Between the Osmo Action 4 and Osmo Action 5 Pro, the Osmo Action 4 comes out ahead in several specs, while the Osmo Action 5 Pro wins on waterproof depth. Overall, the Osmo Action 4 scores 95 and the Osmo Action 5 Pro 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.
The Osmo Action 4 doesn't pull ahead on any single popular-comparison spec — its strengths sit in the spec table groups rather than the headline advantages.
Pick the Osmo Action 5 Pro if you care most about waterproof depth. Its strongest claims are waterproof depth.
Both ship with comparable max video, max 4k fps, stabilization, 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 DJI - Osmo Action 4 wins
- No decisive advantages.
Why DJI - Osmo Action 5 Pro wins
- ▲Waterproof depth — 11.11% more. 20 m vs 18 m.
Spec comparison
Video
| Spec | DJI - Osmo Action 4 | DJI - Osmo Action 5 Pro |
|---|---|---|
| Max video | 4K120 | 4K120 |
| Max 4K fps | 120 | 120 |
| HDRⓘ | true | true |
| Log profileⓘ | true | true |
Stabilization
| Spec | DJI - Osmo Action 4 | DJI - Osmo Action 5 Pro |
|---|---|---|
| Horizon lock | true | true |
| Stabilization | gimbal-class | gimbal-class |
Durability
| Spec | DJI - Osmo Action 4 | DJI - Osmo Action 5 Pro |
|---|---|---|
| Waterproof depth | 18 m | 20 mlead |
| Weight | 145 glead | 146 g |
| Removable lens | false | false |
Frequently asked
Spec-level deep dives
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