Feature: 1. Multiple Function Support: The smart ring can support the basic functions: pedometer, mileage, calories, multi sports and sleep, health detection, sleep health detection, body fatigue assessment, remote upgrade, data synchronisation function perfect life. 2. Intelligent Pedometer: The smart health ring supports a variety of exercise modes, accurately calculates the number of steps per day, helps users detect the amount of exercise, and facilitates the development of your exercise programme. 3. Exercise Mode: The sports health ring can intelligently detect different exercise modes and provide personalised exercise data analysis. Detect your sleep, activity, and situation in a low profile. 4. Premium Material: The sleep detecting ring is made of premium metal stainless steel, which is sturdy and reliable. Exquisite appearance, practical and fashionable at the same time, perfect as a gift choice for friends and family. 5. Automatic Detection: Intelligent ring can be used for sleep health detection, body fatigue assessment, the smart ring can automatically detect various data and other functions, no need for users to use manually. Specification: Item Type: Smart Ring Material: Metal, Electronic Components Ring Battery Capacity: Lithium Battery 20mAh (Shipped with Built in Battery) Charging Method: Magnetic Charging Charging Time: Approx. 1 hour Waterproof Level: IP68 . Package List: 1 x Smart Ring 1 x Charging Cable 1 x User Manual