What does Xiaomi 6 think of respiratory rate? Step 1: Find and open the "Health" application in your Xiaomi mobile phone (complete information is needed to use this function for the first time), and then find "Test Heart Rate" on the home page;
Step 2: Then start the test. Before the test, you need to authorize the use of its camera, and then you can see the prompt, so that your finger will be placed on the camera to show the breathing frequency.