Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Canon - EOS R50 | Sony - α7 IV |
|---|---|---|
| Weight | 375 g | 658 g |
| Megapixels | 24 MP | 33 MP |
| AF points | 651 | 759 |
| In-body stabilization | false | true |
| Log profile | false | true |
| Sensor size | APS-C | Full Frame |
Between the EOS R50 and α7 IV, the EOS R50 comes out ahead in weight, while the α7 IV wins on megapixels / af points. Overall, the EOS R50 scores 65.6 and the α7 IV scores 70.4 on our Mars Score.
Which should you buy?
The α7 IV edges ahead on the Mars Score (65.6 vs 70.4), but the 4.8-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the EOS R50 if you carry the device everywhere and weight or thickness has been the deciding factor before. The biggest gaps in its favor are weight. The single most decisive one: Weight — 283.00 g less. 375 vs 658.
Pick the α7 IV if you care most about megapixels / af points. Its strongest claims are megapixels, af points, in-body stabilization, among others. The single most decisive one: Megapixels — 37.50% more. 33 MP vs 24 MP.
There are no meaningful ties on the headline specs — every popular-comparison metric has a winner.
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 R50 or Sony - α7 IV?
Sony - α7 IV leads the current Mars Score by 4.8 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 R50 if…
Canon - EOS R50 has the measurable edge on weight g.
Choose Sony - α7 IV if…
Sony - α7 IV has the measurable edge on megapixels, af points, has ibis.
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 R50 wins
- ▲Weight — 283.00 g less. 375 vs 658.
Why Sony - α7 IV wins
- ▲Megapixels — 37.50% more. 33 MP vs 24 MP.
- ▲AF points — 16.59% more. 759 vs 651.
- ▲Has In-body stabilization.
- ▲Has Log profile.
- ▲Sensor size: Full Frame (vs APS-C).
- ▲Max video: 4K60 (vs 4K30).
Spec comparison
Sensor
| Spec | Canon - EOS R50 | Sony - α7 IV |
|---|---|---|
| Sensor sizeⓘ | APS-C | Full Framelead |
| Megapixels | 24 MP | 33 MPlead |
| Max ISO | 32000 | 51200lead |
Video
| Spec | Canon - EOS R50 | Sony - α7 IV |
|---|---|---|
| Max video | 4K30 | 4K60lead |
| RAW video | false | false |
| Log profileⓘ | false | truelead |
Autofocus
| Spec | Canon - EOS R50 | Sony - α7 IV |
|---|---|---|
| AF pointsⓘ | 651 | 759lead |
| Eye AFⓘ | true | true |
| In-body stabilizationⓘ | false | truelead |
Body & Controls
| Spec | Canon - EOS R50 | Sony - α7 IV |
|---|---|---|
| Weight | 375 glead | 658 g |
| Weather sealedⓘ | false | truelead |
| Dual card slotsⓘ | false | truelead |