I would love a Fairphone, but no headphone jack is a nonstarter for me. Still blows me away that a company saying they are focused on longevity would get rid of a universal audio interface that we've had for decades. In the article they claim it's to fit other features in, but frankly that's not a believable claim. Other manufacturers manage to get a headphone jack in just fine, without any noticeable downside.
I absolutely concour about the need of a headphone jack - I do not buy anything without it. So,
> to fit other features in
what exactly, one would ask. If there are tradeoffs, if would be nice if the customers can decide what to have, in a modular product.
Serial is a universal data interface that we've had for decades. Don't need RS232 on my phone though.
The headphone jack is inside USB-C connector. You can use USB-C-to-3.5mm passive (!) cable to connect your 3.5mm headphones, or you can buy 3.5mm headphones with USB-C audio connection.
There's no additional DAC involved, the analog audio is already on a USB-C pins.