The Moondrop MIAD 01 is one of the most distinctive Android devices of 2024 thus far. It has a 4.4mm headphone jack to go with the more conventional 3.5mm type. Furthermore, it seems it might be as appealing to teardown enthusiasts as well as audiophiles, and may, therefore, also be easier to repair than most modern smartphones.
The jack connector has a really long history, back to the telegraph. The simplicity, the dependability, the interoperability, the lack of it falling out, or needing magnets, or who knows means it will be very tough to replace. And it has evolved too, it used to be a ball end, they have switched sizes, added channels
https://en.m.wikipedia.org/wiki/Phone_connector_(audio)