[Zpalmtree]

I'm using a fii0 x1, which has a sd card slot for up to 128gb of storage, and it has decent battery life and a very nice UI. Also has a dac for great quality sound, and supports lots of file types including flac. Bit more pricy than some cheap mp3 players, but it's very durable and will last a long time I imagine.

[lewisl9029]

Been using a FiiO X3 1st Gen here for quite a few years now, and it's still going strong. I got it before the X1 came out, and if I were to buy a new player I'd go with the X1 as well.