iFlight Defender 25 HD 4S Cinewhoop Drone BNF with DJI O3 Air Unit
iFlight Defender 25 HD 4S Cinewhoop Drone BNF with DJI O3 Air Unit

iFlight Defender 25 HD 4S Cinewhoop Drone BNF with DJI O3 Air Unit

14:29#NO RX For DJI RC

Regular price $779.99 Sale price$699.00 Save $80.99
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  • After 2 years with the very successful ProTek series, iFlight continues to strive for a better flying experience and performance with the next upcoming innovative step. Let’s meet the Defender25.


Ultralight & Free to Fly

At sub 249g weight, our Defender25 doesn't require registration in most countries. The compact and lightweight design also makes it easy to carry and store. It will be your best travel buddy to redefine your FPV adventure.

Small But Mighty

The built-in 2.5inch propeller guards were designed to fly bold. You’ll experience a complete new creative freedom to fly whenever and wherever. The durable injection molded frame does not only prevent damage to your motors or propellers, but also protects the environment of small flight errors.

4K Stabilized Video with 155°Ultra-Wide Angle

Equipped with the latest tech from DJI, the O3 Air Unit HD transmission system. The Defender25 supports 4K video and shoots up to 155°super-wide FOV footage for stunning visuals. In addition, D-Cinelike color mode provides more creative freedom for color grading, allowing you to edit and adjust your footage. (Source DJI)

We’ve also added a special vibration-damped 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.

Crash Protected Quick-Release Battery

New innovative quick-release battery and charging adapter to make everything as easy as it can be. The Defender25 comes with a stock 4S 550mAh. An Endurance 900mAh battery is optional.

Inbuilt high-performance Video and Receiver antennas

Optimized Landing Gear for Take-off in Complex Environment

Countless easy-to-use features let you get started right away: 

1) Turtle Mode pre-setup

2) Secured XT30 Battery Plug with Anti-Spark Filter

3) Motors with direction arrows

4) Props with positioning column for easy installation

5) All ports and buttons are easy to access

6) Mini camera mount (Naked GoPro, Insta360, etc.)


  • Product Name: Defender25 O3 4S HD

  • Flight Electronics: BLITZ D25 F7 AIO

  • Video Transmission: DJI O3 Air Unit

  • Frame: 112±2mm

  • Motor: Defender25 1404

  • Prop: Defender25 2525 props (2.5 inch)

  • Weight of the Aircraft: 180g

  • Takeoff Weight incl. 550mAh battery: ≤249g

  • Takeoff Weight incl. 900mAh battery: ≤280g

  • Dimensions (L×W×H):158x155x69mm

  • Max Ascent Speed: 6 m/s (Normal Mode, Sport Mode)

  • Max Descent Speed: 6 m/s (Normal Mode, Sport Mode)

  • Max Speed: 100Km/H (Manual Mode)

  • Maximum Takeoff Altitude: 200 m

  • Max Hover Time: Approx. 6 mins(with 550mAh battery), 10mins(with 900mAh battery)

  • Max Flight Distance: 2-3 km

  • Max Wind Speed Resistance: 80 Km/H (Level 5)

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

  • Transmission Power (EIRP): FCC: < 33 dBm / CE: < 14 dBm / SRRC: < 30 dBm

  • Antennas: Dual Antennas

  • GNSS: N/A

Video Transmission

  • Product Name: DJI O3 Air Unit

  • Weight: Approx.  36.4grams

  • Dimensions (L×W×H): L16.7 * W103.9 * H 81.3mm

  • Screen Size (single screen): 0.49-inch

  • Resolution (single screen): 1920×1080

  • Refresh Rate: Up to 100 Hz

  • Interpupillary Distance Range: 56-72 mm

  • Diopter Adjustment Range: -8.0 D to +2.0 D

  • FOV (single screen): 51°

  • Communication Frequency: 2.400-2.4835 GHz;5.725-5.850 GHz

  • Transmission Power (EIRP): 

  • 2.4 GHz: < 30 dBm (FCC), < 20 dBm (CE/SRRC/KC)

  • 5.8 GHz [4]: < 30 dBm (FCC), < 23 dBm (SRRC), < 14 dBm (CE/KC)

  • Max Video Transmission Bitrate : 50 Mbps

  • Operating Temperature Range: 0° to 40° C (32° to 104° F)

  • Power Input: 7-9 V (1.5 A)

Packing List

  • 1 x Defender25 O3 HD BNF

  • 1 x Defender25 550mAh Battery

  • 1 x Charging Adapter Board

  • 2 x Defender 2525 Props (pairs)

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Top quality as ever at good prices. They deliver fast.


Los Angeles, CA

Easy transaction! First time user, but would definitely buy again.''

Jake Wilson

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Los Angeles, CA

Items Exactly As Describes Very Quick to ship and Good Communication From Seller.

Los Angeles, CA

Great Services at Good Price Bought a Few Items and Have Never been disappointed.

Los Angeles, CA