The screen size is 3.5 inches diagonally. (The standard way to measure a screen)
with a 640x960 resolution.
Yes, the iPhone 4 and 4s models are the same size so all cases and screen protectors will fit the same.
The screen on the iPhone 4S is made of Gorilla glass.
There is really not a big difference between the iPhone 5s and the iPhone 4s. The only thing different between the phones would be the screen size.
The iPhone 4S has the exact screen as the iPhone 4. (3-5 inch, 960 by 640 pixel "Retina Display")
the 4 and the 4s are.
try the settings
No the iphone 4s screen is slightly bigger in terms of dimensions, also the cut outs are different.
You can not change the touch screen sensitivity on the iPhone.
they are actually the same size!
The iPhone 5 has the serie like the iPhone 4S, but the iPhone 5 has a way bigger screen, and cheeper app prices. So i think the iPhone 5 is better
Yes, they have almost exactly the same dimensions, but the 4S is a bit heavier.
There are a lot of sites that sell iphone 4S covers, in my opinion www.ebay.com. Iphone 4 and the iphone 4s are both same size, so you could get an Iphone 4 case too.