True, if Apple wanted to they could have changed the design. But, if we're going to talk about what Apple could have done with the design, I'm sure that we have

True, if Apple wanted to they could have changed the design. But, if we're going to talk about what Apple could have done with the design, I'm sure that we have many more grievances than the headphone jack. Thicker body for more battery is the classic complaint that comes to mind. That being said, the iPhone 6/6s are the same size as the 7 from what I can see. The only obvious changes are waterproofing, headphone jack, taptic engine, and lack of physical home button.