DJI O4 Air Unit Pro
DJI's flagship digital air unit: camera and transmitter in one, recording 4K on board while sending live video to DJI goggles. It turns down to 25 mW for European use, but only reaches full power and range on FCC settings.
Recorded specification
Every value carries the source it was read from. A property with no recorded source is marked as such rather than presented as a fact. If one of them is wrong, tell us: it is the fastest way it gets fixed.
| Property | Value | Source |
|---|---|---|
| Mounting patterns supported decides fitSome boards are drilled for two patterns and bolt into either. | 20 × 20 mm25.5 × 25.5 mm | Oscar Liangchecked 2026-07-27Quote 1, below the table |
| Video system decides fit | DJI O4 | Oscar Liangchecked 2026-07-27Quote 1, below the table |
| Maximum transmit powerCompliance-critical: most countries cap unlicensed 5.8 GHz transmit power, and the cap differs between them. | 1200 mW | Oscar Liangchecked 2026-07-27Quote 1, below the table |
| Minimum transmit powerDecides whether a high-power VTX is merely restricted to a setting, or unusable here. | 25 mW | Oscar Liangchecked 2026-07-27Quote 1, below the table |
| Antenna connector decides fit | U.FL / IPEX | DJI product specificationschecked 2026-07-27Quote 2, below the table |
| Glass-to-glass latencyTime from the scene reaching the camera to it reaching your eye. The number racers choose a system on, and the one thing analog still wins. | 15 ms | DJI product specificationschecked 2026-07-27Quote 3, below the table |
| Onboard recordingThe best resolution the unit itself records, separate from what the goggles' DVR captures. Analog gear records nothing onboard, and that is recorded as its own answer rather than left blank. | 4K | DJI product specificationschecked 2026-07-27Quote 4, below the table |
| Minimum cell count decides fit | 2 S | Oscar Liangchecked 2026-07-27Quote 1, below the table |
| Maximum cell count decides fit | 6 S | Oscar Liangchecked 2026-07-27Quote 1, below the table |
| Carries a cameraA complete drone is not in the camera category but carries one, and a digital air unit is a camera and a transmitter in one part. Many countries trigger registration on the camera regardless of the drone's weight. | Yes | Oscar Liangchecked 2026-07-27Quote 1, below the table |
| WeightBuild-critical rather than compat-critical: needed to answer registration and class questions. | 32 g | DJI product specificationschecked 2026-07-27Quote 3, below the table |
- Oscar Liangchecked 2026-07-27
Lowest Latency: DJI Goggles 3 in Racing Mode: 15ms; Input Voltage: 7.4-26.4 V; Mounting Options: 20×20mm and 25.5×25.5mm; Input Voltage 7.4V – 26.4V (2S to 6S); The power level options are: Auto, 25mW, 50mW, 100mW, 200mW, 400mW, 700mW, and 1200mW
- DJI product specificationschecked 2026-07-27
DJI O4 Air Unit Pro Antenna: Single-frequency counter-clockwise polarized omnidirectional antenna with strong anti-interference capabilities. Equipped with an I-PEX connector for easy installation.
- DJI product specificationschecked 2026-07-27
DJI O4 Air Unit Pro — Weight: Air Unit (camera module excluded): Approx. 15.6 g; Air Unit (camera module included): Approx. 32 g; Antenna: Approx. 2.1 g/pcs. Lowest Latency: With DJI Goggles 3 and pick racing mode: With 1080p/100fps video transmission quality, the latency is as low as 15 ms.
- DJI product specificationschecked 2026-07-27
DJI O4 Air Unit Pro; 4K (4:3): 3840×2880@30/48/50/60fps; 4K (16:9): 3840×2160@30/48/50/60/100/120fps
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What this fits
Checked against every other product in the catalog by the same engine the planner runs, rule by rule. Where a specification is missing the answer is unknown, which is a different answer from compatible.
Frame
✓Works with (18)?Not enough recorded specification (2)
All frame · All 20 frame checked against this video transmitter
- ✓Works with (9)
The frame accepts a 25.5 × 25.5 mm stack.
Rule: Stack mounting pattern
- BetaFPV Meteor65 Air frame
- BetaFPV Meteor65 frame
- BetaFPV Meteor65 Micro brushless frame
- BetaFPV Meteor75 Air frame
- BetaFPV Pavo25 2.5" cinewhoop frame kit
- BetaFPV Pavo35 3.5" cinewhoop frame kit
- GEPRC CineLog 25 GEP-CL25 frame kit
- GEPRC CineLog30 V3 GEP-CL30 V3 frame kit
- GEPRC CineLog35 V3 GEP-CL35 V3 frame kit
- ✓Works with (8)
The frame accepts a 20 × 20 mm stack.
Rule: Stack mounting pattern
- ✓Works with (1)
The frame accepts a 20 × 20 mm, 25.5 × 25.5 mm stack.
Rule: Stack mounting pattern
- ?Not enough recorded specification (2)
The mounting pattern of one of these is not recorded yet.
Rule: Stack mounting pattern
FPV camera
×Does not work with (20)?Not enough recorded specification (3)
All fpv camera · All 22 fpv camera checked against this video transmitter
- ×Does not work with (15)
A Analog 5.8 GHz camera cannot feed a DJI O4 transmitter. Digital systems pair a camera and transmitter from the same family.
Rule: Camera matches the video transmitter
- BetaFPV C03
- Caddx Ant Lite Nano
- Caddx Baby Ratel 2 Nano
- Caddx Ratel 2
- Caddx Ratel Pro
- Foxeer Cat 4 Micro
- Foxeer Cat 4 Mini
- Foxeer Predator Micro V5
- Foxeer Predator Nano V5 Connector
- Foxeer Predator Nano V5 Solder pad
- Foxeer Razer Micro
- Foxeer T-Rex Mini
Show the other 3
- ×Does not work with (3)
A Walksnail Avatar HD camera cannot feed a DJI O4 transmitter. Digital systems pair a camera and transmitter from the same family.
- ×Does not work with (2)
A HDZero camera cannot feed a DJI O4 transmitter. Digital systems pair a camera and transmitter from the same family.
- ?Not enough recorded specification (3)
Not enough recorded specification to judge this combination.
Battery
×Does not work with (11)✓Works with (17)
All battery · All 19 battery checked against this video transmitter
- ×Does not work with (11)
1S is outside the 2–6S range DJI O4 Air Unit Pro accepts.
- ✓Works with (8)
6S is inside the DJI O4 Air Unit Pro supported range.
- ✓Works with (6)
4S is inside the DJI O4 Air Unit Pro supported range.
- ✓Works with (3)
3S is inside the DJI O4 Air Unit Pro supported range.
Goggles
×Does not work with (16)✓Works with (3)?Not enough recorded specification (4)
All goggles · All 23 goggles checked against this video transmitter
- ×Does not work with (1)
BetaFPV VR02 Goggles does not receive DJI O4.
Rule: Video system match
- ×Does not work with (1)
BetaFPV VR03 Goggles does not receive DJI O4.
Rule: Video system match
- ×Does not work with (1)
BetaFPV VR04 Goggles does not receive DJI O4.
Rule: Video system match
- ×Does not work with (1)
Eachine EV800D does not receive DJI O4.
Rule: Video system match
- ×Does not work with (1)
Fat Shark ECHO does not receive DJI O4.
Rule: Video system match
- ×Does not work with (1)
Fat Shark HDO+ does not receive DJI O4.
Rule: Video system match
- ×Does not work with (1)
HDZero BoxPro does not receive DJI O4.
Rule: Video system match
- ×Does not work with (1)
HDZero Goggles does not receive DJI O4.
Rule: Video system match
- ×Does not work with (1)
HDZero Goggles 2 does not receive DJI O4.
Rule: Video system match
- ×Does not work with (1)
Orqa FPV.One Pilot does not receive DJI O4.
Rule: Video system match
- ×Does not work with (1)
Skyzone Cobra SD does not receive DJI O4.
Rule: Video system match
- ×Does not work with (1)
Skyzone Cobra X does not receive DJI O4.
Rule: Video system match
- ×Does not work with (1)
Skyzone SKY04O Pro does not receive DJI O4.
Rule: Video system match
- ×Does not work with (1)
Skyzone SKY04X Pro does not receive DJI O4.
Rule: Video system match
- ×Does not work with (1)
Walksnail Avatar Goggles L does not receive DJI O4.
Rule: Video system match
- ×Does not work with (1)
Walksnail Avatar Goggles X does not receive DJI O4.
Rule: Video system match
- ✓Works with (1)
DJI Goggles 3 receives the DJI O4 system.
Rule: Video system match
- ✓Works with (1)
DJI Goggles Integra receives the DJI O4 system.
Rule: Video system match
- ✓Works with (1)
DJI Goggles N3 receives the DJI O4 system.
Rule: Video system match
- ?Not enough recorded specification (4)
Not enough recorded specification to judge this combination.
Rule: Video system match
Antennas
!Works, with a compromise (21)✓Works with (6)
All antennas · All 10 antennas checked against this video transmitter
- !Works, with a compromise (10)
This antenna is SMA and DJI O4 Air Unit Pro takes U.FL / IPEX. A pigtail adapter is needed, and it adds a little loss.
Rule: Antenna connector match
- !Works, with a compromise (6)
This antenna is RP-SMA and DJI O4 Air Unit Pro takes U.FL / IPEX. A pigtail adapter is needed, and it adds a little loss.
Rule: Antenna connector match
- !Works, with a compromise (5)
This antenna is MMCX and DJI O4 Air Unit Pro takes U.FL / IPEX. A pigtail adapter is needed, and it adds a little loss.
Rule: Antenna connector match
- ✓Works with (6)
Both use U.FL / IPEX.
Rule: Antenna connector match
The standards this part is judged by
What the properties above actually mean, which differences are absolute, and where the names used in shops mislead.