Sony A1 vs A9ii
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Sony A9ii vs Sony A1 - Which one to choose and why?
Why choose the Sony A1?
Newer camera
January 2021 vs. October 2019
More megapixels
50.1Mp vs. 24.6Mp
Better processor
BIONZ XR vs. BIONZ X
More compact
129×97×70 mm vs. 129×96×78 mm
9% smaller body
53.4 in3 / 875 cm3 vs. 58.89 in3 / 965 cm3
Better burst (electr.)
30 fps vs. 20 fps
Better viewfinder resolution
9.44 M-dot vs. 3.69 M-dot
More sensitive low-light sensor
-4 EV vs. -3 EV
More Focus points
759 vs. 693
Higher max video resolution
8K UHD 30 fps vs. 4K UHD 30 fps
In December 2024, Sony revealed the successor to this camera, the Sony A1 II, featuring improved autofocus, better noise management and the addition of a more powerful processor incorporating AI!.
Why choose the Sony A9ii?
4 years after its release, Sony decides to release the Sony A9III, a great improvement especially regarding burst rate, video and memory.
Technical specifications - Sony A1 vs Sony A9ii
General
| Sony A1 | Sony A9ii | ||
Release Date | January 2021 | VS | October 2019 |
Mount | FE | VS | FE |
Definition | 50.1 Mp | VS | 24.6 Mp |
Sensor Size | Full Frame | VS | Full Frame |
Image Stabilization | Yes | VS | Yes |
ISO Sensitivity | 100 - 32 000 | VS | 100 - 51 200 |
Extended ISO | 50 - 102 400 | VS | 100 - 204 800 |
Card Slots | 2 | VS | 2 |
Card Type | 1 x SD (UHS-II) 1 x CF Express Type A | VS | 1 x SD (UHS-II) 1 x SD (UHS-II) |
Processor | BIONZ XR | VS | BIONZ X |
Recommended Price | 6 198$ / 5524£ / 6 499€ | VS | 4 500$ / 4249£ / 4 999€ |
Viewfinder Features
| Sony A1 | Sony A9ii | ||
Resolution | 9.44 M-dot | VS | 3.69 M-dot |
Magnification | 0.9x | VS | 0.78x |
Autofocus Features
| Sony A1 | Sony A9ii | ||
Sensibilidad AF | -4 / 20 EV | VS | -3 / 20 EV |
Number of Focus Points | 759 | VS | 693 |
Video
| Sony A1 | Sony A9ii | ||
Maximum Resolution | 8K UHD 30 i/s 4K DCI 120 i/s 4K UHD 120 i/s 1080p 240 i/s | VS | 4K UHD 30 i/s 1080p 120 i/s |
Recording Format | VS | ||
Recording Time Limit | 780 min | VS | - |
DxO Score
| Sony A1 | Sony A9ii | ||
General | 98 | VS | 93 |
Portrait | 25.9 | VS | 25.0 |
Landscape | 14.5 | VS | 14.0 |
Sports | 3 163 | VS | 3 434 |
Physical Characteristics
| Sony A1 | Sony A9ii | ||
Weather-Sealed | Yes | VS | Yes |
Battery Type | NP-FZ100 | VS | NP-FZ100 |
Weight | 1.62 lb / 737 g | VS | 1.49 lb / 678 g |
Dimensions (W×H×D)
| 5.1 × 3.8 × 2.8" 129 × 97 × 70 mm | VS | 5.1 × 3.8 × 3.1" 129 × 96 × 78 mm |
Volume | 53.4 in3 / 875 cm3 | VS | 58.89 in3 / 965 cm3 |
Viewfinder Battery Life
| 430 images | VS | 500 images |
LCD Battery Life | 530 images | VS | 690 images |
Built-in Flash
| No | VS | No |
Maximum Flash Sync Speed | 1/400s | VS | 1/250s |
Min. Shutter Speed | 30s | VS | 30s |
Max. Shutter Speed (Mechanical) | 1/8 000s | VS | 1/8 000s |
Max. Shutter Speed (Electronic) | 1/32 000s | VS | 1/32 000s |
Max. Burst Rate (Mechanical) | - | VS | 10 fps |
Max. Burst Rate (Electronic) | 30 fps | VS | 20 fps |
RAW Buffer | 80 images | VS | 131 images |
Screen Features
| Sony A1 | Sony A9ii | ||
Type | Tilting | VS | Tilting |
Resolution | 1.44 M-dot | VS | 1.44 M-dot |
Diagonal | 2.95" / 7.5 cm | VS | 2.95" / 7.5 cm |
Touchscreen | Yes | VS | Yes |
Optional Features
| Sony A1 | Sony A9ii | ||
Wi-Fi / Bluetooth | Yes / Yes | VS | Yes / Yes |
Headphone Jack | Yes | VS | Yes |
USB Version | USB-C 3.2 | VS | USB-C 3.2 |
GPS | No | VS | No |
Time Lapse | Yes | VS | No |
Recommended lenses
Check recommended lenses for these cameras
Suggested Accessories
For Sony A1
For Sony A9ii
Others VS to check
Sony A1
Detailed comparison by Sylvain PONS
As a photography enthusiast, I've spent a lot of time exploring, comparing and analysing these cameras' features to help you make the right choice!
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Release Date
Mount
Definition
Sensor Size
Image Stabilization
ISO Sensitivity
Card Slots
Processor
Recommended Price
Magnification
Sensibilidad AF
Number of Focus Points
Maximum Resolution
Recording Format
Recording Time Limit
General
Portrait
Landscape
Sports
Weather-Sealed
Battery Type
Weight
Dimensions (W×H×D)
Volume
Viewfinder Battery Life
Built-in Flash
Maximum Flash Sync Speed
Min. Shutter Speed
Max. Burst Rate (Mechanical)
RAW Buffer
Diagonal
Touchscreen
Wi-Fi / Bluetooth
Headphone Jack
USB Version
GPS
Time Lapse










