I have the
smart controller on my
Mavic 2, had the regular controller on my previous one. The
Smart Controller is nice...but it's lack of cellular is annoying in that you have to pre-load the maps you're going to use before you leave (you can connect the
SC to the internet in the field by using your phone as a hot spot, but as I said...annoying). The screen is brighter, but not that much. You do have to be comfortable with a rather kludged version of Android.
As I said....the
SC is nice, but I'm not sure how much better it is, and I'm not sure it's worth the significantly increased cost. Personally, I think the money might be better spent of a pair of
DJI Goggles RE.