Camera Comparison
Sony a9 vs Sony a9 II
The bottom line
These two are closely matched. The differences below are where they diverge — weigh the ones that map to how you actually shoot, and let price and handling break the tie.
Choose the Sony a9 II if…
- ✓You shoot in low light or indoors — AF that focuses down to -4 EV gives it the edge after dark.
- ✓You work outdoors — it's weather-sealed for rain and dust, the other isn't.
Where they differ
- ›Durability: the Sony a9 II is weather-sealed against dust and rain; the other isn't.
Frequently asked
Is the Sony a9 or the Sony a9 II better?
These two are closely matched. The differences below are where they diverge — weigh the ones that map to how you actually shoot, and let price and handling break the tie.
Who should choose the Sony a9 II?
Choose the Sony a9 II if you shoot in low light or indoors — AF that focuses down to -4 EV gives it the edge after dark. Choose it if you work outdoors — it's weather-sealed for rain and dust, the other isn't.
What is the main difference between the Sony a9 and the Sony a9 II?
Durability: the Sony a9 II is weather-sealed against dust and rain; the other isn't.
| Product | ||
|---|---|---|
| Imaging | ||
| Sensor Type | Stacked CMOS | BSI Stacked CMOS |
| Sensor Size | Full-Frame | Full-Frame |
| Image Processor | BIONZ X | BIONZ X |
| Effective Resolution | 24.2 MP | 24.2 MP |
| Lens Mount | Sony E | Sony E |
| Exposure Control | ||
| ISO Range (Native) | 50 – 51200 | 100 – 51200 |
| ISO Range (Extended) | 25 – 204800 | 50 – 204800 |
| Mechanical Shutter | 1/8000 | 1/8000 |
| Electronic Shutter | 1/32000 | 1/32000 |
| Flash Sync Speed | 1/250 | 1/250 |
| Built-in Flash | No | No |
| Still Image Capture | ||
| Continuous Shooting | 20 fps | 20 fps |
| Video Capture | ||
| Max Resolution | 4K | 4K |
| 8K Recording | − | − |
| 4K Recording | Up to 30p | Up to 30p |
| 1080p Recording | Up to 120p | Up to 120p |
| 10-bit Internal | Yes | Yes |
| Recording Limit | 29 min | 29 min |
| Log Profiles | S-Log3 / HLG | S-Log3 / HLG / S-Cinetone |
| Built-in Mic | Stereo | Stereo |
| Headphone Jack | Yes | Yes |
| Mic Input | Yes | Yes |
| HDMI Output | Micro (Type D) | Full-size (Type A) |
| Focus | ||
| Phase Detect Points | 693 | 693 |
| Contrast Detect Points | 425 | 425 |
| Low Light AF | -3 EV | -4 EV |
| Eye AF | Yes | Yes |
| Animal AF | Yes | Yes |
| Vehicle AF | No | No |
| Viewfinder | ||
| EVF Type | OLED | OLED |
| EVF Resolution | 3.69M dots | 3.69M dots |
| EVF Magnification | 0.78x | 0.78x |
| Monitor | ||
| LCD Size | 3" | 3" |
| LCD Resolution | 1.44M dots | 1.44M dots |
| LCD Type | Tilting | Tilting |
| Touch Screen | Yes | Yes |
| Interface | ||
| Wi-Fi | Wi-Fi 5 | Wi-Fi 5 |
| Bluetooth | v4.2 | v4.2 |
| USB | USB-C 3.1 Gen 1 | USB-C 3.2 |
| Memory Card Slots | 2x SD UHS-II | 2x SD UHS-II |
| GPS | No | No |
| General | ||
| Price (MSRP) | $4,499 | $4,499 |
| Body Material | Magnesium Alloy | Magnesium Alloy |
| Dimensions | 126.9×95.6×63.0 mm | 128.9×96.4×77.5 mm |
| Weight | 673g (1.48 lb) | 678g (1.49 lb) |
| Weather Sealed | No | Yes |
| In-Body Stabilization | Yes | Yes |
| Battery Life (EVF) | 650 shots | 500 shots |
| Battery Life (LCD) | 840 shots | 690 shots |
| Battery Type | NP-FZ100 | NP-FZ100 |
