Between the FX3 and FX6, the FX3 comes out ahead in several specs, while the FX6 wins on several specs. Overall, the FX3 scores 35 and the FX6 scores 35 on our Mars Score.
Which should you buy?
These two are evenly matched on the broad strokes, with the decision sitting on which individual spec advantages weigh more for your use.
The FX3 doesn't pull ahead on any single popular-comparison spec — its strengths sit in the spec table groups rather than the headline advantages.
The FX6 similarly doesn't 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, sensor size, so those specs don't 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 tells you both are well-rounded; the differences are about trade-offs, not quality.
Why Sony - FX3 wins
- No decisive advantages.
Why Sony - FX6 wins
- No decisive advantages.
Spec comparison
Video
| Spec | Sony - FX3 | Sony - FX6 |
|---|---|---|
| Max video | 4K120 | 4K120 |
| Optical zoom | 0 | 0 |
| Sensor sizeⓘ | Full Frame | Full Frame |
Audio
| Spec | Sony - FX3 | Sony - FX6 |
|---|---|---|
| XLR input | true | true |
| Headphone jack | true | true |
Design
| Spec | Sony - FX3 | Sony - FX6 |
|---|---|---|
| Weight | 715 glead | 890 g |
| Articulating screen | true | true |
Frequently asked
Spec-level deep dives
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