High quality brand new Health Smart Ring: The health ring can monitor your hear rate and blood pressure at any time with one click on the App, allowing you to better understand your physical condition and make corresponding adjustments. Built-in automatic sleep tracker can monitor your sleep status and provide a comprehensive sleep quality analysis (deep sleep, light sleep, and wake-up time), allowing you to develop good sleeping habits.Minimalist and Comfortable: Our Smart Ring is designed to be discreet yet stylish, allowing you to stay connected without compromising on fashion. Its minimalist design ensures it blends seamlessly with your everyday look. And the compact body weighs only 4g, so that you can really experience the senseless wear.IP68 Waterproof Ring: IP68 waterproof technology support swimming, washing hands, cold showering and rain, giving you convenience during daily life. Note: please keep away hot water or steam.Compatibility & After-Sales: Suit for smart phone with Android 5.1 or iOS 8.0 and above system If you have any question, contact us and we will offer satisfied solution within 24 hours. Please choose the right size, if it is too loose, it will affect the accuracy of the data.Sport Fitness Ring: Collect everyday steps, calories consumption and distance walked automatically. Turn on the sport modes in the App, it will additionally track your sport route, activity time, and heart art rate during exercise, this allows you know when you should save motivation or keeping exercise hard, also let you know the real-time sport performance.