Feature: 1. Sleep Monitoring: Monitor throughout, record your sleep duration and identify sleep states through the big data analysis of the APP help you understand your sleep quality. 2. Exercise Monitoring: Record calorie burn and daily metabolism during exercise. Indoor running, suitable for outdoor running, treadmill, health walking. Recognize your multiple exercise modes. 3. IP68 Waterproof: Fearless of wind and rain reliable companion. No need to take off in scenarios such as brushing teeth showering, so you can continuously monitor your health during all kinds of outdoor activities. 4. Real Time Monitoring: The ring needs to be connected to the mobile phone via bluetooth, keep the bluetooth on, and the app will automatically connect when it is launched. 5. Stay Active And Motivated: Smart ring keeps you motivated to stay active by monitoring your steps and activity levels throughout the day. Set daily goals and receive real time notifications to keep you on track and maintain a healthy lifestyle. Specification: Item Type: Smart Health Ring Material: Metal Ring Battery: Lithium battery 18mAh (shipped with built in battery) Charging Case Battery: Lithium battery 300mAh (shipped with built in battery) Charging Time: Approx. 1h Working Time: 3-5 days. Package List: 1 x Smart Health Ring 1 x Battery Case 1 x Charging Cable 1 x User Manual