Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Canon - EOS R6 Mark II | Sony - α6700 |
|---|---|---|
| Weight | 670 g | 493 g |
| AF points | 1053 | 759 |
| Megapixels | 24 MP | 26 MP |
| Sensor size | Full Frame | APS-C |
| Max video | 4K60 | 4K120 |
Between the EOS R6 Mark II and α6700, the EOS R6 Mark II comes out ahead in af points / sensor size, while the α6700 wins on weight / megapixels. Overall, the EOS R6 Mark II scores 72.1 and the α6700 scores 71.4 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (72.1 vs 71.4). The decision is not about overall quality — both clear the bar — it is about which specific trade-offs fit your use.
Pick the EOS R6 Mark II if you care most about af points / sensor size. The biggest gaps in its favor are af points, sensor size. The single most decisive one: AF points — 38.74% more. 1053 vs 759.
Pick the α6700 if you carry the device everywhere and weight or thickness has been the deciding factor before. Its strongest claims are weight, megapixels, max video. The single most decisive one: Weight — 177.00 g less. 493 vs 670.
Both ship with comparable in-body stabilization, 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: Canon - EOS R6 Mark II or Sony - α6700?
Canon - EOS R6 Mark II leads the current Mars Score by 0.7 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 Canon - EOS R6 Mark II if…
Canon - EOS R6 Mark II has the measurable edge on af points, sensor size.
Choose Sony - α6700 if…
Sony - α6700 has the measurable edge on weight g, megapixels, max video.
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 R6 Mark II wins
- ▲AF points — 38.74% more. 1053 vs 759.
- ▲Sensor size: Full Frame (vs APS-C).
Why Sony - α6700 wins
- ▲Weight — 177.00 g less. 493 vs 670.
- ▲Megapixels — 8.33% more. 26 MP vs 24 MP.
- ▲Max video: 4K120 (vs 4K60).
Spec comparison
Sensor
| Spec | Canon - EOS R6 Mark II | Sony - α6700 |
|---|---|---|
| Sensor sizeⓘ | Full Framelead | APS-C |
| Megapixels | 24 MP | 26 MPlead |
| Max ISO | 102400lead | 32000 |
Video
| Spec | Canon - EOS R6 Mark II | Sony - α6700 |
|---|---|---|
| Max video | 4K60 | 4K120lead |
| RAW video | false | false |
| Log profileⓘ | true | true |
Autofocus
| Spec | Canon - EOS R6 Mark II | Sony - α6700 |
|---|---|---|
| AF pointsⓘ | 1053lead | 759 |
| Eye AFⓘ | true | true |
| In-body stabilizationⓘ | true | true |
Body & Controls
| Spec | Canon - EOS R6 Mark II | Sony - α6700 |
|---|---|---|
| Weight | 670 g | 493 glead |
| Weather sealedⓘ | true | true |
| Dual card slotsⓘ | truelead | false |