Why is the article using diagonal screen size as their measurement for phone size? In that case you could have a phone the exact same size get “bigger” just because bezel sizes have shrunk over the years.
Because, for a touch screen, the screen itself IS the user interface. Imagine while holding with one hand, you want to reach your thumb to the opposite corner to hit a button. Even if the body of the phone is the same, a larger screen will need a bigger reach for your thumb. That is primary issue.
Why is the article using diagonal screen size as their measurement for phone size? In that case you could have a phone the exact same size get “bigger” just because bezel sizes have shrunk over the years.
Because, for a touch screen, the screen itself IS the user interface. Imagine while holding with one hand, you want to reach your thumb to the opposite corner to hit a button. Even if the body of the phone is the same, a larger screen will need a bigger reach for your thumb. That is primary issue.