Le DJI O4 Air Unit et DJI O4 Air Unit Pro are popular among FPV enthusiasts worldwide. These two DJI FPV camera systems are excellent. Both of them are of high image quality and stable transmission. The price of the DJI O4 Pro Air Unit is triple that of the DJI O4 Air Unit. Why is the price so different? What is the difference between the DJI O4 Air Unit and the DJI O4 Air Unit Pro? And which one is suitable for you?
Have so many questions? Now, scroll down to find the answer!
Table des matières
DJI O4 Air Unit vs Pro: How do They Perform?
DJI O4 Air Unit Review
What is in the Package?
1 x DJI O4 AirUnit Camera Module
1 x DJI O4 AirUnit Transmission Module
2 x DJI O4 AirUnit Antenna
1 x DJI O4 AirUnit 3-in-1 Cable
How is DJI O4 Air Unit?
The DJI O4 Air Unit is just 8.2 grams. It ranks among the lightest VTX systems available today. Besides, compact in form yet powerful in performance. Its transmitter is at 30×30×6 mm, and O4 Air Unit camera module is 13.44×12.36×16.5 mm. With such a compact and lightweight design, it will not affect flying your drone. With its 20×20 mm mounting pattern, it fits easily onto most 2-inch or smaller drone frames.
Inside the small frame sits a 1/2-inch CMOS image sensor, capable of recording crisp 4K/60fps video in MP4 format. Footage flows at up to 100 Mbps, supported by RockSteady 3.0+ stabilization or Gyroflow for smooth post-production correction.
Transmission comes through strong and stable via a single 1T1R O4 Air Unit antenna, reaching up to 10 km (FCC) or 6 km (CE). Latency stays impressively low — about 20 milliseconds when connected with DJI Goggles 3 in Racing Mode — keeping control and vision perfectly in sync.
Power comes easily to the unit through a flexible input voltage range of 3.7–13.2 volts, supporting 1S to 3S systems without the need for extra regulators. Integration with most FPV setups happens cleanly and without fuss.
What’s more, 1080p/100fps live view, 60 MHz transmission bandwidth, and 23 GB of built-in storage remove the need for an SD card entirely.
See the user’s review:
DJI O4 Air Unit Pro Review
What is in the Package?
- 1 × DJI O4 Air Unit Pro Camera Module
- 1 × DJI O4 Air Unit Pro Transmission Module
- 2 × DJI O4 Air Unit Pro Antennas
- 1 × DJI O4 Air Unit Pro 3-in-1 Cable
How is DJI O4 Pro Air Unit?
Weighing 32 grams total (15.6 g for the VTX alone), it is heavier than DJI O4 Air Unit. That is for its larger diameter and the CMOS camera sensor. As it is designed for the larger drone frame, it does not affect drone flying much.
Its 33.5×33.5×13 mm transmission module and 25.55×20×23.3 mm camera fit both 20×20 mm and 25.5×25.5 mm mounts, ideal for 3-inch and larger drone frames.
The DJI O4 Pro Air Unit features its professional flagship digital FPV system. It can capture the image at 4K/120fps! It features a 1/1.3-inch CMOS camera sensor, offering outstanding low-light performance and color depth. The DJI O4 Air Unit Pro 4K 120fps capability delivers buttery-smooth footage with high dynamic range using D-Log M color mode — perfect for post-production color grading.
The O4 Air Unit Pro camera module offers an ultra-wide 155° field of view (FOV), f/2.8 aperture, and supports DJI Avata 2 ND filters (ND8/16/32) for professional exposure control.
The DJI O4 Pro Air Unit specifications include dual antennas (2T2R) for maximum signal stability and a transmission range of up to 15 km (FCC) or 8 km (CE). The DJI O4 Air Unit Pro range ensures uninterrupted HD video even in challenging environments.
Latency is reduced to 15 ms in Racing Mode, while live view supports 1080p/100fps via H.265 encoding. The DJI O4 Air Unit Pro transmission module also allows manual and auto channel modes, supporting both DJI Goggles 3, N3, 2, and Integra.
The DJI O4 Pro Air Unit input voltage range is 7.4–26.4 V, supporting 2S–6S batteries directly. Storage includes 4 GB built-in plus microSD support up to 512 GB. Supporting such large storage, it will let you record long cinematic flights easily.
See the user’s review:
Which is Suitable for You?
DJI O4 Air Unit vs Pro: Specification
| Fonctionnalité | DJI O4 Air Unit | DJI O4 Air Unit Pro |
|---|---|---|
| Capteur d'image | 1/2-inch CMOS | 1/1.3-inch CMOS |
| Max Resolution | 4K @ 60fps | 4K @ 120fps |
| FOV | 117.6° | 155° |
| Ouverture | f/2.8 | f/2.8 |
| Max Bitrate | 100 Mbps | 130 Mbps |
| Min Latency | 20 ms | 15 ms |
| Transmission Range (FCC) | 10 km | 15 km |
| Built-in Storage | 23 GB | 4 GB + microSD (512 GB max) |
| Antennas | 1T1R | 2T2R |
| Weight (with camera) | 8.2 g | 32 g |
| Input Voltage Range | 3.7–13.2 V | 7.4–26.4 V |
| Mounting Pattern | 20×20 mm | 20×20 mm / 25.5×25.5 mm |
| FPV Goggles Compatibility | Goggles 2 / Integra / 3 / N3 | Goggles 2 / Integra / 3 / N3 |
| Color Mode | Normal | Normal / D-Log M |
| Release Date | 2025 | 2025 |
What is the Difference between Them?
The standard O4 Air Unit is ultra-light and compact (8.2g VTX, 30x30x6mm VTX), designed for micro and racing drones (1S-3S power). It offers a 10 km (FCC) range, 20 ms latency, and 4K/60fps video from a 1/2-inch sensor.
The O4 Air Unit Pro is built for professional pilots and larger frames (2S-6S power), being heavier and larger (32g VTX, 33.5×33.5x13mm VTX). It boasts superior performance with a 15 km (FCC) range, a lower 15 ms latency (in Racing Mode), and better video quality, thanks to a 1/1.3-inch sensor that captures 4K/120fps with a higher 130 Mbps bitrate and D-Log M color, all supported by a dual-antenna (2T2R) setup for increased signal stability compared to O4 Air Unit’s single antenna (1T1R).
Both units work with the DJI Goggles 2, Goggles Integra, Goggles 3, and Goggles N3, as well as the DJI FPV Remote Controller 2 or 3.
You should know that:
The DJI O4 Air Unit fits 2-inch micro frames or more compact drones.
The DJI O4 Air Unit Pro works best with 3-inch or larger drone frames.
Have you learn the difference between them? For more information, you can read more on Banggood!
