I use an iPad Mini 4. I have it tethered to my iPhone so it can accept calls. I have cellular service on the iPad Mini 4 through ATT and have an unlimited data plan. These driver apps use a lot of data, and if you work even part-time you'll need it. The larger screen provides so much more surface area to see upcoming streets easier. Larger screen makes it easier to toggle and click on actionable links and buttons inside the Uber Driver app and Lyft Driver app. It is just a safer way to go all around. Plus unlimited data plan lets me watch YouTube during my breaks. Anybody else using a tablet?