Flow39
Well-known member
The proximity of the subject to the camera. On the back, the subject of the picture normally far away, making it unnecessary to have it centered, and last time I checked you aren't taking long distance selfies.
I don't think the fromt camera being moved to the side makes much of a difference. Look at the HTC One (M7 & M8). They have their front cameras on the right side, and no one complains about those.