Hate to send you to the other brands site but there is more info there.
I have not tested the Solo in red areas but I know locks you down/out based on GPS location.
Which one locks you out based on GPS location? The Solo does not, nor does it give any warnings. The only warnings I see are from when you set the "altitude limit" to "no limit" there is a standard warning. Nothing based on the location for GPS's though. With all of the apps 3DR and (I assume) DJI made for use with their drones you'd think they could build in this type of stuff (no-fly zones and other users' favorites)
I got an app on Android called "Model Airfields" and on iPhone there is one as well, I can't remember the name though