Just when it seemed clear exactly what was coming when for the new iPhones, a new part of the puzzle has become apparent.

The most widely discussed rumor is that Apple might be introducing its slimmest phone ever, the iPhone Air, which may replace the iPhone Plus. This rumored device is said to have a profile thickness of 5.5 mm, making it about 0.08 inch thinner than current iPhones. It’ll also feature a 6.6-inch screen.