Sunto weather

The air pressure trend is actually a chart of the past 24 hours. If it is always horizontal, it is possible that the state you set is automatic mode, that is, the watch automatically judges according to the current air pressure change and automatically switches between air pressure mode and altitude mode. When switching from altitude mode to air pressure mode, the air pressure trend is of course horizontal, because the past air pressure value is not recorded. Because you often go up and down tall buildings (I guess), your watch has been switching between two modes.

It is recommended to set it to air pressure mode and observe it for several hours to see if the trend chart has changed. If there is no change, there is something wrong with the air pressure sensor!