DJI Osmo Action 4 Action Camera Kit
- 4K video, 120fps at 4K 16:9, 2.7K and 1080p
- 155 degree field of view up to 4K/60fps, stabilization off
- IP68 waterproof rating with covers closed
- 38 MP stills, JPEG, CMOS sensor
- 128 GB microSD card included, C10
- 2.5 inch screen, 149 g
- Pre-Rec buffer of 5 to 60 seconds before recording
- Electronic stabilization, MP4 and MOV files
Updated 25 days ago · Based on the Amazon listing and published specifications, not hands-on testing.
A rugged 4K camera kit for riders, paddlers and anglers, sold with a memory card, mount and protective frame so it is ready to clip on. The extension rod named in the title is missing from the listed contents, so confirm before relying on it.
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ASIN: B0F4DSMJCYModel: Action 4Category: Camcorders
Overview
A cyclist or angler gets a compact waterproof camera that clips into its protective frame and attaches to curved surfaces like helmets through the adhesive mount and buckle. Pre-Rec saves the moments before you hit record, and highlight tags mark clips for faster editing.
Kit completeness sets this bundle apart: storage, mounting and framing arrive with the camera. Stabilization must be switched off to use the widest view, and vertical shooting relies on the protective frame.
Who it's for
Made for outdoor sports where the camera rides on a helmet or board and gets wet. People filming sit-down interviews or studio work with external audio should look at a camcorder instead.
Pros and cons
- Memory card included, ready to record
- Pre-Rec saves missed moments
- Highlight tags speed up editing
- Waterproof body for wet sports
- Extension rod absent from contents list
- Widest view disables stabilization
- Vertical shooting requires the frame
- Waterproof case advised for long dives
Performance notes
Footage smoothness comes from electronic stabilization, which steadies the frame in software, so the widest view gives it up. Low-light results lean on the night shooting mode and the CMOS sensor. Battery life varies with resolution, Wi-Fi and screen use, per DJI's own lab notes.
Specifications
| Brand | DJI |
|---|---|
| Model | Action 4 |
| Dimensions & fit | |
| Item weight | 0.33 pounds |
| Screen size | 2.5 inches |
| Dimensions | 2.9 × 1.3 × 1.9 inches |
| Flash memory installed size | 128 GB |
| Construction & materials | |
| Video frame rate | 120fps at 4K, 2.7K and 1080p (16:9) |
| Compatibility & installation | |
| Connectivity technology | USB-C, Wi-Fi |
| Compatible devices | Tablet, Smartphone, Laptop, Personal Computer |
| Warranty & support | |
| Supported image format | JPEG |
| Supported audio format | AAC |
| Other details | |
| Video resolution | 4K |
| Focus type | Auto Focus |
| Sensor type | CMOS |
| Water resistance level | Waterproof, IP68 |
| Memory card | MicroSD, C10 |
| Video capture format | MP4, MOV |
| Effective still resolution | 38 MP |
| Lens type | Wide Angle |
| Image stabilization | Electronic |
| Shooting modes | Custom, Night, Slow Motion, Time Lapse |
| Image aspect ratio | 16:9 |
| Field of view | 155 degrees |
Frequently asked questions
How do I attach the DJI Osmo Action 4 to a helmet?
Fit the camera into the protective frame, then use the mounting buckle with the curved adhesive mount. A thumb screw locks the buckle in place.
Can the Osmo Action 4 go underwater without a case?
DJI rates the camera IP68 once the battery cover, USB-C port cover and glass lens cover are closed tight. For long-term underwater use or high water pressure DJI recommends its waterproof case, which is not in the listed contents.
Does the Osmo Action 4 shoot vertical video?
Yes, but DJI says the horizontal-vertical protective frame is required for vertical shooting.
Is the mini extension rod in the box?
The title mentions it, but the included items list does not. Ask the seller before counting on it.