Learn how jewelry uses a tracker that can be used as an eternal accessory and has a bright color display. Get better sleep for your day through sleep tracking and sleep scoring in the application. When you reach the target heart rate zone, feel the buzz and earn the activity clock. Through the 24/7 heart rate tracking function, give full play to your exercise effect, understand the resting heart rate trend, and better estimate calorie consumption. Use health indicators such as respiratory rate and heart rate variability to adjust your body (in App only) Enjoy the battery for up to 5 days without stopping charging (depending on usage and other factors).