DJI - Osmo Action 3 vs DJI - Osmo Pocket 3

These two are nearly even on the Mars Score (76.5 vs 77.9). The decision is not about overall quality — both clear the bar — it is about which specific trade-offs fit your use.

Pick the Osmo Action 3 if you care most about waterproof depth. The biggest gaps in its favor are waterproof depth. The single most decisive one: Waterproof depth: 16 m vs 0 m.

Pick the Osmo Pocket 3 if you care most about stabilization. Its strongest claims are stabilization. The single most decisive one: Stabilization: gimbal-class (vs advanced).

Both ship with comparable max video, max 4k fps, horizon lock, so those specs do not 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 says both are well-rounded; the differences are about trade-offs, not quality.