Having sat in on meetings where mechanical engineers reported the results of working massive overtime to shave each fraction of a millimeter off, I am confident

Having sat in on meetings where mechanical engineers reported the results of working massive overtime to shave each fraction of a millimeter off, I am confident in saying that the relationship tends to resemble an abusive one. (FWIW this was wearables, not phones) To be fair, as a customer, thin and light weight is nice, and given the choice between a phone with a replaceable battery and one that is more mainstream, well, my One Plus doesn't have a replaceable battery. Motorola tried making cashing in on pent up demand for Android phones with batteries that could be swapped out. It didn't work out too well for them.