Here’s one way of looking at the iPhone 7. On the surface, it looks pretty much the same as the iPhone 6 and 6s. There’s the same screen size – at 4.7 inches and 5.5 inches for the Plus model – the same rounded edges, and the same button layout.
It’s the first time Apple has kept the same basic design for three years running for the first time since the iPhone was launched almost a decade ago. If you’re upgrading from the 6 or 6s, a lot of people won’t notice that you’ve bought a new phone at all.