Sony a1 II vs Sony FX3
The bottom line
Same line, different generation: the Sony a1 II (2024) moves ahead on burst speed (30fps vs 10fps), resolution (50.1MP vs 12.1MP) and 8K video. The Sony FX3 is still the value pick at $3,899 ($6,499 for the Sony a1 II). If those newer features aren't ones you'll actually use, the Sony FX3 gives you most of the experience for less.
Choose the Sony a1 II if…
- ✓You shoot action, sports or wildlife — 30fps burst plus dedicated subject-tracking AF keeps up with fast, erratic movement where 10fps would drop frames.
- ✓You shoot video seriously — it brings 8K capture (up to 30p).
- ✓You want maximum detail for landscapes, studio or large prints — 50.1MP resolves noticeably more than 12.1MP and gives more cropping latitude.
Choose the Sony FX3 if…
- ✓You're budget-conscious — it launched at $3,899, about $2,600 less, freeing money for lenses.
- ✓You vlog or shoot handheld solo — the fully-articulating screen flips to face you and there's a mic input for clean audio.
- ✓You shoot in low light or indoors — a higher native ISO ceiling (102,400) and AF that focuses down to -6 EV give it the edge after dark.
Where they differ
- ›Resolution: 50.1MP on the Sony a1 II vs 12.1MP — more detail and crop room, at the cost of larger files.
- ›Burst: the Sony a1 II shoots 30fps to the Sony FX3's 10fps — the gap that decides whether you nail the peak moment in sports and wildlife.
- ›Price: the Sony FX3 launched at $3,899, $2,600 under the Sony a1 II — money that could go toward glass.
Frequently asked
Is the Sony a1 II or the Sony FX3 better?
Same line, different generation: the Sony a1 II (2024) moves ahead on burst speed (30fps vs 10fps), resolution (50.1MP vs 12.1MP) and 8K video. The Sony FX3 is still the value pick at $3,899 ($6,499 for the Sony a1 II). If those newer features aren't ones you'll actually use, the Sony FX3 gives you most of the experience for less.
Who should choose the Sony a1 II?
Choose the Sony a1 II if you shoot action, sports or wildlife — 30fps burst plus dedicated subject-tracking AF keeps up with fast, erratic movement where 10fps would drop frames. Choose it if you shoot video seriously — it brings 8K capture (up to 30p). Choose it if you want maximum detail for landscapes, studio or large prints — 50.1MP resolves noticeably more than 12.1MP and gives more cropping latitude.
Who should choose the Sony FX3?
Choose the Sony FX3 if you're budget-conscious — it launched at $3,899, about $2,600 less, freeing money for lenses. Choose it if you vlog or shoot handheld solo — the fully-articulating screen flips to face you and there's a mic input for clean audio. Choose it if you shoot in low light or indoors — a higher native ISO ceiling (102,400) and AF that focuses down to -6 EV give it the edge after dark.
What is the main difference between the Sony a1 II and the Sony FX3?
Resolution: 50.1MP on the Sony a1 II vs 12.1MP — more detail and crop room, at the cost of larger files.
| Product | ||
|---|---|---|
| Imaging | ||
| Sensor Type | BSI Stacked CMOS | BSI CMOS |
| Sensor Size | Full-Frame | Full-Frame |
| Image Processor | BIONZ XR | BIONZ XR |
| Effective Resolution | 50.1 MP | 12.1 MP |
| Lens Mount | Sony E | Sony E |
| Exposure Control | ||
| ISO Range (Native) | 100 – 32000 | 80 – 102400 |
| ISO Range (Extended) | 50 – 102400 | 40 – 409600 |
| Mechanical Shutter | 1/8000 | − |
| Electronic Shutter | 1/32000 | 1/8000 |
| Flash Sync Speed | 1/400 | 1/250 |
| Built-in Flash | No | No |
| Still Image Capture | ||
| Continuous Shooting | 30 fps | 10 fps |
| Video Capture | ||
| Max Resolution | 8K | 4K |
| 8K Recording | Up to 30p | − |
| 4K Recording | Up to 120p | Up to 120p |
| 1080p Recording | Up to 240p | Up to 240p |
| 10-bit Internal | Yes | Yes |
| Recording Limit | No limit | No limit |
| Log Profiles | S-Log3 / HLG / S-Cinetone | S-Log3 / HLG / S-Cinetone |
| Built-in Mic | Stereo | Stereo (XLR via top handle) |
| Headphone Jack | Yes | Yes |
| Mic Input | Yes | Yes |
| HDMI Output | Full-size (Type A) | Full-size (Type A) |
| Focus | ||
| Phase Detect Points | 759 | 759 |
| Contrast Detect Points | − | − |
| Low Light AF | -4 EV | -6 EV |
| Eye AF | Yes | Yes |
| Animal AF | Yes | Yes |
| Vehicle AF | Yes | No |
| Viewfinder | ||
| EVF Type | OLED | − |
| EVF Resolution | 9.44M dots | − |
| EVF Magnification | 0.9x | − |
| Monitor | ||
| LCD Size | 3.2" | 3" |
| LCD Resolution | 2.10M dots | 1.44M dots |
| LCD Type | 4-Axis Tilting | Vari-Angle |
| Touch Screen | Yes | Yes |
| Interface | ||
| Wi-Fi | Wi-Fi 6 | Wi-Fi 5 |
| Bluetooth | v5.3 | v5 |
| USB | USB-C 3.2 Gen 2 | USB-C 3.2 |
| Memory Card Slots | 2x CFexpress Type A / SD UHS-II | 2x CFexpress Type A / SD UHS-II |
| GPS | No | No |
| General | ||
| Price (MSRP) | $6,499 | $3,899 |
| Body Material | Magnesium Alloy | Magnesium Alloy |
| Dimensions | 136.1×96.9×82.9 mm | 129.7×77.8×84.5 mm |
| Weight | 743g (1.64 lb) | 715g (1.58 lb) |
| Weather Sealed | Yes | Yes |
| In-Body Stabilization | Yes | Yes |
| Battery Life (EVF) | 520 shots | − |
| Battery Life (LCD) | 420 shots | 600 shots |
| Battery Type | NP-FZ100 | NP-FZ100 |
