Sony - FX3 vs Sony - FX30

These two are evenly matched on the broad strokes; the decision sits on which individual spec advantages weigh more for your use.

Pick the FX3 if you care most about xlr input / sensor size. The biggest gaps in its favor are xlr input, sensor size.

The FX30 similarly does not carry a headline advantage on the popular specs — look at the full table for category-specific deltas.

Both ship with comparable max video, optical zoom, 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.