Quadcopter iFlight Defender 25 4S HD - RTF(G3)

iFlight Defender 25 O3 4S HD – Updated Review and News

Key features:

Lightweight and portable: Weighs less than 249g, allowing it to avoid registration in many countries. Compact design for easy transport and storage.

Impact protection: Integrated 2.5-inch propeller guards for safe flight even in case of minor errors.

4K video stabilization: Supports 4K video with a 155° field of view, plus support for D-Cinelike for color grading.

Innovative battery: Quick-swap 4S 550mAh or 900mAh battery for up to 10 minutes of flight time (with 900mAh battery).

Ease of use: No soldering required; everything connects simply; special markings for motors and propellers for easy installation.

Update:

May 31, 2023: Defender 25 4S HD BNF now comes with GPS.

October 24, 2023: Charging adapter board has two versions shipped randomly.

November 2, 2024: DJI Goggles 2 in RTF kits updated to DJI Goggles 3.

Specifications:

Model: Defender 25 O3 4S HD

Electronics: BLITZ D25 F7 AIO

Video transmission: DJI O3 Air Unit

Frame size: 112±2 mm

Motors: Defender 25 1404

Propellers: Defender 25 2525 (2.5 inches)

Weight: 180 g

Takeoff weight: ≤249 g (with 550mAh battery), ≤280 g (with 900mAh battery)

Max. speed: 100 km/h (manual mode)

Hovering time: up to 10 minutes (with 900mAh battery)

Max. altitude: 3000 m (with 550mAh battery), 3500 m (with 900mAh battery)

Temperature range: -10° to 40°C

Video transmission:

Frequency range: 2.4–2.4835 GHz (RX); 5.725-5.850 GHz (RX and TX)

Max. range: 10 km (FCC), 2 km (CE), 6 km (SRRC)

Max. bitrate: 50 Mbps

FPV Radio:

Model: Commando 8 ELRS

Charging time: 1.5 hours

Operating time: approximately 8 hours

FPV Goggles:

Model: DJI Goggles 3

Screen size (one eye): 0.49 inch

Resolution: 1920×1080

Refresh rate: up to 100 Hz

Max. bitrate: 60 Mbps

Max. transmission range: 10 km (FCC)

In the box:

1 x Defender 25 O3 HD BNF

1 x Commando 8 ELRS Radio

1 x DJI Goggles 3

1 x Defender 25 550mAh Battery

1 x Type-C charging adapter

2 x Defender 2525 Propellers (pairs)