Between the Z f and α9 III, the Z f comes out ahead in several specs, while the α9 III wins on af points and weight. Overall, the Z f scores 46 and the α9 III scores 46 on our Mars Score.
Which should you buy?
These two are evenly matched on the broad strokes, with the decision sitting on which individual spec advantages weigh more for your use.
The Z f doesn't pull ahead on any single popular-comparison spec — its strengths sit in the spec table groups rather than the headline advantages.
Pick the α9 III if you carry the device everywhere and weight or thickness has been the deciding factor before. Its strongest claims are af points, weight, max video.
Both ship with comparable sensor size, megapixels, in-body stabilization, so those specs don't separate the two — focus on the differences below.
Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity tells you both are well-rounded; the differences are about trade-offs, not quality.
Why Nikon - Z f wins
- No decisive advantages.
Why Sony - α9 III wins
- ▲AF points — 153.85% more. 759 vs 299.
- ▲Weight — 7.00 g less. 703 vs 710.
- ▲Max video: 4K120 (vs 4K60).
Spec comparison
Sensor
| Spec | Nikon - Z f | Sony - α9 III |
|---|---|---|
| Sensor sizeⓘ | Full Frame | Full Frame |
| Megapixels | 24 MP | 24 MP |
| Max ISO | 64000lead | 51200 |
Video
| Spec | Nikon - Z f | Sony - α9 III |
|---|---|---|
| Max video | 4K60 | 4K120lead |
| RAW video | false | truelead |
| Log profileⓘ | true | true |
Autofocus
| Spec | Nikon - Z f | Sony - α9 III |
|---|---|---|
| AF pointsⓘ | 299 | 759lead |
| Eye AFⓘ | true | true |
| In-body stabilizationⓘ | true | true |
Body & Controls
| Spec | Nikon - Z f | Sony - α9 III |
|---|---|---|
| Weight | 710 g | 703 glead |
| Weather sealedⓘ | true | true |
| Dual card slotsⓘ | false | truelead |
Frequently asked
Spec-level deep dives
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