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.
I don’t think the battery argument is convincing enough to me unfortunately, since it’s more likely that the recent increase in battery capacity is due to battery chemistry improvements rather than increased physical size.
I mean, I have two similar sized phones from different eras. One had 3000mAh, another had 5000mAh. They both include a headphone jack.