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iFlight Defender 25 4S HD - RTF(G3)

The iFlight Defender 25 4S HD - RTF(G3) is a ready-to-fly FPV package featuring the Defender25 O4 HD aircraft, Commando 8 ELRS Radio and DJI Goggles 3. Its guarded 2.5-inch propellers, injection-molded frame and vibration-damped camera mount combine compact construction with DJI O4 video transmission for recreational FPV flying.

iFlight
Maximum hover time
Approx. 6 min(with 550 mAh battery), 10 min(with 900 mAh battery)
Aircraft weight
170±5g
Video transmission
DJI O4 Air Unit Pro

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Product overview

The iFlight Defender 25 4S HD - RTF(G3) combines the Defender25 O4 HD BNF aircraft with a Commando 8 ELRS Radio, DJI Goggles 3 and a Type-C Charging Adapter. Designed for recreational FPV flying, it uses a durable injection-molded frame with built-in 2.5-inch propeller guards to help protect the motors and propellers. Its compact construction incorporates BLITZ D25 F7 AIO flight electronics, Defender25 1404 motors and Defender25 2525 propellers. The aircraft does not support autonomous flight.

The DJI O4 Air Unit Pro provides a 155° field of view and 1080P@100fps live viewing. A vibration-damped camera mount helps smooth footage and supports gyro data for camera stabilization. RockSteady 3.0+ supports only the standard shooting angle when enabled. The aircraft also features a quick-release battery system, a secured XT30 battery plug with an anti-spark filter, accessible ports and buttons, and a mini camera mount. A charger and GoPro are sold separately; the supplied camera cable connects to Naked GoPro, while a GoPro Bones cable is not included.

OEM & customization

Specifications

SpecificationValue & conditions
ProductIFlight Defender25 O4 4S HD
Flight electronicsBLITZ D25 F7 AIO
Video transmissionDJI O4 Air Unit Pro
Frame112±2mm
MotorDefender25 1404
PropellersDefender25 2525 props (2.5 inch)
Aircraft weight170±5g
Maximum takeoff mass240±5gIncluding 550mAh battery.
Maximum takeoff mass280±5gIncluding 900mAh battery.
Aircraft dimensions (L×W×H)158x155x69mm
Maximum speed100km/hManual Mode.
Maximum takeoff altitude3500m
Maximum hover timeApprox. 6 min(with 550mAh battery), 10min(with 900mAh battery)With 550mAh battery: Approx. 6 min; with 900mAh battery: 10min.
Maximum flight distance2-3 km
Aircraft operating temperature range-10° to 40° C (14° to 104° F)
Lens field of view155°DJI O4 Air Unit Pro.
ISO100-25600DJI O4 Air Unit Pro.
Video resolution1080p/100fps H.265DJI O4 Air Unit Pro.
Video format and maximum bitrateMP4; maximum video bitrate: 130MbpsDJI O4 Air Unit Pro.
StabilizationRockSteady 3.0+; stabilization function offDJI O4 Air Unit Pro; when RockSteady is enabled, the shooting angle only supports standard.
Live view quality1080P@100fpsDJI O4 Air Unit Pro.
Operating frequency5.170-5.250 GHz & 5.725-5.850 GHzDJI O4 Air Unit Pro.
Transmitter power (EIRP)5.1GHz: less than 23dBm (CE); 5.8GHz: less than 33dBm (FCC), less than 14dBm (CE), less than 30dBm (SRRC)DJI O4 Air Unit Pro; frequency and regional qualifications as indicated.
Maximum video transmission range15 km (FCC), 8 km (CE), 8 km (SRRC)DJI O4 Air Unit Pro with DJI Goggles 3/DJI Goggles N3; FCC, CE and SRRC configurations as indicated.
Communication bandwidthMax 60 MHzDJI O4 Air Unit Pro.
Built-in storage4GBDJI O4 Air Unit Pro.
Supported SD cardsMicroSD (up to 512GB)DJI O4 Air Unit Pro.
Air unit weightApprox. 32 gDJI O4 Air Unit Pro, camera module included.
Transmission module dimensions (L×W×H)33.5×33.5×13 mmDJI O4 Air Unit Pro transmission module.
Supplied aircraft, radio, goggles and charging adapter1 x Defender25 O4 HD BNF; 1 x Commando 8 ELRS Radio; 1 x DJI Goggles 3; 1 x Type-C Charging AdapterRTF(G3) package.