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

https://delta-wiki.win/index.php/Is_There_a_Single_Standard_Mobile_Screen_Size_Designers_Target%3F

Designing a full-sized game for a five-inch screen is all about making smart choices, not just shrinking everything. You focus on touch-first controls that feel natural in your hand. You decide if portrait or landscape fits the gameplay best