Designing a full-sized game for a five-inch screen is all about focusing on...

https://star-wiki.win/index.php/Pixel_Density_and_UI_Sizing:_Why_My_Buttons_Look_Tiny

Designing a full-sized game for a five-inch screen is all about focusing on what matters most. Instead of just shrinking everything, you prioritize touch-first controls that feel natural on small devices