Why would you want worse battery life just for shaving 2,31 mm and 12g. That's a ridiculous compromise, especially since weight is the more important factor and it's going to be barely noticeable in this case.

Battery life isn't just about runtime it's also about the number of cyles you will be able to do before you have to deal with the bullshit that is iPhone battery replacement.

There is objectively no good reason to prefer that compromise appart from the "feeling" factor, which is not a reason by definition.

If get the battery compromise in the mini iPhones (even thought they could have just made them a bit thicker without changing much of the feel/functionality) because that's part of the deal with the form factor but going with a very large display only to make the phone thinner is beyond stupid.

And it's more expensive when most of the specs sheet is equal or worse.