iPhone 4s: Height: 76.65mm Width: 51.60mm Display area: 3.6 inches Thickness: 0.9mm
iPhone 5: Height: 90.25mm Width: 51.60mm Display area: 4.065 inches Thickness: 1.00mm
iPhone 5 is better compared with iPhone 4s
3. The camera hole of iPhone 5 glass lens moves from the left side to the right middle above the receiver.
4. The light sensor hole moves from the top to the left side of receiver. Also, it becomes very small.
5. Home button
The diameter of home button hole of iPhone 5 glass lens is narrowed 0.3mm. That is to say the iPhone 5 home button will become smaller and the iPhone 4S home button will not fit for iPhone
6. Anti scratch ability:
The anti-scratch ability of iPhone 5 is better than iPhone 4s