Apart from the extra 1/2 inch screen, no lol but then under the skin there are differences, i.e. A6 processor for the 5 vs A5 of that in the 4S.

Going back and people said the same with the 3G and the S, both identical visually, but delve deeper inside and the two are seperated, the latter has double the memory to start with, hence why it can run the latest version of IOS and multitask etc.

Keeping it topical think of an L6 and L8 for example, lol.

The same applies with the 4 and the S, both the same externally, yet the 4S has a better processor, 8MP camera, 802.11 G/N network capabilities, Siri, I could continue but you get the picture.

People say that there isn't alot of difference to the predecessor which is quiet true, but then thats true of any other new phones on the market.

It's like Windows 7 and Windows 8 lol, but then theres plenty of suckers who will be upgrading to Windows 8 because it looks different, when really there are only subtle differences.

Martin