Can I use Google Play without a SIM card? I listen to audiobooks and don't want to drain the battery on my personal phone so was going to buy a mini android and download Libby onto it and use that for listening to audiobooks but I don't want to buy one if that won't work. I have searched for my answer and can't really find anything. Once I have Libby on it I can just use my wifi so won't ever have to use a sim card. I only want Libby (free books through library) not audible. Thanks for any help!