Should you upgrade to an iPhone 4S?

Camera

iPhone 4: After years of sub-par camera action, the iPhone 4 finally upped the game with a 5MP camera that produced decent, usable shots and didn't shirk 720p vids. But with a 12MP snapper piggybacking on Nokia's N8, and a raft of 8MP snappers sitting in its shadow, the iPhone4 's fame as a lensman wasn't destined to last.

iPhone 4S: The sensor on the 4S has been bumped to 8MP and you can now shoot 1080p video. Access to the camera from the lock screen, Sense UI-style, is a welcome addition to save you precious seconds, as is a more responsive virtual shutter and better exposure. The proof will be in the picture, but the iPhone 4S's camera spec sheet augurs well for the newcomer.