Over the past several years we have seen smartphones regrettably lose features which were once standard, such as FM radios, IR blasters, status LEDs, physical buttons, micro SD card slots, and of course headphone jacks. An interesting counterpoint here regarding the latter is the newly released Moondrop MIAD 01 smartphone.
This is a companion discussion topic for the original entry at https://hackaday.com/2024/05/09/the-moondrop-miad-01-a-smartphone-with-balanced-audio-output/