Last week, I put together a piece about the rising size of iPhone screens. It was, in summary, a graph showing them getting bigger. Surprise! But as the week progressed, I thought about it a bit more and had another thought: what about the evolution of iPhone screen-to-body ratios? If you don’t know what this is — although the name should give you a very big clue — screen-to-body ratio is a number that shows (roughly) what percentage of the front of a phone is screen, compared to, you know, not screen.