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.
It’s aimed strictly at audiophiles. The extra jack is a 4.4mm jack that’s more common in things like DACs.
An example:
https://nobleaudio.com/products/dac-amp-with-4-4mm-pentaconn-output
Pair a phone like this with a pair of Sennheiser’s and a bunch of FLAC files and you might have a really good time.
Oh so the jacks are different? Ok then. I thought the other sizes are dead or only used in niche $100k+ equipment
No I’ve got a $70 usb/bluetooth DAC w 3.5 and 2.5 jacks
but not 4.4mm which is apparently what the specialty jack on this phone is