Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Canon - EOS R5 C | Sony - FDR-AX700 |
|---|---|---|
| XLR input | true | false |
| Max video | 8K | 4K30 |
| Sensor size | Full Frame | 1" |
| Optical zoom | 0 | 12 |
Between the EOS R5 C and FDR-AX700, the EOS R5 C comes out ahead in xlr input / max video, while the FDR-AX700 wins on optical zoom. Overall, the EOS R5 C scores 71 and the FDR-AX700 scores 62.6 on our Mars Score.
Which should you buy?
The EOS R5 C is the clear pick on raw spec strength, leading by 8.4 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.
Pick the EOS R5 C if you care most about xlr input / max video. The biggest gaps in its favor are xlr input, max video, sensor size. The single most decisive one: Has XLR input.
Pick the FDR-AX700 if you care most about optical zoom. Its strongest claims are optical zoom. The single most decisive one: Optical zoom: 12 vs 0.
There are no meaningful ties on the headline specs — every popular-comparison metric has a winner.
Bottom line: the EOS R5 C is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Which should you buy: Canon - EOS R5 C or Sony - FDR-AX700?
Canon - EOS R5 C leads the current Mars Score by 8.4 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 Canon - EOS R5 C if…
Canon - EOS R5 C has the measurable edge on has xlr input, max video, sensor size.
Choose Sony - FDR-AX700 if…
Sony - FDR-AX700 has the measurable edge on optical zoom.
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 Canon - EOS R5 C wins
- ▲Has XLR input.
- ▲Max video: 8K (vs 4K30).
- ▲Sensor size: Full Frame (vs 1").
Why Sony - FDR-AX700 wins
- ▲Optical zoom: 12 vs 0.
Spec comparison
Video
| Spec | Canon - EOS R5 C | Sony - FDR-AX700 |
|---|---|---|
| Max video | 8Klead | 4K30 |
| Optical zoom | 0 | 12lead |
| Sensor sizeⓘ | Full Framelead | 1" |
Audio
| Spec | Canon - EOS R5 C | Sony - FDR-AX700 |
|---|---|---|
| XLR input | truelead | false |
| Headphone jack | true | true |
Design
| Spec | Canon - EOS R5 C | Sony - FDR-AX700 |
|---|---|---|
| Weight | 770 glead | 934 g |
| Articulating screen | true | true |