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.
You don’t need to; the Brussels effect has you covered.
It’s cheaper to sell phones with replaceable batteries worldwide than to design the same phone twice for different markets. So most major manufacturers will probably just sell EU-friendly phones everywhere just like when the EU required USB charging ports.
Apple literally a victim of it’s own success.