GoPro - HERO13 Black Mini (rumored) vs Sony - HDR-AS300

The HERO13 Black Mini (rumored) edges ahead on the Mars Score (69.8 vs 65), but the 4.8-point gap is small enough that the right pick comes down to which spec advantages matter to you.

Pick the HERO13 Black Mini (rumored) if you care most about horizon lock / max video. The biggest gaps in its favor are horizon lock, max video. The single most decisive one: Has Horizon lock.

Pick the HDR-AS300 if you care most about waterproof depth. Its strongest claims are waterproof depth. The single most decisive one: Waterproof depth — 500.00% more. 60 m vs 10 m.

Both ship with comparable max 4k fps, stabilization, 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.