How To Choose Between Them
Compare the winners above against your own priorities. A lead in one category only matters if you use it.
Camera Comparison
Sony
Sony a1 II vs Sony a9 III
Short AnswerSony a9 III wins more of the spec-sheet categories, but the right pick depends on what you shoot.
By Jennifer K. Telfer · Updated · 1 Min Read
VS
Winner By Photographic Discipline
ResolutionSony a1 II
Continuous ShootingSony a9 III
Image StabilizationSony a1 II
WeightSony a9 III
Launch PriceSony a9 III
Key Technical Performance Deltas
Resolution (MP)
A50.1
B24.6
Electronic Burst (fps)
A30
B120
Stabilization (Stops)
A8.5
B8
Weight (g, Lower Is Lighter)
A743
B703
Form Factor
136.1 × 96.9 × 82.9 mm
136.1 × 96.9 × 82.9 mm
Reasons To Choose Each
Choose Sony a1 II If…
- Higher resolution (50.1 MP vs 24.6 MP)
- Higher image stabilization (8.5 stops vs 8 stops)
Choose Sony a9 III If…
- Higher continuous shooting (120 fps vs 30 fps)
- Lighter body (703 g vs 743 g)
- Costs less at launch ($5999 vs $6500)
Comprehensive Specification Table
| Spec | Sony a1 II | Sony a9 III |
|---|---|---|
| Sensor | ||
| Format | Full Frame | Full Frame |
| Megapixels | 50.1 MP | 24.6 MP |
| Sensor Type | Stacked CMOS | Stacked CMOS |
| Max Native ISO | 32000 | 25600 |
| Stabilization | 8.5 Stops | 8 Stops |
| Autofocus | ||
| AF Points | — | 759 |
| Low-Light AF | -4 EV | -5 EV |
| Speed | ||
| Mechanical Burst | 10 fps | — |
| Electronic Burst | 30 fps | 120 fps |
| Fastest Mechanical Shutter | 1/8000 | — |
| Fastest Electronic Shutter | 1/32000 | 1/80000 |
| Viewfinder & Screen | ||
| Viewfinder | EVF | EVF |
| EVF Resolution | 9.44M | 9.44M |
| LCD Size | 3.2" | 3.2" |
| LCD Type | Vari-angle | Vari-angle |
| Video | ||
| Best Video | 8K 30p | 4K 120p |
| Internal Color | 10-bit 4:2:2 | 10-bit 4:2:2 |
| Log Profile | S-Log3 | S-Log3 |
| Body | ||
| Weight | 743 g | 703 g |
| Card Slots | 2 | 2 |
| Battery (CIPA) | 520 Shots | — |
| Weather Sealed | Yes | Yes |
| Launch Price | 6500 | 5999 |
Amber marks the stronger value. Figures are manufacturer specifications.