Between the HERO13 Black and Osmo Action 4, the HERO13 Black comes out ahead in max video, while the Osmo Action 4 wins on waterproof depth. Overall, the HERO13 Black scores 95 and the Osmo Action 4 scores 95 on our Mars Score.
Which should you buy?
These two are evenly matched on the broad strokes, with the decision sitting on which individual spec advantages weigh more for your use.
Pick the HERO13 Black if you care most about max video. The biggest gaps in its favor are max video.
Pick the Osmo Action 4 if you care most about waterproof depth. Its strongest claims are waterproof depth.
Both ship with comparable max 4k fps, stabilization, horizon lock, so those specs don't separate the two — focus on the differences below.
Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity tells you both are well-rounded; the differences are about trade-offs, not quality.
Why GoPro - HERO13 Black wins
- ▲Max video: 5.3K (vs 4K120).
Why DJI - Osmo Action 4 wins
- ▲Waterproof depth — 80.00% more. 18 m vs 10 m.
Spec comparison
Video
| Spec | GoPro - HERO13 Black | DJI - Osmo Action 4 |
|---|---|---|
| Max video | 5.3Klead | 4K120 |
| Max 4K fps | 120 | 120 |
| HDRⓘ | true | true |
| Log profileⓘ | true | true |
Stabilization
| Spec | GoPro - HERO13 Black | DJI - Osmo Action 4 |
|---|---|---|
| Horizon lock | true | true |
| Stabilization | gimbal-class | gimbal-class |
Durability
| Spec | GoPro - HERO13 Black | DJI - Osmo Action 4 |
|---|---|---|
| Waterproof depth | 10 m | 18 mlead |
| Weight | 159 g | 145 glead |
| Removable lens | truelead | false |
Frequently asked
Spec-level deep dives
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