The iPhone 6's screen is 4.7", which is the metric you quoted in the article ("will fit phones with up to 5.3" screens"). I think Gavin is looking at the physical dimension of the phone itself (the iPhone 6 is 5.44" on its longest side), which seems like a way more useful measurement of whether the phone would fit in…
The iPhone 6's screen is 4.7", which is the metric you quoted in the article ("will fit phones with up to 5.3"…