The automatic compass on the mobile phone is horizontal.

Yes, many modern mobile phones have built-in compass function, and some compass applications also provide horizontal function. For iPhone users, they can find the functions of compass and level meter in their Compass application. After opening the application, switch to compass mode or horizontal mode to view current and direction or levelness information. For Android phone users, different phone manufacturers offer different compasses or checkpoint applications. Search Compass or Level in the app store, find the appropriate application, and then follow the application's guide.