I'm on a 5S. This might sound like melodramatic consumerist envy, but I've been struck over the last year by how many emotionally stirring pictures I've seen amateurs take with the iPhone 6. My phone can take a pretty sharp photo of a baby/puppy/landscape, but there's something about the 6 generation that almost triggers that sense of "presence" people bring up in regard to VR. I think you can see this pretty vividly in the jump from 5S to 6 in the author's self portrait - I can call the improvements incremental on a lot of levels, but somehow she's "there" looking me in the eyes on the 6.