Want to Add a Second Camera? — Why HDMI Output and Remote Control Would Not Coexist
I shoot with a gimbal camera — a DJI Osmo Pocket 4. It handles shake on its own, so for anything filmed while walking, that one body has been enough.
Then I tried to film with two cameras, and stopped. Feeding several cameras into one switcher means each camera needs a way to send its picture out, and that way is normally HDMI. But while HDMI was being sent, the phone app could no longer control the camera. A camera placed across the room could not be panned or zoomed from where I was standing.
Send the picture out, and you lose remote control. Do these two really not go together?
This reflects the situation as of September 2026.
- 1. What I Checked — Scope and Sources
- 2. Why a Second Camera Brings HDMI Into It
- 3. Does the Osmo Pocket Support HDMI?
- 4. Three Routes to an HDMI Signal
- 5. Is There a Model That Has Both HDMI and Remote Control?
- 6. Covering Remote Control Through a Different Port
- 7. Closing — One Camera You Carry, One You Set Down
- 8. Sources I Checked
What I Checked — Scope and Sources
I looked at the small gimbal cameras you can buy as of September 2026, plus models aimed at a similar job. I went through manufacturer support pages, product pages, and retailer spec sheets. The links are at the end of this article.
The only unit I own is the Osmo Pocket 4; I do not have the other models on hand. Wherever this turns into a comparison, I am quoting published specifications and published reviews rather than my own testing.
Why a Second Camera Brings HDMI Into It
With one camera, a USB cable to the computer is enough. The camera is recognised as a webcam (UVC). Add a second camera, though, and that route runs out of room.
To cut between several pictures, or place them side by side, you put a switcher in the middle. Almost every switcher takes its input over HDMI. The more cameras you add, the more it matters whether a camera can send HDMI at all.
Camera B → HDMI ↗
Does the Osmo Pocket Support HDMI?
DJI’s own support pages say it plainly. The Osmo series does not support HDMI output, and Type-C to HDMI adapters are explicitly excluded as well. The models listed instead are DJI Action 2, Osmo Action 3 / 4 / 5 Pro / 6, and the Osmo Pocket 3 and Osmo Pocket 4 series.
What is offered in its place is the Webcam function, described as a way to send the picture to a computer screen. As a first-party feature, the HDMI socket simply is not there.
Three Routes to an HDMI Signal
People do get HDMI out of these cameras anyway. From what I found, the routes split three ways.
| Route | How it works | Remote control |
|---|---|---|
| First-party | No HDMI socket. Sends to the computer as a webcam (UVC) | The app works. But this is not HDMI |
| Expansion module | Third parties sell USB/HDMI hubs that attach to the base | Varies by product. Needs checking |
| Converter box or software | Another device takes the picture over USB or Wi-Fi and sends HDMI out | One more box in the chain, so lag is added |
If you are sending HDMI, which of these routes you took changes the story. Since none of them is the first-party socket, whether the app keeps working at the same time is likely to differ from product to product.
Is There a Model That Has Both HDMI and Remote Control?
Among gimbal cameras shaped to fit in a pocket, I could not find one with both. Widen the scope a little and you reach the AI-tracking PTZ cameras, where products with both do exist.
OBSBOT Tail Air
| Video output | micro-HDMI / USB-C (UVC, also carries power) / Wi-Fi with NDI|HX3 (sold separately) / wired LAN with PoE (adapter sold separately) |
|---|---|
| Control | Phone app / Bluetooth remote (pan and tilt by wrist movement, switches between up to three units) / gesture control |
| Gimbal | Two motorised axes (pan and tilt), 6-axis gyro |
| Sensor | 1/1.8-inch, 8 megapixels, 4K at 30 fps |
| Size and weight | 69.65 × 73.25 × 132.5 mm, 344.5 g |
This is built for streaming and live production, and its intended shape is probably exactly that: feeding external gear over HDMI while you swing the camera from an app or a remote. It is not pocket-sized; it sits on a tripod. That points in a different direction from a camera you carry in your hand.
That said, I could not find a primary source stating outright that the app still controls the camera while HDMI is being sent. Asking the manufacturer before buying looks like the safe move.
Covering Remote Control Through a Different Port
Turn the problem around, and some models handle remote control without relying on a phone app at all.
On the Insta360 Luna Ultra, the 2-inch OLED touchscreen detaches from the body. Insta360 states that it keeps a picture feed and control at a range of up to 20 metres. You leave the camera somewhere and check the shot from the screen in your hand.
On the Feiyu Pocket 3, the camera head comes off the handle entirely. Once separated, the two stay connected wirelessly, and the handle becomes the remote.
For neither of them could I find HDMI output in the official specifications. As they stand, they do not reach the job of feeding several cameras into a switcher.
Closing — One Camera You Carry, One You Set Down
As of September 2026, pocket-sized gimbal cameras have no HDMI socket. DJI states the lack of support officially. If you want HDMI, it looks like a third-party expansion module or a converter box in the chain.
The cameras that carry both HDMI and remote control from the start turned out to be the PTZ units that sit on a tripod. For now, the one you walk around with and the one you set down to join a multi-camera rig look like separate products.
A gimbal has been chosen, all along, as the tool that steadies a picture. Once you start combining several cameras, what is being asked of it shifts from steadiness to a port that sends the picture out and a way to reach the camera from a distance. The same word, gimbal, seems to demand different things depending on where the camera is standing.
This blog is normally about generative AI running on the computer in front of me. Footage shot on several cameras still has editing and generation waiting for it afterwards. Which port you choose on the shooting side may well decide whether those later steps can stay on your own machine.
On the subject of running it yourself: here is what happened when the same video-generation settings produced times that would not settle.
https://kimono-oyaji.com/en/rtx3090-vram-fit-speed-en/Sources I Checked
- DJI Support — “Do Osmo series devices support HDMI output?" (states that the Osmo series supports neither HDMI output nor a Type-C to HDMI adapter)
- OBSBOT Tail Air — official tech specifications
- Insta360 Luna Ultra manual — “Using the Touchscreen Remote" (the detached screen stays connected up to 20 m)
- Feiyu Pocket 3 — official product page (camera and handle separate and stay wirelessly connected)