DJI’s Mavic Mini no FAA registration required....
According to the Mavic Mini the drone weighs 249 grams. Drones 250 grams or heavier require FAA registration a max flight time of 30 minutes, and it's listed for about $495. The Mavic Mini only has a 2.7K camera. That could be an attempt to stop the Mavic Mini from cutting into the sales of its existing drones too much.
Sidd