Five year update pledges don't mean much without removable batteries
androidauthority.com
androidauthority.com
With removable batteries also generally comes reduced battery size. Pick one.
I also don’t think it’s a binary choice. Given the amount of phones currently in production, some of them could have removable batteries.
My 'thin' phone came with a case anyway.
I'm not even particularly convinced of the tradeoff. My old windows phone the back just pried off so no extra thickness there. You have potential savings from being able to move the sim and SD cards.
Further if it was that 'hyper' optimised, why could I get a phone in the 00s where the battery lasted a week, and today I'm lucky to get a day. There are obviously other considerations than battery life, and I would contend battery life is far down the list.
I have played with the idea of 3d-printing a replacement back for some other phone, just to be able to use standard batteries (18650 or whatever) in it.
I'm typically not going to lug around an extra laptop battery, but I want to be able to replace it when it starts to fail.
I would rather my phone was like that too, but my current one does not have that "feature".