It contains many items, namely heart rate, blood oxygen, blood pressure and blood viscosity. When carrying out these physical examination items, you are required to put your finger on the camera, and then the App will turn on the flash and let the camera record the blood image of your finger. By consulting the instructions, it is found that the principle of physical examination treasure is to capture the pulsation of capillaries to detect data.
Of course, this accuracy is beyond the professional instruments in the hospital. You can also take a test at ordinary times. The data is for reference only.