Designing a full-sized game for a five-inch screen is about setting clear...

https://www.charliebookmarks.win/designing-a-full-sized-game-for-a-five-inch-screen-is-all-about-choosing-what

Designing a full-sized game for a five-inch screen is about setting clear priorities instead of just shrinking everything down. It means focusing on touch-first controls that fit naturally in your hand