Re: I have a better idea
"You would struggle to find a single consumer who wouldn't happily accept a phone a whopping 1 mm thicker and a few grams heavier if it meant they only needed to charge it every two or three days"
Sony already do this, but not very successfully. The difference between the iPhone 8 and the Xperia XZ1 Compact isn't that huge, though obviously the iPhone is somewhat faster and runs iOS.