Sony a1 II vs Sony RX1R III
Compare key differences and full specifications to find the camera that suits your photography.
Key differences
- Year: Sony a1 II: 2024 ; Sony RX1R III: 2025
- Weight: Sony a1 II: 743 g ; Sony RX1R III: 498 g
- Sensor size: Sony a1 II: 35.9 x 24 mm ; Sony RX1R III: 35.7 x 23.8 mm
- Sensor resolution: Sony a1 II: 8669 x 5779 ; Sony RX1R III: 9566 x 6377
- Effective megapixels: Sony a1 II: 50.10 ; Sony RX1R III: 61.00
- Max. video mode: Sony a1 II: 7680x4320 (30p/25p/24p) ; Sony RX1R III: 3840x2160 (30p/25p/24p)
- Battery: Sony a1 II: NP-FZ100 lithium-ion battery ; Sony RX1R III: Rechargeable battery pack NP-FW50
Best for
Larger prints and more cropping detail: Sony RX1R III (61.00).
| Specification | Sony a1 II | Sony RX1R III |
|---|---|---|
| General | ||
| Brand | Sony | Sony |
| Model | a1 II | RX1R III |
| Year | 2024 | 2025 |
| Body | ||
| Dimensions | 136.1 x 96.9 x 82.9 mm | 113.3 x 67.9 x 87.5 mm |
| Weight | 743 g | 498 g |
| Sensor | ||
| Sensor type | CMOS | CMOS |
| Sensor size | 35.9 x 24 mm | 35.7 x 23.8 mm |
| Sensor resolution | 8669 x 5779 | 9566 x 6377 |
| Crop factor | 1 | 1.01 |
| Total megapixels | 50.50 | 62.50 |
| Effective megapixels | 50.10 | 61.00 |
| Image | ||
| Max. image resolution | 8640 x 5760 | 9504 x 6336 |
| ISO | Auto, 100-32000 (extends to 50-102400) | Auto, 100-32000 (extends to 50-102400) |
| Exposure & Shutter | ||
| Min. shutter speed | 30 sec | 30 sec |
| Max. shutter speed | 1/32000 sec | 1/4000 sec |
| Metering | Multi, Center-weighted, Highlight-weighted, Average, Spot | Multi, Center-weighted, Highlight-weighted, Average, Spot |
| Exposure compensation | ±5 EV (in 1/3 EV, 1/2 EV steps) | ±5 EV (in 1/3 EV, 1/2 EV steps) |
| Aperture priority | Yes | Yes |
| Shutter priority | Yes | Yes |
| White balance presets | 7 | 9 |
| Video | ||
| Max. video mode | 7680x4320 (30p/25p/24p) | 3840x2160 (30p/25p/24p) |
| Display & Viewfinder | ||
| Screen size | 3.2" | 3" |
| Screen resolution | 2,095,104 dots | 2,359,296 dots |
| Viewfinder | Electronic | Electronic |
| Storage & Connectivity | ||
| Storage types | CFexpress Type A / SD (UHS-II) | SD/SDHC/SDXC (UHS-II) |
| USB | USB 3.2 (10 GBit/sec) | USB 3.2 (10 GBit/sec) |
| Power | ||
| Battery | NP-FZ100 lithium-ion battery | Rechargeable battery pack NP-FW50 |
| Lens & Focus | ||
| Max aperture | — | f2 |
| Max. aperture (35mm equiv.) | — | f2 |
| Focal length (35mm equiv.) | — | 35 mm |
| Digital zoom | Yes | Yes |
| Normal focus range | — | 24 cm |
| Macro focus range | — | 14 cm |