I have owned every iphone version from the 2 all the way to the 4. I decided recently time for a change and I am loving the Atrix. No doubt the iphone 4 is a nice phone but I really wanted to make the jump to Android. My expectations for build quality are quite high having owned so many iphones especially the iphone 4. Atrix has not disappointed. The build quality of the phone is great. Even though I believe it may be about the same weight as iphone 4. The form factor makes it feel much lighter at least to me. I do not miss the iphone retina screen at all. In fact I prefer the screen on the Atrix. I am finding android is so much better than iOS. Could go on and on as the Atrix has so many features but bottom line I am glad I made the switch.