysis accessible via the appandbull Waterproof and Durable Design Constructed with an IP68 waterproof rating and stainless steel casing, this ring is built to withstand everyday wear, even in challenging environmentsandbull Comprehensive Activity Tracking Equipped with a high-accuracy step sensor and multiple sports modes (running, cycling, yoga, and more), the ring delivers accurate data for distance, calories, and steps, making it an ideal fitness companionandbull Wide Compatibility and App Integration The SmartHealth app supports Android 8.0and and iOS 10.0and, with features like camera control, sedentary reminders, and 31-language support, seamlessly integrating with WeChat Sports and Apple Health for a complete fitness experienceandbull Stylish Accessory and Smart Technology The R99 Smart Ring is more than just a health monitor itandrsquo s a sleek accessory crafted from stainless steel in silver, gold, and black options, combining functionality with style to enhance any outfitSpecifications:WaterproofIP68MaterialCase: Stainless SteelSize (Optional)7(17.4 mm),8(18.2 mm),9(19.0 mm),10(19.9 mm),11(20.7 mm),12(21.5 mm)Thickness2.6mmWeightAround 2.9gChipset (Main Chip Model)AC6323Memory (RomandRam)Flash: 4Mbit, RAM: 73KBG-SensorSTK8321Bluetooth Version5.3Mobileapp-GpsYesHeart Rate SensorGH3018Battery TypePolymer Pure Cobalt BatteryBattery ProtectionSupport lithium battery protection: Under-discharge protection voltage is 2.8V. Overcharge voltage when fully charged is 4.2VOperating Temperature Range-20 to 50Charging Management CircuitThe MCU has a built-in charging management PMU. The configurable charging current range is 5-300mA. It supports anti-reverseBattery Capacity20mAhCharging Time1.5-2 hoursTheory Standby Time7-9 daysNormal Using Time3-5 daysCompatibilityAndroid 8.0 and above iOS 10.0 and aboveOperationThe ring has no touch and no buttons App initiates movement and function testsMotion DataAccurate distance or accurate calorie data or accurate step countMultisportsRunning, Cycling, Rope Skipping, Walking, Mountaineering, Yoga, Dance, GolfStepandG-SensorSelf-developed ring precision step counting algorithm, with an accuracy rate of more than 95 percent Heart RateAPP launches heart rate test or Dynamic rate trend and data analysis or Heart rate historical dataHeart Rate AccuracyThe accuracy rate of static heart rate is more than 98 percent ,(compared with the laboratory test of heart rate belt)SleepPrecise sleep algorithm, sleep coach remindsBlood OxygenAPP initiated blood oxygen test or continuous blood oxygen data or historical blood oxygen dataCamera ControlThe app's shake-to-take-photo featureOthersUnit format, sedentary reminder, low power warning, heart rate warningWechatandAppleAccess Wechat Sports and Apple HealthApp Multi-Language SupportThe app supports 31 languages: Simplified Chinese, Traditional Chinese, English, French, Italian, Spanish, Portuguese, Japanese, German, Polish, Hungarian, Russian, Ukrainian, Korean, Vietnamese, Thai, Croatian, Swedish, Norwegian, Danish, Finnish, Czech, Slovak, Irish, Arabic, Hebrew, Persian (Iranian), Turkish, Romanian, Greek, and IndonesianSupport OtaSupports OTAAppSmartHealthPackage included: 1x (1 heart rate ring) Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store