Earlier quoted context omitted.
you also get GPS, which works regardless of cell connectivity, handy for Maps :)
Does Apple Maps support offline map downloads? If so this is a great selling point.
Apple Maps, will cache a little bit, like if you are connected, get directions and start a route, then lose connection, it will still work, but if you get turned around(off course), then it may or may not work, depending on if it's cached locally(in my experience it usually won't).
Maps.me is my goto offline map solution, it uses Open Street Maps.