The 4 inch iPhone is an abomination. It was a haphazard response to the large screen phenomenon while attempting to maintain one-handed dexterity. The answer was not to split the baby, but to create an entirely new class of device as Apple finally did with iPhone 6. While these newer phones are indeed solid choices, they in no way diminish the viability of the original 3.5 inch model. If Apple were to truly think different, this is the path they would choose.