Product Information
Firefly 25MINI 3S &
Firefly 20PRO 4S
One VTX. Two Flight Experiences.
Swap Your VTX in Seconds
Why build twice? We engineered the top plate to house the entire digital VTX and antenna system, keeping the powertrain bolted to the bottom. No re-soldering.
In under 3 minutes, transplant your Digital VTX to the other frame. Go from a 3S cinematic cruiser to a 4S bando basher effortlessly.
Distinct Power. Infinite Ways to Rip.
Factory pre-tuned PIDs. Locked-in feel right out of the box. Zero prop wash.
Firefly 25MINI
The ultimate cinematic cruiser. The wider wheelbase and efficient 3S powertrain shatter the micro drone flight time barrier. Enjoy buttery smooth lines and rock-solid wind resistance.
- Long-range freestyle up to 12 minutes
- Cinematic FPV & scenic dives
- Smooth indoor/outdoor cruising
Firefly 20PRO
Pure adrenaline. A tight, aggressive frame packing a brutal 4S punch. Hovers at just 22% throttle and screams up to 120km/h. Instant punch-outs for tight gaps and violent acrobatics.
- Bando bashing & high-burst racing
- High-speed tracking & chasing
- Aggressive freestyle maneuvers
Purpose-Built Details. Pure FPV.
Crash-Resistant Frame
To fly hard, you need to crash hard. Both models feature a rigid 2.5mm high-strength carbon bottom plate. The unibody front-arm structure dramatically increases bend resistance.
Snap-On Protection
Custom quick-release side panels protect the core electronics during side impacts and crashes. They also help hide wiring for a clean look and snap off by hand.
Enclosed Guard, Zero Wire Damage
Custom motor wire protection tubes reduce the risk of chopped motor wires from prop strikes or tearing during tumbles.
Put the Soldering Iron Away
Powered by the FLYWOO GOKU F405 20A SE AIO. Plug-and-play ports for GPS, RX, and VTX make builds and upgrades easier. The integrated lost-drone buzzer can be triggered from your radio.
High Speed. Jello-Free.
The custom anti-vibration gimbal mount filters out high-frequency frame vibrations. The lens is adjustable from 0° to 25°, making it suitable for flat cinematic cruising or pitched-forward racing.
Flywoo Firefly 20PRO 4S / 25MINI 3S O4 Pro Micro FPV Drone
The Flywoo Firefly 20PRO 4S and Firefly 25MINI 3S O4 Pro are compact micro FPV drones built for pilots who want DJI O4 Pro digital video in a small, powerful, and modular platform. This Firefly system gives you two different flight styles: the 25MINI 3S for smoother cinematic cruising and longer flight time, and the 20PRO 4S for faster, punchier freestyle flying.
The modular “One VTX, Two Frames” design lets you move the DJI O4 Pro digital VTX between compatible Firefly frames using only four screws. That makes it easier to switch between a long-endurance 3S micro FPV drone and a high-speed 4S freestyle micro drone without building two complete digital setups.
Which Version Should You Choose?
Choose the Firefly 25MINI 3S if you want longer flight time, smoother cruising, cinematic FPV footage, and a more stable micro drone feel. It is the better choice for scenic flying, travel footage, and pilots who want efficiency with DJI O4 Pro HD video.
Choose the Firefly 20PRO 4S if you want stronger punch, faster throttle response, aggressive freestyle, and high-speed outdoor flying. It is the better choice for tight gaps, bando-style flying, fast turns, and pilots who want a compact 4S micro FPV drone.
Zencopter stocks Flywoo FPV drones, parts, and accessories for U.S. pilots looking for fast domestic shipping, compatible FPV gear, and clear product support.
Product Highlights
Specifications
| Product Name | Firefly 25MINI 3S | Firefly 20PRO 4S |
|---|---|---|
| Video Transmission System | DJI O4 PRO | DJI O4 PRO |
| Weight | 113.5g | 113g |
| Flight Controller MCU | STM32F405 | STM32F405 |
| AIO | GOKU F405 SE 3-4S 20A AIO | GOKU F405 SE 3-4S 20A AIO |
| Gyroscope | ICM42688-P / MPU6000 | ICM42688-P / MPU6000 |
| Black Box | 8MB | 8MB |
| Motor | ROBO 1303 6000KV | ROBO 1303 6000KV |
| Props | 2520-3, 3 Blade, 1.5mm shaft | 2023-3, 3 Blade, 1.5mm shaft |
| Battery Connector | XT30 | XT30 |
| Voltage Input | 3S LiHV Recommended: 450mAh / 750mAh / 1000mAh | 4S LiHV Recommended: 550mAh / 750mAh |
| Flight Times |
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| Throttle |
|
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| Max Speed | 95km/h | 120km/h |
| Core Applicable Scenarios |
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In The Box
25MINI O4 PRO Version
- 1 x Firefly 25MINI O4 PRO Drone
- 8 x Propellers
- 1 x Hex Wrench
- 2 x Battery Anti-Slip Pads
- 1 x ND Filter
- 1 x 90° USB Type-C Data Cable
- 2 x 10*130mm Battery Straps
- Protective side panels
- Shock absorber parts
- Screw kit
25MINI Drone Kit Version
- 1 x Firefly 25MINI Drone Kit
- 8 x Propellers
- 1 x Hex Wrench
- 2 x Battery Anti-Slip Pads
- 1 x 90° USB Type-C Data Cable
- 2 x Battery Straps
- Protective side panels
- TPU Antenna Mount
- HDZero Connection Cable
- Walksnail Connection Cable
- O4/O4 PRO Connection Cable
- Screw kit
20PRO O4 PRO Version
- 1 x Firefly 20PRO O4 PRO Drone
- 8 x 2023-3 Propellers Purple
- 1 x Hex Wrench
- 2 x Battery Anti-Slip Pads
- 1 x ND Filter
- 1 x 90° USB Type-C Data Cable
- 2 x 10*130mm Battery Straps
- Plastic protective side panels
- Flywoo O3/O4 Shock Absorber Ball
- M2×6.6mm Shock Absorber Ball
- M2 Nylon Nuts and washers
- Complete screw kit
20PRO Drone Kit Version
- 1 x Firefly 20PRO Drone Kit
- 8 x 2023-3 Propellers
- 1 x Hex Wrench
- 2 x Battery Anti-Slip Pads
- 1 x 90° USB Type-C Data Cable
- 2 x 10*130mm Battery Straps
- Plastic protective side panels
- TPU Antenna Mount
- HDZero Connection Cable
- Walksnail Connection Cable
- O4/O4 PRO Connection Cable
- Complete screw kit
Frequently Asked Questions
Where can I download the product manual?
Do I need to tune the PID settings myself?
All PID parameters are factory-calibrated and tailored to each model’s power and weight, helping deliver precise, smooth handling right out of the box.
What’s the biggest difference between the Firefly 20PRO 4S and 25MINI 3S?
The 20PRO 4S is built for extreme outdoor racing, 120km/h+ speed, and 4S power bursts. The 25MINI 3S is tuned for long-endurance freestyle, up to 12 minutes, and cinematic cruising. Both support DJI O4 PRO VTX swap with 4 screws.
What’s the adjustable range of the gimbal? Does it eliminate the jelly effect?
The shock-absorbing gimbal pod has a 0°–25° adjustable angle. Its structure helps filter high-frequency vibration, delivering cleaner FPV feed and reducing jelly effect.
Does the drone come with a GPS module?
The standard package does not include GPS, but it has a dedicated plug-and-play GPS port. Flywoo recommends the FLYWOO GM10 MINI GPS V3 for RTH features.
Install Video
Can the Firefly 25MINI 3S use a 4S battery?
Yes, it can. Betaflight settings are required: PID Tuning → Rate Profile → Throttle Limit: SCALE 85%. PID Tuning → PID Profile → Motor Output Limit: 75%.
Can the Firefly 20PRO 4S use a 3S battery?
Yes, it can. However, the power will be reduced while the total flight time may increase.