I have a large music library that I don’t have much storage left for on my phone. There are of course other ways of solving this problem, but are there any good dedicated music players like iPods still around?
Ideally I’d like it to have Bluetooth functionality for wireless headphones, at least 512GB of storage, and an SD card slot. Possibly physical buttons as well.


Yeah. Your phone.
Some people are actively trying to pull out of using their phones for everything. A phone is a phone, its for communicating. If you have a smartphone, sure use it as a PDA. It isn’t for anything else and won’t offer the best experience without concessions, nowadays those concessions often being privacy.
My P10P XL has no micro SD slot, and no 3.5mm jack. Plus I don’t want to lug it around when I’m out walking etc.