
Why did Apple go with a 3.5″ display when most newer Android devices are moving to 4″ screens? Here’s one explanation from blogger Dustin Curtis:
I have realized another huge downside of larger screens: when holding the phone with one hand, I can’t reach the other side of the screen with my thumb.
Touching the upper right corner of the screen on the Galaxy S II using one hand, with its 4.27-inch screen, while you’re walking down the street looking at Google Maps, is extremely difficult and frustrating. I pulled out my iPhone 4 to do a quick test, and it turns out that when you hold the iPhone in your left hand and articulate your thumb, you can reach almost exactly to the other side of the screen. This means it’s easy to touch any area of the screen while holding the phone in one hand, with your thumb. It is almost impossible to do this on the Galaxy S II.
This makes perfect sense and fits in with how Steve Jobs did things. And it also shows how brilliant Apple is when it comes to designing products.
LESSON: When creating products, don’t give in to spec sheet envy when you know the right answer is something different.



The thing I found most interesting was the concept of “the penny gap.” I hadn’t heard this before.