I used Moto X, in the case of iPhone 5 I only tested, one of friend used it daily
If you wish to use an improved camera, it`s all right to buy Moto X, updated with 13MP camera
Initially, Moto X is sold with 16GB storage capacity, but you can improve it anytime
The Super Amoled display is satisfactory, probably not that realistic as Retina display, but you can watch a 3D movie in decent conditions