Feature:1. Health Monitoring: Smart ring health tracker can accurately monitor your body health informations, keeping track of your overall health status in real time conveniently.2. Sleep Monitoring: Smart health ring automatically monitors sleep quality, which can record sleep patterns clearly to help improve the quality of your sleep, suitable for daily use.3. Waterproof: Smart ring fitness tracker adopted waterproof design, which is wearable in daily activities like hand washing and swimming, no need to worry about water damage.4. Bluetooth Connection: Fitness tracker ring adopted Bluetooth technology, easily connect to your phone, allowing you can view data and make necessary adjustments at any time.5. Fashionable and Portable: Smart ring made of ABS and metal materials, with exquisite and fashionable, which is suitable for various places, offers a comfortable wearing experience.Specification:Item Type: Smart Ring Health TrackerMaterial: ABS, MetalBattery Capacity: Lithium Battery 20mAh (Included)Function: Bluetooth Ring for Sports, Sleep Monitoring, Waterproof.Package List:1 x Smart Ring1 x Charging Case1 x Data Cable1 x User Manual