What's the difference between an iPhone 4, iPhone 4s, and iPhone 5?

What's the difference between an iPhone 4, iPhone 4s, and iPhone 5?

The screen is slightly larger, Great innovation by Apple!

You could check GSMArena.com to compare the 3.

http://www.gsmarena.com/...hone2=4910
this page compares the 4 to 5.

But in general the phones have gotten faster, slimmer, & better equipped.

4~no siri
4s~siri
5~bigger screen