A drone under 250g is still regulated in the UK. As of October 2026, you need a Flyer ID if it weighs 100g or more, and an Operator ID if it weighs 100g or more and has a camera. Its lighter weight does bring real advantages: it can be flown under the A1 rules, closer to uninvolved people than heavier aircraft, though never over crowds.
Before 2026 many owners of small drones assumed they were exempt. That is no longer the case for most camera models. This page gives general information from the CAA's guidance, not legal advice.
What you need for a sub-250g drone
| Weight and equipment | Flyer ID | Operator ID |
|---|---|---|
| 100g to under 250g, with a camera | Required | Required |
| 100g to under 250g, no camera | Required | Optional |
| Under 100g | Recommended | Optional |
The Flyer ID threshold was 250g before 1 January 2026. Almost every small consumer drone has a camera, so most owners need both IDs, with the Operator ID labelled on the aircraft. The full process is in UK drone rules: Flyer ID and Operator ID.
What lighter weight lets you do
Under the Drone and Model Aircraft Code (March 2026), aircraft under 250g, UK0 and UK1 (plus C0, and C1 until 31 December 2027) may fly closer than 50m to uninvolved people and over them, and may fly in residential, recreational, commercial and industrial areas that heavier aircraft must keep 150m away from. They must never fly over crowds.
Other limits still apply. The 120m (400ft) height limit, airport flight restriction zones, byelaws and privacy rules all stay in force. Read where you can fly a drone in the UK.
Added parts count. The Code notes that a night-flying light's weight counts towards the total, so a drone close to 250g can move into a heavier band when you fit accessories. Weigh your drone as you fly it.
Remote ID for lightweight drones
Remote ID will reach many small drones from 1 January 2028. The CAA says it applies to UK0 drones of 100g or more with a camera, and to legacy drones of 100g or more with a camera. Check Remote ID for UK drones before buying with long-term use in mind.
How the weight is counted
The thresholds in the CAA's guidance refer to the weight of the aircraft, and the practical advice is to weigh the drone ready to fly. Fitted accessories, including a night-flying light and anything else you attach, add to it. A model sold at 249g with a camera is under 250g, but a fitted accessory can push it over, which would change the IDs and distance rules that apply. If you are close to a threshold, check the CAA's guidance or ask the manufacturer for the take-off weight.
Weight also affects the hobby of flying itself. Lighter aircraft respond more to wind, so gusty conditions that a heavier drone shrugs off can leave a small one drifting. Check the forecast, and land early when conditions change.
Who a lightweight drone suits
A sub-250g drone suits people who want to carry a drone on walks, holidays and cycle rides without a large bag, and who accept that image quality and wind handling will depend on the model. It is also a reasonable choice for learning, since the closer-to-people A1 rules are available. It suits less well anyone who plans to film in strong wind regularly or who needs the best possible low-light quality.
Before you buy
- Check the weight in grams on the manufacturer's specification page, and whether that figure includes the battery.
- Check the class mark on the product, and whether the seller lists it.
- Ask whether Remote ID is built in or planned, because camera drones of 100g or more will need it from 2028.
- Confirm that spare batteries are sold for the model.
- Plan to register: Flyer ID for you, and Operator ID if it has a camera.
The trade-offs
Small airframes tend to share the same compromises, though individual models differ, so read the manufacturer's specification page for the drone you are considering.
- Flight time: small batteries usually mean shorter flights, so carrying spares is common.
- Wind: low weight makes a drone easier to push around, so strong or gusty days can limit it.
- Sensor size: small drones often use small sensors, which affects low-light image quality.
- Portability: this is the clear advantage. A small drone is easy to carry on a walk or a trip.
- Features: some lightweight models have obstacle sensing and GPS return-to-home, while others do not, so check each.
If image quality in dim light matters most, a heavier drone with a larger sensor may suit you better, with the extra rules that come with it. If portability and simpler placement matter most, a lightweight model is a logical choice. Best beginner drones in the UK covers the other points to compare, and how to look after drone batteries covers the care of small packs.
Frequently asked questions
Are sub-250g drones exempt from registration?
No. At 100g or more you need a Flyer ID, and with a camera you also need an Operator ID.
Can I fly a sub-250g drone over people?
The Code allows it for aircraft under 250g, UK0 and UK1, but never over crowds.
Will a small drone need Remote ID?
From 1 January 2028, UK0 and legacy drones of 100g or more with a camera are due to need it, according to the CAA.
What are the trade-offs of a lightweight drone?
Usually shorter flight time, less wind resistance and smaller sensors. Portability is the main gain.