You don't need maps anyway but some people like them.
GPS just gives some numbers that indicate your drone's latitude and longitude.I guess I’m confused as to what maps are. The gps gives me location on a map like my phone does when I use it to navigate to a location. It shows me where I am and where my drone is so I don’t understand what I would be downloading vs what I’m getting from the gps.
You do not get a map from crystal sky just the same as your car GPS doesn't supply the map both of them use downloaded maps from the Internet if you are in a place you have never been before and do not have a Internet connection neither can supply a map as they do not have them available in their data some of the older car gps systems built in maps but if for any reason things were changed ie a new road was built in neither would be able to display it unless they had a Internet connection, a GPS receiver only knows your position in GPS coordinates which are only two numbers and zero maps but if you have a Internet connection they can download the relevant map for where you are (it's not the GPS in your drone that downloads the map but whatever device you are using with the remote controller)Understood but what I don’t understand is what the difference is between a downloaded map and what I get on the crystal sky with its gps. I get a 2D map with all of the area roads just like a gps in a vehicle. So what’s the point of downloading a map?