It's not for gym, and I don't have a phone (and I don't want one). Yeah, Sony has launch a new codec, the LDAC (I have the headphone compatible with it, the Sony MDR 1ABT). But their players are too pricey for me.
I'm looking for something with a touch screen, Bluetooth, a SD Card slot and a good battery life (400$ max). I was thinking of the Cowon Z2 (since it's one of their model that come without files limit), but it's a 4 years old model now, and the battery life has been criticized. I like the AK JR, but then again, the battery life is an issue (less than 10 hours). The Plenue D would have been absolutely perfect for me if it has come with Bluetooth