Like I've said in a couple other threads, I ordered a used Nexus 7 (2013) because you can pick them up for under $150 (cheaper than just buying a screen!), they are on the "officially supported list", they have a great screen and a good powerful processor, and don't have any crapware running in the background to cause conflicts. The 7" screen should be a good balance between being bigger than a phone but small enough that it doesn't cause arm fatigue with extensive use. If you are buying the tablet just to use with the drone, I'd recommend looking there.