Between the SL3 and α6700, the SL3 comes out ahead in megapixels and af points, while the α6700 wins on weight. Overall, the SL3 scores 70.8 and the α6700 scores 47.6 on our Mars Score.
Which should you buy?
The SL3 is the clear pick on raw spec strength, leading by 23.2 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 SL3 if you care most about megapixels and af points. The biggest gaps in its favor are megapixels, af points, sensor size, among others.
Pick the α6700 if you carry the device everywhere and weight or thickness has been the deciding factor before. Its strongest claims are weight.
Both ship with comparable in-body stabilization, log profile, so those specs don't separate the two — focus on the differences below.
Bottom line: the SL3 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Leica - SL3 wins
- ▲Megapixels — 130.77% more. 60 MP vs 26 MP.
- ▲AF points — 2.64% more. 779 vs 759.
- ▲Sensor size: Full Frame (vs APS-C).
- ▲Max video: 8K (vs 4K120).
Why Sony - α6700 wins
- ▲Weight — 357.00 g less. 493 vs 850.
Spec comparison
Sensor
| Spec | Leica - SL3 | Sony - α6700 |
|---|---|---|
| Sensor sizeⓘ | Full Framelead | APS-C |
| Megapixels | 60 MPlead | 26 MP |
| Max ISO | 100000lead | 32000 |
Video
| Spec | Leica - SL3 | Sony - α6700 |
|---|---|---|
| Max video | 8Klead | 4K120 |
| RAW video | truelead | false |
| Log profileⓘ | true | true |
Autofocus
| Spec | Leica - SL3 | Sony - α6700 |
|---|---|---|
| AF pointsⓘ | 779lead | 759 |
| Eye AFⓘ | true | true |
| In-body stabilizationⓘ | true | true |
Body & Controls
| Spec | Leica - SL3 | Sony - α6700 |
|---|---|---|
| Weight | 850 g | 493 glead |
| Weather sealedⓘ | true | true |
| Dual card slotsⓘ | truelead | false |
Spec-level deep dives
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