Between the α6700 and α7 IV, the α6700 comes out ahead in weight and max video, while the α7 IV wins on megapixels and sensor size. Overall, the α6700 scores 47.6 and the α7 IV scores 52.8 on our Mars Score.
Which should you buy?
The α7 IV edges ahead on the Mars Score (47.6 vs 52.8), but the 5.2-point gap is small enough that the right pick comes down to which spec advantages matter to you.
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.
Pick the α7 IV if you care most about megapixels and sensor size. Its strongest claims are megapixels, sensor size.
Both ship with comparable in-body stabilization, af points, log profile, so those specs don't separate the two — focus on the differences below.
Bottom line: the α7 IV is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Sony - α6700 wins
- ▲Weight — 165.00 g less. 493 vs 658.
- ▲Max video: 4K120 (vs 4K60).
Why Sony - α7 IV wins
- ▲Megapixels — 26.92% more. 33 MP vs 26 MP.
- ▲Sensor size: Full Frame (vs APS-C).
Spec comparison
Sensor
| Spec | Sony - α6700 | Sony - α7 IV |
|---|---|---|
| Sensor sizeⓘ | APS-C | Full Framelead |
| Megapixels | 26 MP | 33 MPlead |
| Max ISO | 32000 | 51200lead |
Video
| Spec | Sony - α6700 | Sony - α7 IV |
|---|---|---|
| Max video | 4K120lead | 4K60 |
| RAW video | false | false |
| Log profileⓘ | true | true |
Autofocus
| Spec | Sony - α6700 | Sony - α7 IV |
|---|---|---|
| AF pointsⓘ | 759 | 759 |
| Eye AFⓘ | true | true |
| In-body stabilizationⓘ | true | true |
Body & Controls
| Spec | Sony - α6700 | Sony - α7 IV |
|---|---|---|
| Weight | 493 glead | 658 g |
| Weather sealedⓘ | true | true |
| Dual card slotsⓘ | false | truelead |
Frequently asked
Spec-level deep dives
More from the same brands
vsMars is reader-supported. When you buy through links on our site, we may earn an affiliate commission at no extra cost to you. Learn more.