Maximum size od the screen should be 4,3 inches, because anything larger than that makes the device almost impossible to use with one hand. Optimal size iz 4 inches.
I think 4.3 inch screen is d ideal size for smart-phones as SG2 for doing everything :)
Its all about the phones dimensions not the screen but the smaller the dimensions the better, on a 4.5inch screen. 4.2inch is the ideal screen size though.
Well with slight design changes screen this huge COULD become usable for one hand operation, see the sketch here:
I prefer middled sized ones. I think 3.7 inches is good for me, such as the sony ericsson xperia neo which fits exactly in my hand and pockets. Anyways, everyone has his own taste...
Ideal size 3.7 to 4 inches. Best for viewing / weight / comfort / ease in carrying.
Any size bigger than GS2 will be too big to handle. It's good to have big screen but not big size phone.
4" with 2:3 aspect ratio
Ultimately narrow bezel and
Well an apple logo in the back
I'll go for a larger screen size. Samsung Galaxy Note is among my preferred sizes. Another reason is that you don't necessarily need to use your reading glasses to be able to use the set.
I have a Nokia N8 from 18 months ago. Weight and thickness was a real issue for me between choosing this and the heavier HTC Desire HD as I wanted to be able to slip it in and out of my jeans pocket easily and to be able to sit down comfortably. I have no regrets about my decision, but I will be looking for a 4 to 4.3 inch phone, thin and relatively light. Top of my current choices are the Galaxy S2 and the HTC One S (the One X is too big).
SE xperia neo 3.7 inch screen is greath, i don't ned bigger. 4" would be max for me, if bigger than tablet. iphone screen is greath.
I guess 4.5 is the best,but on the other hand there are not so many devices with 4.5.we have lots of 4.3,or 4.7(that is a little too much for me)