Sony a7R II vs Sony a7S III
The bottom line
Same line, different generation: the Sony a7S III (2020) moves ahead on burst speed (10fps vs 5fps) and 4K frame rate (120p vs 30p). The Sony a7R II is still the value pick at $3,199 ($3,499 for the Sony a7S III). If those newer features aren't ones you'll actually use, the Sony a7R II gives you most of the experience for less.
Choose the Sony a7R II if…
- ✓You want maximum detail for landscapes, studio or large prints — 42.4MP resolves noticeably more than 12.1MP and gives more cropping latitude.
Choose the Sony a7S III if…
- ✓You shoot action, sports or wildlife — 10fps burst and 759 phase-detect points keeps up with fast, erratic movement where 5fps would drop frames.
- ✓You shoot video seriously — it brings smoother 120p 4K vs 30p, no per-clip recording limit (vs a 29-min cap) and both mic and headphone jacks for monitored audio.
- ✓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: 42.4MP on the Sony a7R II vs 12.1MP — more detail and crop room, at the cost of larger files.
- ›Video: the Sony a7S III is the stronger video tool — 4K up to 120p, 10-bit internal and Log.
- ›Price: the Sony a7R II launched at $3,199, $300 under the Sony a7S III — money that could go toward glass.
- ›Burst: the Sony a7S III shoots 10fps to the Sony a7R II's 5fps — the gap that decides whether you nail the peak moment in sports and wildlife.
- ›Card slots: the Sony a7S III has dual slots for instant backup — the reliability paid work depends on.
- ›Durability: the Sony a7S III is weather-sealed against dust and rain; the other isn't.
Frequently asked
Is the Sony a7R II or the Sony a7S III better?
Same line, different generation: the Sony a7S III (2020) moves ahead on burst speed (10fps vs 5fps) and 4K frame rate (120p vs 30p). The Sony a7R II is still the value pick at $3,199 ($3,499 for the Sony a7S III). If those newer features aren't ones you'll actually use, the Sony a7R II gives you most of the experience for less.
Who should choose the Sony a7R II?
Choose the Sony a7R II if you want maximum detail for landscapes, studio or large prints — 42.4MP resolves noticeably more than 12.1MP and gives more cropping latitude.
Who should choose the Sony a7S III?
Choose the Sony a7S III if you shoot action, sports or wildlife — 10fps burst and 759 phase-detect points keeps up with fast, erratic movement where 5fps would drop frames. Choose it if you shoot video seriously — it brings smoother 120p 4K vs 30p, no per-clip recording limit (vs a 29-min cap) and both mic and headphone jacks for monitored audio. 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 a7R II and the Sony a7S III?
Resolution: 42.4MP on the Sony a7R II vs 12.1MP — more detail and crop room, at the cost of larger files.
| Product | ||
|---|---|---|
| Imaging | ||
| Sensor Type | BSI CMOS | BSI CMOS |
| Sensor Size | Full-Frame | Full-Frame |
| Image Processor | BIONZ X | BIONZ XR |
| Effective Resolution | 42.4 MP | 12.1 MP |
| Lens Mount | Sony E | Sony E |
| Exposure Control | ||
| ISO Range (Native) | 100 – 25600 | 80 – 102400 |
| ISO Range (Extended) | 50 – 102400 | 40 – 409600 |
| Mechanical Shutter | 1/8000 | 1/8000 |
| Electronic Shutter | 1/8000 | 1/8000 |
| Flash Sync Speed | 1/250 | 1/250 |
| Built-in Flash | No | No |
| Still Image Capture | ||
| Continuous Shooting | 5 fps | 10 fps |
| Video Capture | ||
| Max Resolution | 4K | 4K |
| 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-Log2 / S-Log3 / HLG | S-Log3 / HLG / S-Cinetone |
| Built-in Mic | Stereo | Stereo |
| Headphone Jack | No | Yes |
| Mic Input | Yes | Yes |
| HDMI Output | Micro (Type D) | Full-size (Type A) |
| Focus | ||
| Phase Detect Points | 399 | 759 |
| Contrast Detect Points | − | − |
| Low Light AF | -2 EV | -6 EV |
| Eye AF | Yes | Yes |
| Animal AF | Yes | Yes |
| Vehicle AF | No | No |
| Viewfinder | ||
| EVF Type | OLED | OLED |
| EVF Resolution | 2.36M dots | 9.44M dots |
| EVF Magnification | 0.78x | 0.91x |
| Monitor | ||
| LCD Size | 3" | 3" |
| LCD Resolution | 1.23M dots | 1.44M dots |
| LCD Type | Tilting | Vari-Angle |
| Touch Screen | Yes | Yes |
| Interface | ||
| Wi-Fi | Wi-Fi 5 | Wi-Fi 5 |
| Bluetooth | v4.2 | v5 |
| USB | Micro USB 2.0 | USB-C 3.2 |
| Memory Card Slots | 1x SD UHS-I | 2x CFexpress Type A / SD UHS-II |
| GPS | No | No |
| General | ||
| Price (MSRP) | $3,199 | $3,499 |
| Body Material | Magnesium Alloy | Magnesium Alloy |
| Dimensions | 126.9×95.7×60.3 mm | 128.9×96.9×80.8 mm |
| Weight | 625g (1.38 lb) | 699g (1.54 lb) |
| Weather Sealed | No | Yes |
| In-Body Stabilization | Yes | Yes |
| Battery Life (EVF) | 290 shots | 510 shots |
| Battery Life (LCD) | 340 shots | 600 shots |
| Battery Type | NP-FW50 | NP-FZ100 |
