Ultralight comfort: The smart ring weighs 4.4 grams, minimizing movement restriction during exercise and reducing pressure on the hand to help prevent discomfort or injury. Health monitoring: An optical sensor tracks key body data and provides clear, actionable readings. A builtin accelerometer estimates sleep duration from movement patterns and offers sleep quality feedback as a reference. Comprehensive activity tracking: Accurately records daily activity and calculates steps, distance traveled, calories burned, and heart rate fluctuations across multiple sports modes. App compatibility: Syncs monitored data to your phone via the companion app, compatible with Android and iOS. The app delivers detailed charts to help you monitor your activity progress and overall health. Material and care: Made from stainless steel with a metallic luster and modern aesthetic. Easy to clean and maintain. Use scenarios: During workouts such as running or other sports, track steps, distance, calories, and heart rate without interfering with movement. Allday wear to monitor daily activity and sleep, providing sleep duration estimates and quality feedback as a reference. Use with Android or iOS devices to view detailed charts and monitor your activity progress and health status through the app.