> device from a known manufacturer.

See, this is the problem here. You can buy a Walkman technically if you want to cough up $75 for a glorified feature phone: https://electronics.sony.com/audio/walkman-digital-recorders...

If you're dead-set on finding something that checks all your boxes, mainstream manufacturers won't cover it. This is one of those things where I'd search it on Amazon and sort by highest public reviews.