Between the Osmo Action 3 and Ace Pro 2, the Osmo Action 3 comes out ahead in waterproof depth, while the Ace Pro 2 wins on max video and stabilization. Overall, the Osmo Action 3 scores 95 and the Ace Pro 2 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 Osmo Action 3 if you care most about waterproof depth. The biggest gaps in its favor are waterproof depth.
Pick the Ace Pro 2 if you care most about max video and stabilization. Its strongest claims are max video, stabilization.
Both ship with comparable max 4k fps, 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 DJI - Osmo Action 3 wins
- ▲Waterproof depth — 33.33% more. 16 m vs 12 m.
Why Insta360 - Ace Pro 2 wins
- ▲Max video: 8K (vs 4K120).
- ▲Stabilization: gimbal-class (vs advanced).
Spec comparison
Video
| Spec | DJI - Osmo Action 3 | Insta360 - Ace Pro 2 |
|---|---|---|
| Max video | 4K120 | 8Klead |
| Max 4K fps | 120 | 120 |
| HDRⓘ | true | true |
| Log profileⓘ | false | truelead |
Stabilization
| Spec | DJI - Osmo Action 3 | Insta360 - Ace Pro 2 |
|---|---|---|
| Horizon lock | true | true |
| Stabilization | advanced | gimbal-classlead |
Durability
| Spec | DJI - Osmo Action 3 | Insta360 - Ace Pro 2 |
|---|---|---|
| Waterproof depth | 16 mlead | 12 m |
| Weight | 145 glead | 180 g |
| Removable lens | false | truelead |
Frequently asked
Spec-level deep dives
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