Blackmagic - Pocket Cinema Camera 6K Pro vs Sony - FX3

These two are nearly even on the Mars Score (62.9 vs 63.1). The decision is not about overall quality — both clear the bar — it is about which specific trade-offs fit your use.

Pick the Pocket Cinema Camera 6K Pro if you care most about max video. The biggest gaps in its favor are max video. The single most decisive one: Max video: 6K (vs 4K120).

Pick the FX3 if you care most about sensor size. Its strongest claims are sensor size. The single most decisive one: Sensor size: Full Frame (vs Super 35).

Both ship with comparable optical zoom, xlr input, 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.