Huawei Bracelet 8 is a smart wearable device, mainly used to monitor the user's exercise and health data, such as steps, heart rate, sleep and so on. However, according to China's medical device classification and management regulations, medical devices are divided into three categories, of which Class II medical devices are those that diagnose, treat, monitor or replace the function of the human body. Huawei Bracelet 8 does not have a medical diagnostic or therapeutic function, and therefore does not belong to the second class of medical devices.