That's an interesting question, and I'd like an honest answer to that.
We've heard the same argument about phones, and my old Galaxy S5 with a user-replaceable battery was a whopping 0.5 mm thicker than an iPhone 13 mini. That's the width of a mechanical pencil lead. They're both water-resistant, too.
I said 0.5 millimeters. 0.5 inches is freaking huge, that's 1.25 cm. None of my smartphones have been that thick, let alone having that much of a difference.
We've heard the same argument about phones, and my old Galaxy S5 with a user-replaceable battery was a whopping 0.5 mm thicker than an iPhone 13 mini. That's the width of a mechanical pencil lead. They're both water-resistant, too.