Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Panasonic - HC-X2 | Sony - FX3 |
|---|---|---|
| Max video | 4K60 | 4K120 |
| Sensor size | 1" | Full Frame |
| Optical zoom | 24 | 0 |
Between the HC-X2 and FX3, the HC-X2 comes out ahead in optical zoom, while the FX3 wins on max video / sensor size. Overall, the HC-X2 scores 62.6 and the FX3 scores 63.1 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (62.6 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 HC-X2 if you care most about optical zoom. The biggest gaps in its favor are optical zoom. The single most decisive one: Optical zoom: 24 vs 0.
Pick the FX3 if you care most about max video / sensor size. Its strongest claims are max video, sensor size. The single most decisive one: Max video: 4K120 (vs 4K60).
Both ship with comparable 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.
Which should you buy: Panasonic - HC-X2 or Sony - FX3?
Sony - FX3 leads the current Mars Score by 0.5 points.The more useful decision is the trade-off behind that result: compare max video, optical zoom, sensor size against the way you will actually use the product.
Choose Panasonic - HC-X2 if…
Panasonic - HC-X2 has the measurable edge on optical zoom.
Choose Sony - FX3 if…
Sony - FX3 has the measurable edge on max video, sensor size.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why Panasonic - HC-X2 wins
- ▲Optical zoom: 24 vs 0.
Why Sony - FX3 wins
- ▲Max video: 4K120 (vs 4K60).
- ▲Sensor size: Full Frame (vs 1").
Spec comparison
Video
| Spec | Panasonic - HC-X2 | Sony - FX3 |
|---|---|---|
| Max video | 4K60 | 4K120lead |
| Optical zoom | 24lead | 0 |
| Sensor sizeⓘ | 1" | Full Framelead |
Audio
| Spec | Panasonic - HC-X2 | Sony - FX3 |
|---|---|---|
| XLR input | true | true |
| Headphone jack | true | true |
Design
| Spec | Panasonic - HC-X2 | Sony - FX3 |
|---|---|---|
| Weight | 2000 g | 715 glead |
| Articulating screen | true | true |