Feature: 1. HEALTH TRACKING: Advanced sensors track key body signals and analyze health indicators such as exercise data and sleep quality to help users stay on top of their health. 2. FASHION AND TECHNOLOGY COMBINED: The smart ring features an elegant design combined with polished ceramic, making it both lightweight, stylish and comfortable. Meanwhile, it adopts energy saving technology and can monitor continuously for 7 days without interruption on a single charge. APP is compatible with for Android and for iOS systems, which makes it convenient for users to view and manage their health data at any time. 3. REINVENT A HEALTHY LIFE: By recording and analyzing health data, it can motivate users to choose a better life style to maintain health, vitality and balance. Whether you are concerned about fitness, focusing on sleep or wish to manage stress effectively, the smart ring can provide you with customized advice and guidance. 4. BEST GIFT: Smart ring is a kind of fingertip art, whether it is a wedding, graduation ceremony or housewarming party, it is the best gift choice. 5. IP68 WATERPROOF AND DUSTPROOF: It is IP68 rated waterproof and dustproof, so you can wear it in daily water related scenarios such as hand washing, bathing and swimming. Various sensors can still monitor health data at any time in water related scenarios. Specification: Item Type: Smart Ring Material: Ceramic, Stainless Steel Weight: Approx. 54g / 1.9oz Ring Battery Type: Lithium Battery, Ring Battery Capacity: 18mah (Built In) Ring Battery Life: About 7 Days Ring Charging Time: 60 Minutes APP: For JYouPro Color: Gold . Package List: 1 x Smart Ring1 x Instruction Manual1 x Chariging Cable