iFlight Defender 25 O3 HD BNF

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 Defender 25.

Highlights

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 2.5-inch propeller guards were designed to fly boldly. You’ll experience a completely new creative freedom to fly whenever and wherever. The durable injection-molded frame not only prevents damage to your motors or propellers but also protects the environment from 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. Additionally, 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 battery. An Endurance 900mAh battery is optional.

Inbuilt High-Performance Video and Receiver Antennas

Optimized Landing Gear for Take-off in Complex Environments

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

1. Secured XT30 Battery Plug with Anti-Spark Filter.
2. Motors with direction arrows.
3. Props with positioning column for easy installation.
4. All ports and buttons are easy to access.
5. Mini camera mount (Naked GoPro, Insta360, etc.).

Changelog

• May 31, 2023: Defender 25 4S HD BNF comes with GPS installed by default.
• October 24, 2023: The Charging Adapter Board has two versions, shipped randomly.

Note: The package only contains the cable to connect to the Naked GoPro, and does not include the cable to connect to the GoPro Bones.

Specifications

• 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
• Maximum Takeoff Mass incl. 550mAh battery: ≤249g
• Maximum Takeoff Mass 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: 3000m (with 550mAh battery), 3500m (with 900mAh battery)
• Max Hover Time: Approx. 6 mins (with 550mAh battery), 10 mins (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: GPS+SBAS+Galileo+QZSS+Glonass

Video Transmission

• Product Name: DJI O3 Air Unit
• Weight: Approx. 36.4 grams (headband included)
• Communication Bandwidth: Max 40 MHz
• FOV (single screen): 155°
• Communication Frequency: 2.400-2.4835 GHz; 5.725-5.850 GHz
• 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

Recommended Charger

Charger not included in combos and sold separately.

To ensure charging speed, it is recommended to use the Flight PD 100W Charger or PD 30W Charger, or other USB chargers that support USB PD and QC fast charging protocols.

Packing List

• 1 x Defender25 O3 HD BNF
• 1 x Defender25 550mAh Battery
• 1 x Type-C Charge Adapter
• 2 x Defender 2525 Props (pairs)