Quick Answer
The Flywoo Firefly 18 Nano Baby V3 is a 33 g 1S toothpick FPV quad with an open-prop dead-cat frame, ROBO 1002 motors on 45 mm HQ bi-blade props, and a 2.6 g GOKU F405 5-in-1 AIO running ELRS 2.4 GHz. It ships in Analog, DJI O4, and Walksnail variants. We stock all the motor and video options, and the Firefly 18 is the one we reach for when a 75 mm whoop is too tame but a 5-inch is too much hassle.
What the Firefly 18 Actually Is
Most micro FPV drones are tiny whoops: ducted props, enclosed frame, built for bouncing off furniture. The Firefly 18 Nano Baby V3 Analog ELRS is the opposite. It is a toothpick: open props on a dead-cat frame that keeps prop tips out of your camera view. No ducts means less drag, more efficiency, and a flight feel closer to a full-size quad than a whoop.
At 33 g ready to fly (we weighed it), it is lighter than most car keys. The 1S architecture keeps things simple: one cell, no balance lead, charge in minutes. The Explorer 1S 450 mAh HV packs give 4 to 5 minutes of cruising; step up to 750 mAh and you stretch to 6 minutes. In flight, the Firefly 18 is more cruiser than racer: smooth, quiet, and efficient rather than punchy.
Firefly 18 vs Firefly 16: Does Motor Size Matter?
The Nano Baby V3 platform ships in two motor sizes. The Firefly 16 uses ROBO 1002 motors wound to 23,500 KV on 40 mm props: more punch, more current draw, less flight time. The Firefly 18 uses the same 1002 stator but a lower KV wind on larger 45 mm props: less punch, better efficiency, and longer flight times. The difference matters most when you add HD video weight. The moment you bolt on DJI O4 or a Walksnail Lite board, pick the Firefly 18. The Firefly 16 O4 variant exists and flies, but the 18 carries the extra grams without sagging.
Analog, O4, or Walksnail: Which Variant?
Three video paths, one frame. The Analog ELRS build at 33 g is the lightest and cheapest entry point and pairs with budget goggles like the EV800D. If you already own DJI Goggles N3, the O4 variants output 4K 60 fps and are the reason this platform exists. For most beginners we would start analog and upgrade later; the frame and FC are the same, so only the VTX changes. Our pick for a first micro quad flown outdoors: the Firefly 18 Analog at under £110. Skip the prop guards unless you are flying indoors with kids; they add 7 g and kill the efficiency that makes this platform worth owning.
Firefly 18 vs BetaFPV Air75 II: Toothpick or Whoop?
This is the question we answer most. The BetaFPV Air75 II is a 75 mm ducted whoop at a similar weight and price. The trade-off is simple: whoops are safer indoors and around people because the ducts contain the props. Toothpicks fly more efficiently outdoors, handle wind better, and feel closer to a full-size quad. If your first flights are in a living room, get the Air75 II and read our Air75 II setup guide. If you are flying a garden, a park, or a warehouse, the Firefly 18 is the better tool.
What Else You Need to Fly
The Firefly 18 ships BNF. You need four things: a radio with ELRS 2.4 GHz (the RadioMaster Pocket is our go-to for 1S micros), FPV goggles, 1S HV batteries with an A30 plug, and a charger. Browse our complete drones collection for other ready-to-fly options. The drone itself is under £110; add budget analog goggles and batteries and you are airborne without breaking the bank. At 33 g it falls in the CAA A1 sub-250 g category: just an Operator ID. See our UK drone law guide for details.
FAQ
Q: Is the Firefly 18 good for freestyle?
It can flip and roll, but the limited camera angle and low KV make it a cruiser, not a bando basher. For aggressive freestyle, look at a 5-inch or a higher-KV whoop.
Q: Can I fly the Firefly 18 indoors?
Yes, but it is an open-prop design. It will mark furniture and fingers if you are careless. For pure indoor flying, a ducted whoop like the Air75 II is safer.
Q: What battery does the Firefly 18 use?
1S HV LiPo with an A30 plug. The Explorer 450 mAh and 750 mAh packs are the standard pairing. See our FPV battery guide for charging and storage basics.
Q: Do I need to solder anything?
No. The Firefly 18 ships BNF with ELRS 2.4 GHz onboard. Bind it to your radio, fit a battery, and fly. If you choose the bare O4 frame, you will need to install your own O4 air unit.