Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Panasonic - Lumix S5 II | Sony - α1 II |
|---|---|---|
| Megapixels | 24 MP | 50 MP |
| Weight | 740 g | 743 g |
| AF points | 779 | 759 |
| Max video | 6K | 8K |
Between the Lumix S5 II and α1 II, the Lumix S5 II comes out ahead in weight / af points, while the α1 II wins on megapixels / max video. Overall, the Lumix S5 II scores 74.4 and the α1 II scores 79.6 on our Mars Score.
Which should you buy?
The α1 II edges ahead on the Mars Score (74.4 vs 79.6), but the 5.2-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the Lumix S5 II if you carry the device everywhere and weight or thickness has been the deciding factor before. The biggest gaps in its favor are weight, af points. The single most decisive one: Weight — 3.00 g less. 740 vs 743.
Pick the α1 II if you care most about megapixels / max video. Its strongest claims are megapixels, max video. The single most decisive one: Megapixels — 108.33% more. 50 MP vs 24 MP.
Both ship with comparable sensor size, in-body stabilization, log profile, so those specs do not separate the two — focus on the differences below.
Bottom line: the α1 II is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Which should you buy: Panasonic - Lumix S5 II or Sony - α1 II?
Sony - α1 II leads the current Mars Score by 5.2 points.The more useful decision is the trade-off behind that result: compare megapixels, max video, weight against the way you will actually use the product.
Choose Panasonic - Lumix S5 II if…
Panasonic - Lumix S5 II has the measurable edge on weight g, af points.
Choose Sony - α1 II if…
Sony - α1 II has the measurable edge on 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 Panasonic - Lumix S5 II wins
- ▲Weight — 3.00 g less. 740 vs 743.
- ▲AF points — 2.64% more. 779 vs 759.
Why Sony - α1 II wins
- ▲Megapixels — 108.33% more. 50 MP vs 24 MP.
- ▲Max video: 8K (vs 6K).
Spec comparison
Sensor
| Spec | Panasonic - Lumix S5 II | Sony - α1 II |
|---|---|---|
| Sensor sizeⓘ | Full Frame | Full Frame |
| Megapixels | 24 MP | 50 MPlead |
| Max ISO | 51200 | 102400lead |
Video
| Spec | Panasonic - Lumix S5 II | Sony - α1 II |
|---|---|---|
| Max video | 6K | 8Klead |
| RAW video | false | truelead |
| Log profileⓘ | true | true |
Autofocus
| Spec | Panasonic - Lumix S5 II | Sony - α1 II |
|---|---|---|
| AF pointsⓘ | 779lead | 759 |
| Eye AFⓘ | true | true |
| In-body stabilizationⓘ | true | true |
Body & Controls
| Spec | Panasonic - Lumix S5 II | Sony - α1 II |
|---|---|---|
| Weight | 740 glead | 743 g |
| Weather sealedⓘ | true | true |
| Dual card slotsⓘ | true | true |