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

https://www.red-bookmarks.win/designing-a-full-sized-game-for-a-five-inch-screen-means-focusing-on-what-1

Designing a full-sized game for a five-inch screen is all about smart priorities, not just shrinking everything down. You focus on touch-first controls that feel natural in small spaces. Choosing portrait or landscape mode depends on the game’s needs