You have to also consider that when 5" was big, bezels were big too. With today’s thin bezels the same physical size that used to hold 5" could probably hold 5.5".
It also used to be commonplace to have a physical home button below the screen on a number of flagship devices, along with the camera being positioned separate from the screen.
I feel like that could bring us closer to a modern equivalent of 6” screens in the same body
You have to also consider that when 5" was big, bezels were big too. With today’s thin bezels the same physical size that used to hold 5" could probably hold 5.5".
It also used to be commonplace to have a physical home button below the screen on a number of flagship devices, along with the camera being positioned separate from the screen.
I feel like that could bring us closer to a modern equivalent of 6” screens in the same body