Apple iPhone 5 vs iPhone 4S review
iPhone 5 Verdict
There was a huge leap in photo quality between the iPhone 4 and the 4s, but from the 4s to the iPhone 5 the changes are more subtle and incremental and some of them (such as the panorama mode) can be added to earlier models by downloading iOS 6.
Otherwise the only gains are operational speed and better performance in very low light. Video users will gain more from upgrading, particularly in being able to make use of a screen that's now the right aspect ratio for full screen viewing.