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iFlight RC Europe

Defender20 3S O3 HD #Pre-Order

Defender20 3S O3 HD #Pre-Order

1 total reviews

Regular price €537,40
Regular price Sale price €537,40
Sale Sold out
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Ships from the official iFlight RC Warehouse in Austria

No additional import fees for EU member states; English & German Support; 30 day Warranty*; Local Repair Service.

Pre-Order Promotion Activity Time: August 18-August 31

About the promotions: Within the specified time, if you buy Defender16/20 BNF, it will be equipped with one more 900mAh battery.

Customer Reviews

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Product Information


☑ Remarkably Lightweight And Portable
The palm-sized, compact Defender 20 is just as portable as it can be. The whole frame is injection molded for durability and lightweight, equipped with a naked DJI O3 air unit (Supplied by DJI). It's not only regulation-friendly, but also the safest in its series, allowing you to fly anywhere and whenever.

☑ One-button Functional Power Switch
Better operation through one physical button, not only just power on and off but also inbuilt programmable RGB light colors and modes to visually display the battery power. We’ve added a protective circuit to extend the lifespan of the battery connector and prevent rapid voltage or current spikes which can protect your electronics from damage.

☑ Innovative Quick-Release Battery with Type-C Charger
The Defender 20 comes with a stock 3S 900mAh providing up to 7min flight time. Crash protected battery shell and innovative quick-release structure for easy replacement. Upgraded plug and play Type-C charger for user-friendly fast charging, get 80% charge in just 18 minutes. The battery has an inbuilt auto-discharge module, it will discharge itself when not in use, making it safe and worry-free.

☑ Extremely Convenient User Experience
No fear of dust, take off boldly. By using dustproof port plugs to isolate the interface from the outside, ensure function properly. Extend the life of the interface.

The drone can be disassembled with only 6 screws, making it much more convenient for maintenance and repair.

Full plug and play high performance AIO, 30% increase in redundancy to cope with extreme operations. Integrated beeper for quick retrieval of accidental loss.

All ports and buttons are easy to access.
Countless easy-to-use features let you get started right away.

1) Turtle Mode pre-setup.
2) No soldering is required for the whole drone, motors, and propellers adopting the plug-in mounting method.
3) A dedicated VTX mount bracket with a central grille opening, together with the air duct design in the drone, can dissipate heat when flying.
4) USER1 preset as video transmitter power supply switch, used to manually turn off the VTX when idle to safe power and prevent overheating.
5) Customized vibration damped O3 camera mount to keep your raw footage as smooth as possible, as well as ensure good Gyro Data for the in-built or in-post camera stabilization, jello free.


iFlight Defender series features a better flying experience and performance with the next upcoming innovative step. Now is the time to take a step forward, let's meet the Defender 20. With the integrated All-In-One design and extremely convenient user experience, the new Defender has created a new standard of FPV drones. Upgraded quick-release battery and charging adapter to support Type C fast charging and battery storage mode, making everything as easy as it can be. One-button power switch with inbuilt programmable RGB light, yes we can be stylish and functional.

Product Name: Defender 20 O3 3S HD
Flight Electronics: Defender 16/20 F411 AIO
Video Transmission: Naked DJI O3 Air Unit
Frame wheelbase: 92mm
Motor: Defender20 1204 motors
Prop: Defender20 2020-3 props
Takeoff Weight incl. 900mAh battery: 178g
Dimensions (L×W×H):135x136x52mm
Max Speed: 75Km/H (Manual Mode)
Maximum Takeoff Altitude: 2000 m
Max Hover Time: Approx. 7.5 mins(with 3S 900mAh battery)
Max Wind Speed Resistance: Level 3

Operating Temperature Range: -10° to 40° C (14° to 104° F)

Antennas: Dual Antennas


Video Transmission

Product Name: Naked DJI O3 Air Unit
Communication Bandwidth: Max 40 MHz
FOV (single screen): 155°
Communication Frequency: 2.400-2.4835 GHz (RX only);5.725-5.850 GHz(RX and TX)
End-to-End Latency
With DJI FPV Goggles V2:
810p/120fps Video Transmission Quality: The latency is lower than 28 ms.
810p/60fps Video Transmission Quality: The latency is lower than 40 ms.
With DJI Goggles 2:
1080p/100fps Video Transmission Quality: The latency is as low as 30 ms.
1080p/60fps Video Transmission Quality: The latency is as low as 40 ms.
Max Video Transmission Bitrate: 50 Mbps
Max Video Transmission Range:10 km (FCC), 2 km (CE), 6 km (SRRC)
Operating Temperature Range: -10º to 40º C (14° to 104° F)
Power Input: 7.4-26.4 V
Audio Transmission: N/A

Packing List

1 x Defender 20 O3 HD BNF
1 x Defender 20 3S 900mAh Battery
1 x Charging Adapter
4 x Defender 2020-3 Props (pairs)
1 x Propeller Removal Tool


All iFlight BNFs are tested before shipment to guarantee highest quality.

If you still encounter a problem after receiving your shipment, please immediately contact our iFlight customer support at