iFlight Defender 25 4S HD FPV Drone RTF(G3) DJI O4 Air Unit Pro + DJI Goggles 3 + Commando 8 ELRS
iFlight Defender 25 4S HD FPV Drone RTF(G3) DJI O4 Air Unit Pro + DJI Goggles 3 + Commando 8 ELRS
iFlight
Regular price
$1,483.99 USD
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$1,483.99 USD
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Overview
The iFlight Defender 25 4S HD FPV drone (RTF(G3)) is a compact 2.5-inch cinewhoop-style quad with integrated prop guards, designed for portable FPV flying. It uses the DJI O4 Air Unit Pro for HD digital video and includes DJI Goggles 3 and the Commando 8 ELRS radio for a ready-to-fly package.
For product support or order assistance, contact support@rcdrone.top or visit https://rcdrone.top/.
Key Features
- Sub-249 g class takeoff weight options (201±5 g with 550 mAh; 230±5 g with 900 mAh)
- 2.5-inch propeller guards with durable injection molded frame concept
- DJI O4 Air Unit Pro digital HD system: 1080p/100fps live view and recording (H.265)
- Vibration-damped camera mount design for smoother footage and improved gyro data for stabilization workflows
- Quick-release battery system and charging adapter board (two versions; shipped randomly)
- Secured XT30 battery plug with anti-spark filter
- Mini camera mount support noted for Naked GoPro / Insta360 (camera not included)
- GNSS support listed: GPS + SBAS + Galileo + QZSS + Glonass
Specifications
Aircraft
| Product Name | Defender25 O4 4S HD |
| Flight Electronics | BLITZ D25 F7 AIO |
| Video Transmission | DJI O4 Air Unit Pro |
| Frame | 112±2 mm |
| Motor | Defender25 1404 |
| Prop | Defender25 2525 props (2.5 inch) |
| Weight of the Aircraft | 130±5 g |
| Maximum Takeoff Mass incl. 550 mAh battery | 201±5 g |
| Maximum Takeoff Mass incl. 900 mAh battery | 230±5 g |
| Dimensions (L×W×H) | 158x155x69 mm |
| Max Speed | 100 km/h (Manual Mode) |
| Maximum Takeoff Altitude | 3500 m |
| Max Hover Time | Approx. 6 min (with 550 mAh battery), 10 min (with 900 mAh battery) |
| Max Flight Distance | 2-3 km |
| Operating Temperature Range | -10° to 40° C (14° to 104° F) |
| Antennas | Dual Antennas |
| GNSS | GPS+SBAS+Galileo+QZSS+Glonass |
Video Transmission (DJI O4 Air Unit Pro)
| Product Name | DJI O4 Air Unit Pro |
| Image Sensor | 1/1.3-inch |
| Lens | FOV: 155° |
| ISO | 100-25600 |
| Video Resolution | 1080p/100fps H.265 |
| Video Format | MP4, Max Video Bitrate: 130 Mbps |
| Color Mode | Normal Mode / D-Log M |
| Stabilization | RockSteady 3.0+; Stabilization function off (When RockSteady is enabled, the shooting angle only supports standard.) |
| Live View Quality | 1080P@100fps |
| Operating Frequency | 5.170-5.250 GHz & 5.725-5.850 GHz |
| Transmitter Power (EIRP) | 5.1 GHz <23 dBm (CE) / 5.8 GHz <33 dBm (FCC) / <14 dBm (CE) / <30 dBm (SRRC) |
| Max Video Transmission Range | With DJI Goggles 3 / DJI Goggles N3: 15 km (FCC), 8 km (CE), 8 km (SRRC) |
| Communication Bandwidth | Max 60 MHz |
| Antenna | Dual antennas |
| Built-in Storage | 4 GB |
| Supported SD cards | microSD (up to 512 GB) |
| Operating Temperature | -10° to 40° C |
| Weight | Air Unit (camera module included): Approx. 32 g |
| Dimensions | Transmission Module: 33.5x33.5x13 mm (L×W×H) |
FPV Radio (Commando 8 ELRS Radio)
| Product Name | Commando 8 ELRS Radio |
| Weight | 310 g (±10 g) |
| Dimensions (L×W×H) | L 190 x W 150 x H 51 mm |
| Communication Frequency | 5.725-5.850 GHz |
| Transmission Power (EIRP) | 2.4 GHz: FCC: 27 dBm; CE: <14 dBm; SRRC: <19 dBm |
| Transmission Power (EIRP) | 900 MHz: FCC: 30 dBm; CE: <14 dBm; SRRC: <19 dBm |
| Operating Current/Volts | 0.6 A @ 7.6 V |
| Charging Time | 1 hour and 30 min |
| Operating Time | Approx. 8 hours |
| Operating Temperature Range | 0°C to 40°C (32°F to 104°F) |
| Charging Temperature Range | 5°C to 40°C (41°F to 104°F) |
FPV Goggles (DJI Goggles 3)
| Product Name | DJI Goggles 3 |
| Weight | Approx. 470 g (battery included) |
| Dimensions (L×W×H) | With antennas folded: 170x109x112 mm (L×W×H) |
| Dimensions (L×W×H) | With antennas unfolded: 205x109x112 mm (L×W×H) |
| Screen Size (single screen) | 0.49 inch |
| Resolution (single screen) | 1920x1080 |
| Refresh Rate | Up to 100 Hz |
| Interpupillary Distance Range | 56-72 mm |
| Diopter Adjustment Range | -6.0 D to +2.0 D |
| FOV (single screen) | 44° |
| Communication Frequency | 2.4000-2.4835 GHz; 5.150-5.250 GHz; 5.725-5.850 GHz |
| Transmission Power (EIRP) | 2.4 GHz: <33 dBm (FCC) <20 dBm (CE/SRRC/MIC) |
| Transmission Power (EIRP) | 5.1 GHz: <23 dBm (CE) |
| Transmission Power (EIRP) | 5.8 GHz: <33 dBm (FCC) <30 dBm (SRRC) <14 dBm (CE) |
| Max Video Transmission Bitrate | 60 Mbps |
| Operating Temperature Range | -10°C to 40°C (14°F to 104°F) |
| Battery Voltage | 5.6-8.4 V |
| Supported SD Cards | microSD (up to 512 GB) |
What’s Included
- 1 x Defender25 O4 HD BNF
- 1 x Commando 8 ELRS Radio
- 1 x DJI Goggles 3
- 1 x Defender25 550mAh Battery
- 1 x Type-C Charging Adapter
Note: Manufacturer-provided information contains a conflicting statement indicating the RTF kit does not include the battery; confirm the exact in-box contents before purchase if battery inclusion is critical.
Recommended Charger
Charger is not included and is sold separately. A Flight PD 100W Charger or PD 30W Charger (or other USB chargers supporting USB PD and QC fast charging protocols) is recommended to ensure charging speed.
Notes
- The package only contains the cable to connect to the Naked GoPro, and does not include the cable to connect to the GoPro Bones.
- GoPro is not included.
- Product is for recreational use and does not support autonomous flight.
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.
- Nov. 2, 2024: DJI Goggles 2 in RTF upgraded to DJI Goggles 3.
- June 5, 2025: HD version of BNF changed from DJI O3 version to DJI O4 version.
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