Hello, new fenix 5 plus owner here.
Is it normal to have a pretty poor music quality when listening to MP3 files from the watch?
The audio quality was really poor with my Optoma NuForce be sport3 headphones, which are usually great when paired with a phone. I didn't have any audio dropouts, but listening to 320kbps mp3 files from the watch sounded like listening to 128kpbs files or worse. All the low and high frequency sounds were distoted. My phone uses aptX codec, but I don't think it would make this much difference in sound quality. My current headphones should be compatible with SBC, aptX and AAC codecs
I'm about to buy new headphones soon to replace these rather old ones. Do the newer headphones use some better bluetooth audio codec with the watch if the Aptx is not supported? Do you know of some that will definitely work great or will the music quality be so poor always?