Is it better to get the Ipad Mini 4 with both WIFI & cellular or just WIFI? For the Mavic Pro.

Hi Billy, you can choose iPad mini 4 or iPad mini 4 Wi-Fi + Cellular, both of those are on the compatible mobile device list for the Mavic pro, which you can check from the website: https://www.dji.com/mavic/info#downloads, thanks!

The cellular will give you the added option of the aircraft being able to follow you

https://forum.dji.com/thread-142140-1-1.html

Here's what you'll gain with the cellular model of an Apple mobile device:

• You'll be able to use the Follow Me flight mode. Without GPS on your mobile device, you could still use the ActiveTrack flight mode to make your Mavic visually follow you. The difference is that Follow Me follows the location reported by the GPS receiver in the mobile device (see this video for more details).
  

• With GPS on your mobile device, you'll also be able to manually reset the home point to your current location after taking off. This could be useful in a case where you move away from the takeoff location or are flying from a moving vehicle (e.g. a boat).
  

• If you activate the cellular service on an Apple device, you'll also be able to use features that require being connected to the Internet. For example, you could download the DJI GO maps in real-time instead of having to cache them ahead of time before you head out to fly.
  

If you don't need to use any of the above features, then a Wi-Fi only mobile device would be an okay option for you. When it comes to Apple mobile devices, the Wi-Fi only models are less expensive.

You can also connect the Mini Wifi only to your mobile phone hot spot to use real time maps.

With celular you will be able to cache maps where ther is no wifi connection.... remember to put it in airplane mode before taking off and after you cached maps to avoid interference during flight.