EDIT: Thank you to everyone who answered! Much appreciated.
I'm looking for the cheapest way to get an MP3 player that has bluetooth and allow me to use Android MP3 player apps and wifi to allow me to download from the Play Store.
If I buy a super cheap phone that is locked to a carrier, will it be fully functional minus the making/receiving calls/mobile data? Or will I need to activate it with a carrier for it to allow functionality for wifi etc?
Currently, I'm using an old Motorola Moto G (1st gen?) as my MP3 player and it's in airplane mode (to save on battery life) and has no SIM card in it. It works OK, but bluetooth drops out frequently.
I don't use mobile data either.
I guess the question is, how 'locked' is a 'locked' phone?
Its fine, I wanted the $19 A12 as a tablet.