Elegant DesignR18 smart ring features exquisite enamel craftsmanship, combining style with functionality in a sleek, waterproof design. Comprehensive Health MonitoringTracks heart rate, blood oxygen, exercise, and sleep patterns, providing real-time insights into your overall well-being. Multi-Sport ModesSupports various activities including running, cycling, jump rope, hiking, yoga, golf, and dance, recording exercise data in real-time. Long Battery LifeEnjoy 3-5 days of active use or 7-10 days on standby, with a convenient magnetic charging case for easy power replenishment. Smart FeaturesRemote camera control function allows you to capture photos by shaking the ring, adding convenience to your photography. Durable ConstructionMade with epoxy resin and stainless steel, featuring a beautiful enamel surface for both aesthetics and durability. Specifications: Basic Parameter Ring Internal Diametermm 6 16.5mm, 7 17.3mm, 8 18.1mm, 9 18.9mm, 10 19.8mm, 11 20.6mm, 12 21.4mm, 13 22.2mm Weight 3.0~4.0g Major function Steps, distance, calorie counting,Heart rate, Blood pressure, Blood Oxygen, sleep Monitoring, Care for faimilies(add friends), Remote camera Chipset AC6323 APP Smart Health Compatible System Android 5.1 or Above, IOS8.0 or above RAM Memory 4Mb Type Not supported Screen size Not supported Resolution ratio Not supported Encoder Not supported Touch Type Not supported Connection parameter BT V5.0 Bluetooth-compatible chips BT Call Not supported WIFI Not supported NFC Not supported Sensor Sensor SC7A20H Gyroscope Not supported Heart Rate Goodix GH3018 GPS Not supported Battery Type Lithium Polymer Capacity Ring: 20mAh, Charging case: 400mAh Charging Method Magnetic Charging APP Software features Smart Health Steps, Miles, Calories, Motion data recording Heart rate monitoring, Blood pressure, blood oxygen monitoring, Sleep monitoring, body fatigue assessment Multiple exercise modesRunning, cycling, skipping, hiking, mountaineering, yoga, golf, dancing Supported languages: English, Simplified Chinese, Traditional Chinese, Russian, Ukrainian, German, French, Italian, Spanish, Portuguese, Polish, Greek, Romanian, Hungarian, Czech, Slovak, Irish, Croatian, Swedish, Danish, Finnish, Arabic, Farsi, Norwegian, Japanese, Korean, Thai, Vietnamese Other Partmeter Waterproof Level IP68 Charging time around 1-2 hours Life time 3-5 days, Stand by time 7-10 days Appearance material Epoxy Resin+stainless steel (Color enamels) Package included: 1 x Smart Ring 1 x Charging Case 1 x Charging Cable 1 x English Instruction Manual Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 1160 hours Hope you have a pleasant shopping experience!