Can all versions (cellular) be used with the Mavic to use maps?

I would think so, Im  currently using the Mini 4 which is the largest of the Minis so youll be fine size wise. I cant see any other issues coming into play.

You can use phone and tablets up to the size of IPAD PRO connected thru the usb cable

I think the oldest compatible version is the Mini 2.

You can even use maps with the wifi-only versions (as I do) as long as it has an internet connection, such as through a mobile hotspot via a phone.