Between the SL3 and α1 II, the SL3 comes out ahead in megapixels and af points, while the α1 II wins on weight. Overall, the SL3 scores 70.8 and the α1 II scores 64.4 on our Mars Score.
Which should you buy?
The SL3 edges ahead on the Mars Score (70.8 vs 64.4), but the 6.4-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the SL3 if you care most about megapixels and af points. The biggest gaps in its favor are megapixels, af points.
Pick the α1 II 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 sensor size, max video, in-body stabilization, 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 — 20.00% more. 60 MP vs 50 MP.
- ▲AF points — 2.64% more. 779 vs 759.
Why Sony - α1 II wins
- ▲Weight — 107.00 g less. 743 vs 850.
Spec comparison
Sensor
| Spec | Leica - SL3 | Sony - α1 II |
|---|---|---|
| Sensor sizeⓘ | Full Frame | Full Frame |
| Megapixels | 60 MPlead | 50 MP |
| Max ISO | 100000 | 102400lead |
Video
| Spec | Leica - SL3 | Sony - α1 II |
|---|---|---|
| Max video | 8K | 8K |
| RAW video | true | true |
| Log profileⓘ | true | true |
Autofocus
| Spec | Leica - SL3 | Sony - α1 II |
|---|---|---|
| AF pointsⓘ | 779lead | 759 |
| Eye AFⓘ | true | true |
| In-body stabilizationⓘ | true | true |
Body & Controls
| Spec | Leica - SL3 | Sony - α1 II |
|---|---|---|
| Weight | 850 g | 743 glead |
| Weather sealedⓘ | true | true |
| Dual card slotsⓘ | true | true |
Frequently asked
Spec-level deep dives
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