Do I need to register a sub-249g drone with the FAA?

For recreational use in the U.S., drones under 249 grams are exempt from FAA registration and Remote ID requirements, which is why models like the DJI Mini 4K, DJI Mini 5 Pro, and Ruko U11MINI are marketed at that weight. Commercial use (Part 107) still requires registration regardless of weight. Always confirm current rules on the FAA's official website before flying.