This auxiliary app needs to be linked with a smart ring or bracelet. After connecting to a smart device, you can monitor your body data in real time and understand your health status. You can also manage the functions of your smart wearable device through the app, and you can use extended functions such as Bluetooth camera shooting, low battery reminder, and Apple Health. However, you can rest assured. The Bluetooth camera shooting and Apple Health data synchronization functions in the app will only work after the user grants relevant permissions. Before obtaining permissions, the data recorded in the app will not be synchronized to your phone. Tip: Our smart devices are not medical devices, so health data cannot be used as medical diagnosis evidence.