Sony a7R IV vs Sony FX5
The bottom line
There's a real price gap here: the Sony a7R IV at $3,499 versus the Sony FX5 at $4,899. The question is whether those advantages are ones you'll use often enough to justify the premium — if not, the cheaper body is the smart buy.
Choose the Sony a7R IV if…
- ✓You shoot video seriously — it brings both mic and headphone jacks for monitored audio.
- ✓You want maximum detail for landscapes, studio or large prints — 61MP resolves noticeably more than 16.6MP and gives more cropping latitude.
- ✓You photograph moving subjects — it adds AF subject detection for animals that the other body lacks.
- ✓You're budget-conscious — it launched at $3,499, about $1,400 less, freeing money for lenses.
Choose the Sony FX5 if…
- ✓You shoot video seriously — it brings smoother 120p 4K vs 30p and no per-clip recording limit (vs a 29-min cap).
Where they differ
- ›Resolution: 61MP on the Sony a7R IV vs 16.6MP — more detail and crop room, at the cost of larger files.
- ›Price: the Sony a7R IV launched at $3,499, $1,400 under the Sony FX5 — money that could go toward glass.
- ›Weight: the Sony a7R IV is 665g (1.47 lb) vs 734g (1.62 lb) — 69g you'll feel on a long day out.
Frequently asked
Is the Sony a7R IV or the Sony FX5 better?
There's a real price gap here: the Sony a7R IV at $3,499 versus the Sony FX5 at $4,899. The question is whether those advantages are ones you'll use often enough to justify the premium — if not, the cheaper body is the smart buy.
Who should choose the Sony a7R IV?
Choose the Sony a7R IV if you shoot video seriously — it brings both mic and headphone jacks for monitored audio. Choose it if you want maximum detail for landscapes, studio or large prints — 61MP resolves noticeably more than 16.6MP and gives more cropping latitude. Choose it if you photograph moving subjects — it adds AF subject detection for animals that the other body lacks. Choose it if you're budget-conscious — it launched at $3,499, about $1,400 less, freeing money for lenses.
Who should choose the Sony FX5?
Choose the Sony FX5 if you shoot video seriously — it brings smoother 120p 4K vs 30p and no per-clip recording limit (vs a 29-min cap).
What is the main difference between the Sony a7R IV and the Sony FX5?
Resolution: 61MP on the Sony a7R IV vs 16.6MP — more detail and crop room, at the cost of larger files.
| Product | ||
|---|---|---|
| Imaging | ||
| Sensor Type | BSI CMOS | Stacked CMOS |
| Sensor Size | Full-Frame | Full-Frame |
| Image Processor | BIONZ X | BIONZ XR2 |
| Effective Resolution | 61 MP | 16.6 MP |
| Lens Mount | Sony E | Sony E |
| Exposure Control | ||
| ISO Range (Native) | 100 – 32000 | − |
| ISO Range (Extended) | 50 – 102400 | − |
| Mechanical Shutter | 1/8000 | − |
| Electronic Shutter | 1/8000 | − |
| Flash Sync Speed | 1/250 | − |
| Built-in Flash | No | No |
| Still Image Capture | ||
| Continuous Shooting | 10 fps | − |
| Video Capture | ||
| Max Resolution | 4K | 5K |
| 8K Recording | − | − |
| 4K Recording | Up to 30p | Up to 120p |
| 1080p Recording | Up to 120p | Up to 240p |
| 10-bit Internal | Yes | Yes |
| Recording Limit | 29 min | No limit |
| Log Profiles | S-Log3 / HLG | S-Cinetone / S-Log3 / S-Gamut3.Cine |
| Built-in Mic | Stereo | − |
| Headphone Jack | Yes | No |
| Mic Input | Yes | No |
| HDMI Output | Micro (Type D) | Full-size (Type A) |
| Focus | ||
| Phase Detect Points | 567 | − |
| Contrast Detect Points | − | − |
| Low Light AF | -3 EV | − |
| Eye AF | Yes | Yes |
| Animal AF | Yes | No |
| Vehicle AF | No | No |
| Viewfinder | ||
| EVF Type | OLED | − |
| EVF Resolution | 5.76M dots | − |
| EVF Magnification | 0.78x | − |
| Monitor | ||
| LCD Size | 3.2" | 3.5" |
| LCD Resolution | 1.44M dots | 2.76M dots |
| LCD Type | Tilting | Multi-Angle |
| Touch Screen | Yes | Yes |
| Interface | ||
| Wi-Fi | Wi-Fi 5 | Wi-Fi 6E |
| Bluetooth | v4.2 | − |
| USB | USB-C 3.1 Gen 1 | USB-C x2 |
| Memory Card Slots | 2x SD UHS-II | 2x CFexpress Type A / SD UHS-II |
| GPS | No | No |
| General | ||
| Price (MSRP) | $3,499 | $4,899 |
| Body Material | Magnesium Alloy | Magnesium Alloy |
| Dimensions | 128.9×96.4×77.5 mm | 132.3x79.0x86.95 mm |
| Weight | 665g (1.47 lb) | 734g (1.62 lb) |
| Weather Sealed | Yes | Yes |
| In-Body Stabilization | Yes | Yes |
| Battery Life (EVF) | 530 shots | − |
| Battery Life (LCD) | 670 shots | − |
| Battery Type | NP-FZ100 | NP-SA100 |
