Research Tool Bench

Drone Sub-250g Registration Threshold Comparator

Last updated 2026-08-25

"Under 250 grams, no FAA registration" is the version everyone repeats. The regulation's own words say something slightly stricter, and at least one brand sells an official accessory for its own lightest drone that quietly crosses the line. We fetched the regulation and five current drone product pages directly to see how each one actually states its weight — and what it leaves out.

The legal line is 249.48 g, not a round 250. 14 CFR § 48.15(b) exempts a drone from registration only if it "weighs 0.55 pounds or less on takeoff, including everything that is on board or otherwise attached to the aircraft." At the exact 453.59237 g/lb conversion, 0.55 lb is 249.4758 g — a few tenths of a gram under the "250 grams" shorthand almost every article, and every brand's own product page below, actually uses.
The same drone, two of its maker's own batteries, two different sides of the line. DJI's own Mini 3 page states "248 g" for the standard configuration — then states its own optional Intelligent Flight Battery Plus takes that same drone to "approximately 290 g." Nothing about the drone's model name or listing changes; only the battery you choose from DJI's own accessory list does.
Your own configuration

Five current models, unfiltered

This table doesn't depend on what you typed above — every figure here is straight from each brand's own current page.

BrandModelTheir own stated weightStates what it includes?Margin under 249.48 g
DJI Mini 4 Pro <249 g Intelligent Flight Battery, propellers, microSD card 0.48 g (at most — their own figure is a ceiling)
DJI Mini 3 248 g Intelligent Flight Battery, propellers, microSD card 1.48 g
Autel Robotics EVO Nano+ 249 g not stated on this page 0.48 g
Autel Robotics EVO Nano 249 g not stated on this page 0.48 g
Potensic ATOM 2 <249 g the original intelligent battery, propellers, and a MicroSD card (their own wording) 0.48 g (at most — their own figure is a ceiling)

DJI Mini 4 Pro: Its own optional "Intelligent Flight Battery Plus" pushes takeoff weight to "exceeds 249 g" on the same page — no exact figure stated, and a footnote says Plus isn’t sold in the EU.

DJI Mini 3: Its own page states the Intelligent Flight Battery Plus takes the identical drone to "approximately 290 g" — 42 g over its own 248 g standard figure.

What this does not do

Runs entirely in your browser. Nothing you type is sent anywhere. The e-bike motor power claim comparator found the same shape in a different federal rule: a threshold written in one unit, and brands that disclose the number that clears it more readily than the one that doesn't. The jump starter engine coverage comparator found the same "the headline number and the number that actually matters aren't the same one" pattern.