Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Akaso - Brave 8 | DJI - Osmo Action 4 |
|---|---|---|
| Max 4K fps | 60 | 120 |
| Waterproof depth | 10 m | 18 m |
| Max video | 4K60 | 4K120 |
| Stabilization | advanced | gimbal-class |
Between the Brave 8 and Osmo Action 4, the Brave 8 comes out ahead in several specs, while the Osmo Action 4 wins on max 4k fps / waterproof depth. Overall, the Brave 8 scores 66.6 and the Osmo Action 4 scores 80.8 on our Mars Score.
Which should you buy?
The Osmo Action 4 is the clear pick on raw spec strength, leading by 14.2 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.
The Brave 8 does not 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 4 if you care most about max 4k fps / waterproof depth. Its strongest claims are max 4k fps, waterproof depth, max video, among others. The single most decisive one: Max 4K fps — 100.00% more. 120 vs 60.
Both ship with comparable horizon lock, so those specs do not separate the two — focus on the differences below.
Bottom line: the Osmo Action 4 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Which should you buy: Akaso - Brave 8 or DJI - Osmo Action 4?
DJI - Osmo Action 4 leads the current Mars Score by 14.2 points.The more useful decision is the trade-off behind that result: compare max video, max 4k fps, waterproof depth against the way you will actually use the product.
Choose Akaso - Brave 8 if…
Akaso - Brave 8 does not lead a decisive measured field here, so choose it for price, ecosystem, design, or availability when those matter more to you.
Choose DJI - Osmo Action 4 if…
DJI - Osmo Action 4 has the measurable edge on max fps 4k, water depth m, max video.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why Akaso - Brave 8 wins
- No decisive advantages.
Why DJI - Osmo Action 4 wins
- ▲Max 4K fps — 100.00% more. 120 vs 60.
- ▲Waterproof depth — 80.00% more. 18 m vs 10 m.
- ▲Max video: 4K120 (vs 4K60).
- ▲Stabilization: gimbal-class (vs advanced).
Spec comparison
Video
| Spec | Akaso - Brave 8 | DJI - Osmo Action 4 |
|---|---|---|
| Max video | 4K60 | 4K120lead |
| Max 4K fps | 60 | 120lead |
| HDRⓘ | false | truelead |
| Log profileⓘ | false | truelead |
Stabilization
| Spec | Akaso - Brave 8 | DJI - Osmo Action 4 |
|---|---|---|
| Horizon lock | true | true |
| Stabilization | advanced | gimbal-classlead |
Durability
| Spec | Akaso - Brave 8 | DJI - Osmo Action 4 |
|---|---|---|
| Waterproof depth | 10 m | 18 mlead |
| Weight | 120 glead | 145 g |
| Removable lens | false | false |