Things weren’t quite as easy on the dense brush trail. When I changed the camera angle, the drone would occasionally pick a bad route, get hemmed in by branches and stop. A few times the propellers knicked leaves or branches, throwing the drone off keel. It never crashed or took any damage, but I replaced the propellers out of an abundance of caution.

That experience taught me that the Air 3S’s sensors can miss small obstacles, so it’s wise to stay away from those situations and use propeller guards if you can’t avoid them. You also need to make sure the drone has enough room to maneuver when using ActiveTrack 360 to change camera angles.

Steve Dent for Engadget