I have H2O Wireless (uses AT&T Network) with a SIM card and get unlimited data on my Nexus 5. I pay $28 (Twenty-Eight) a month with no contract for free long distance, unlimited text, etc. I get faster speeds for a certain amount of GBytes then the slower speeds later, but it is all free. I turn on my Nexus 5 hotspot and get internet on my Mac at 72.2 Mbps. H2O said it's okay to do that. I tried on my iPhone awhile back, but would have had to jailbreak it they said. My Nexus 5 is my full time everyday phone and I like it better especially for the cheap internet. I'm not going back to iPhone. My next computer might be FreeBSD, too. Sorry Apple.