Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Sony - α6700 | Sony - α7C II |
|---|---|---|
| Megapixels | 26 MP | 33 MP |
| Weight | 493 g | 514 g |
| Max video | 4K120 | 4K60 |
| Sensor size | APS-C | Full Frame |
Between the α6700 and α7C II, the α6700 comes out ahead in weight / max video, while the α7C II wins on megapixels / sensor size. Overall, the α6700 scores 71.4 and the α7C II scores 71.7 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (71.4 vs 71.7). The decision is not about overall quality — both clear the bar — it is about which specific trade-offs fit your use.
Pick the α6700 if you carry the device everywhere and weight or thickness has been the deciding factor before. The biggest gaps in its favor are weight, max video. The single most decisive one: Weight — 21.00 g less. 493 vs 514.
Pick the α7C II if you care most about megapixels / sensor size. Its strongest claims are megapixels, sensor size. The single most decisive one: Megapixels — 26.92% more. 33 MP vs 26 MP.
Both ship with comparable in-body stabilization, af points, log profile, 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: Sony - α6700 or Sony - α7C II?
Sony - α7C II leads the current Mars Score by 0.3 points.The more useful decision is the trade-off behind that result: compare megapixels, sensor size, max video, weight against the way you will actually use the product.
Choose Sony - α6700 if…
Sony - α6700 has the measurable edge on weight g, max video.
Choose Sony - α7C II if…
Sony - α7C II has the measurable edge on megapixels, 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 Sony - α6700 wins
- ▲Weight — 21.00 g less. 493 vs 514.
- ▲Max video: 4K120 (vs 4K60).
Why Sony - α7C II wins
- ▲Megapixels — 26.92% more. 33 MP vs 26 MP.
- ▲Sensor size: Full Frame (vs APS-C).
Spec comparison
Sensor
| Spec | Sony - α6700 | Sony - α7C II |
|---|---|---|
| Sensor sizeⓘ | APS-C | Full Framelead |
| Megapixels | 26 MP | 33 MPlead |
| Max ISO | 32000 | 51200lead |
Video
| Spec | Sony - α6700 | Sony - α7C II |
|---|---|---|
| Max video | 4K120lead | 4K60 |
| RAW video | false | false |
| Log profileⓘ | true | true |
Autofocus
| Spec | Sony - α6700 | Sony - α7C II |
|---|---|---|
| AF pointsⓘ | 759 | 759 |
| Eye AFⓘ | true | true |
| In-body stabilizationⓘ | true | true |
Body & Controls
| Spec | Sony - α6700 | Sony - α7C II |
|---|---|---|
| Weight | 493 glead | 514 g |
| Weather sealedⓘ | true | true |
| Dual card slotsⓘ | false | false |