Verifiable specifications
Product information supported by official records
| Recording media | A separately purchased UHS-I U3 microSD card is required for recording | View source |
|---|---|---|
| Video limit | Up to 4K 120fps video | View source |
| Sensor | 1/1.3-inch sensor | View source |
| Computer webcam | Connect by USB-C and select Webcam to use it as a computer camera | View source |
| Battery-case protection | The battery case is not waterproof | View source |
The recording card belongs on the preparation checklist
A camera that powers on is not necessarily ready to save a recording. For Action 4, the manual identifies a separately purchased UHS-I U3 microSD card as the recording medium. Check that requirement before choosing the recording mode.
The 1/1.3-inch sensor and up-to-4K 120fps specification describe the documented hardware and video ceiling. They are not this site’s measured low-light score or a claim that every other image feature works at the maximum frame rate.
A different connection for computer video
To use the camera as a computer webcam, connect it by USB-C and choose Webcam. This is the documented camera mode; file-transfer and webcam choices should not be treated as interchangeable.
Keep the battery case’s restriction separate from the camera’s capabilities: DJI says the case is not waterproof. A camera accessory does not inherit water protection simply because it accompanies an action camera.
Exact product identity
Product identifiers in official records
GTINs, UPCs, manufacturer SKUs and model codes can identify different colors, configurations or bundles. Only identifiers stated in official records are shown; an unpublished ASIN is not inferred.
| Identifier | Exact value | Variant or bundle | Market | Source and review |
|---|---|---|---|---|
| Manufacturer product name | Osmo Action 4 | Model level | Global | DJI · dl.djicdn.comPDF page 1 — DJI Osmo Action 4 · |