I love the concept of this DAP... compact, respectable battery capacity, nice volume wheel, tube mode from 4.4mm PO, and no android bloat for pure music playback using local storage. I get the criticism for lack of streaming capability, but in all honesty, the market is saturated with DAPs containing wifi and bluetooth capability. This DAP in 2024 is refreshing to me... but I still prefer to listen to albums all the way through, so take that with a grain of salt. If people are still interested in the original Sony WM1A/Z (they definitely are!), then there is a market for the N3Ultra in 2024.
Speaking of Sony, one thing I've always loved about their proprietary music UI is the ability to sort music by "High-Res" so you can go right to albums that are encoded in high resolution bitrates and formats. Quite often I want to listen to a DSD album and it is great to easily find them in one place rather than having to do a workaround involving folder view or creating a "genre" for high resolution files using something like mp3tag which is a pain to manage/update.
The description in the OP states "The N3Ultra also features a new, closed pure audio system design for its UI, offering a clean and straightforward user interface".
@Andykong This UI would be even better if you would consider implementation of an additional music library category for high resolution files (while not as good, even the option to sort by bitrate or filetype would be helpful). It should be relatively easy to implement if you feel there is demand for it.
Anyway, I am excited to get my hands on the N3Ultra!