Why is there an interruption in the heart rate data for workout recording?

After the App starts exercising, the ring will continue to generate heart rate, step count and other data, keeping the App connected to the ring, these data will be transmitted back to the App, and displayed and recorded by the App. If the ring is disconnected from the App during the process, it will result in this data not being able to be synchronized to the App, resulting in intermittent heart rate data being recorded during workout. You need to make sure that the App is running in the foreground and the distance between the ring and the App is no more than 1.5 meters.