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

https://www.bust-bookmark.win/designing-a-full-sized-game-for-a-five-inch-screen-means-focusing-on-priorities

Designing a full-sized game for a five-inch screen is about making smart choices, not just shrinking everything down. You start by putting touch-first controls front and center, so players can easily tap and swipe