Manufacturers don’t make displays under 6 inches available for purchase, with special cases (such as the iPhone Mini) being made under exclusive contracts. The best lead they have so far is to try to use displays designed for the front part of a foldable phone, but they’re yet to strike an agreement.
TIL that display manufacturers are also part of the reason why we aren’t getting small phones and why it’s probably even harder for manufacturers like Fairphone to make them.
Not just that, but they get to charge $100 dollars more for the $5 of ROM while avoiding the support costs and reputation hit of idiots who force the SD card in the wrong way or blaming the device when the SD card is inevitably sheered in half after being forgotten about during a battery replacement.
Unfortunately every market incentive just aligns against expandable storage in phones.