I got the WIFI only and tether off of my phone. T-Mobile gives you 5 GB free, I'm not sure about other carriers. I would recommend getting at least 64 GB of storage. Capacity will be limited after you install the company required apps (Jepp, Comply, etc.) and you will want to have some extra entertainment available because nearly all of our hotels are in boring locations near the airport, which is a high priority to be rectified in the next contract.