I'm developing a react native app, i've noticed that the same font size 13 px looks larger on an s25 ultra than on my iphone 12 by default.

I've done some research and by having different phones i've noticed spotify for example have the exact same visual font size on different screen sizes.

I don't know if thats the default behavior that the font scales up as the screen becomes larger but i don't want that to happen as the app doesn't look good when the fonts are larger.

I am trying to scale the font down now based on the screen width and height, but i've noticed that a galaxy M12 visually has larger screen than the iphone 12, but its width and height are smaller than the iphone 12's.

any help is greatly appreciated.