DJI O4 Air Unit

The DJI O4 Air Unit is DJI's standard digital HD FPV air unit, pairing a 1/2-inch CMOS camera with an O4 video transmitter for cinewhoops, micro freestyle quads and other sub-250g builds where weight is tight.

Key features

• Air unit weighs approx. 5.1g without the camera module and around 8.2g with it fitted, keeping all-up weight low on light builds
• 1/2-inch CMOS sensor with a 117.6° FOV and f/2.8 lens shoots up to 4K at 30/50/60fps, or 1080p up to 120fps, at up to 100Mbps
• 23GB of built-in storage records onboard footage — there is no microSD card slot on this model
• Single-antenna 1T1R link operates across the 5.1GHz and 5.8GHz bands with up to 60MHz of bandwidth, reaching as low as 20ms latency with DJI Goggles 3
• Runs on a 3.7-13.2V input, matching a 1S-3S battery or a flight controller BEC feed

Specifications

• Air unit weight: approx. 5.1g (camera excluded), approx. 8.2g (camera included)
• Dimensions: transmission module 30 x 30 x 6 mm; camera module 13.44 x 12.36 x 16.50 mm
• VTX mounting pattern: 25.5 x 25.5 mm
• Operating frequency: 5.17-5.25 GHz and 5.725-5.85 GHz
• Live view: 1080p at 30/50/60/100fps
• Max transmission range: 10 km (FCC), 6 km (CE)
• Max video resolution: 4K @ 30/50/60fps
• Input voltage: 3.7-13.2 V
• Built-in storage: 23GB

Video link: pairs with DJI Goggles 3, Goggles N3, Goggles 2 or Goggles Integra. Control link: a separate choice — fly with the DJI FPV Remote Controller 3 (Goggles 3 / N3) or FPV Remote Controller 2 (Goggles 2 / Integra), whose signal reaches the flight controller through the air unit over SBUS, or with any third-party radio through its own receiver (ELRS, for example) wired to the flight controller. Requires Betaflight 4.3.0 or INAV 8.0.1 or later.