[Right Size for You] Before purchasing,please refer to the standard ring sizes (second picture)to choose the right size for you. Size 8, 9, 10, 11 are available.,【Sleep Ring: Comprehensive Sleep Analysis】Comprehensive understanding of sleep behavior and physical condition by analyzing sleep efficiency, latency, time, stage, movement and more. The sleep tracking feature makes it an ideal health companion.,[Heart Rate Monitoring] Using advanced dynamic monitoring technology, the smart ring leads the new era of heart rate monitoring which can accurately record your heart rate changes, so that you can know your health status anytime, anywhere.,【Health Ring: Enhance Your Health】Experience a variety of indoor and outdoor activities with the Smart Ring app. Easily track steps, distance, calories and pace by simply wearing the ring. Analyze mapped routes and detailed workout data to improve your performance and exceed your limits.,[Multi-sports Mode] Support a variety of sports and map track sports, including brisk walking running, cycling, step counting etc. APP records the exercise data, such as exercise time, exercise distance, heart rate change, calorie consumption, etc., to better understand the factors affecting health and exercise ability.