What does the air pressure on Huawei watches mean?

The air pressure on Huawei watches usually refers to the air pressure value of the current position, that is, atmospheric pressure. It is usually used to measure altitude and predict weather changes. When the watch senses the change of air pressure, it will automatically measure the air pressure and display the current air pressure value. By observing the change of air pressure, we can roughly judge the turning trend of the weather. For example, a drop in air pressure may mean a warning of rain or a storm. It should be noted that the air pressure value is also affected by factors such as seasons, topography and climate, so the air pressure value at different times and places may be different.