Decision tools · Compare
S1R II vs A7 III
Quick take: The S1R II has the highest resolution at 44MP; the A7 III is the most affordable.
16 specs side by side·15 genres scored·UK prices from Wex Photo Video and Clifton Cameras
How to read this page. Highlighted cells win that row on the spec alone. Genre scores are the engine's base scores (enthusiast, photo and video); Camera Match re-weights them for your level and priorities. Price buttons are affiliate links; the price you pay is the same.
Price buttons are affiliate links — GearFrame may earn a commission at no extra cost to you. It never affects a score. Learn more
Verdictwhich should you buy?
A7 III — All-Round Photography & Video: Still one of the best all-round cameras money can buy — particularly strong used. The A7 III proved that full-frame doesn't have to mean compromises, and nothing at this price point has meaningfully beaten it.
Who should buy what
A7 III (2018)
is the right camera for you if…
- Enthusiast photographers upgrading from APS-C for the first time
- Working photographers who need reliable AF and weather sealing
- Anyone who shoots in low light regularly
- Hybrid shooters needing both stills and video performance
Full specificationsthe better value in each row is highlighted
| Specification | S1R IILumix · 2025 | A7 IIISony · 2018 |
|---|---|---|
| Price | £2,699 | £1,099Best |
| Sensor | 44.3MP full-frame BSI CMOS | 24.2MP Full-Frame Exmor R BSI CMOS |
| Resolution | 44.3MPBest | 24.2MP |
| Video | 8K/30p (first for Lumix), 4K/120p (1.1x crop), 10-bit | 4K/30p (6K oversampled), 1080p/120p slow-motion |
| Autofocus | Phase-hybrid AF (779 points) with AI subject detection | Phase-detect, 693 points, real-time Eye AF & animal AF |
| Stabilisation | 8-stop IBIS with Dual I.S. 2 | 5-axis IBIS, 5 stops |
| Burst Rate | 40fps electronicBest | 10fps with AF/AE tracking |
| Battery Life | 350 shots (CIPA, LCD) | ~710 shots (CIPA)Best |
| Weight | 820g (with battery and card) | 565g (body only)Best |
| Dimensions | — | 126.9 × 95.6 × 73.7mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | EVF, 5.76M dots | EVF, 2.36M dots, 0.78× magnification |
| Screen | Fully articulating touchscreen | 3.0" tilting touchscreen, 921k dots |
| Mount | L-mount | Sony E-mount |
| Memory Cards | CFexpress Type B + SD (UHS-II) | Dual SD (UHS-II slot 1, UHS-I slot 2) |
| Connectivity | USB-C, full-size HDMI, Wi-Fi, Bluetooth | USB-C (USB 3.2), Wi-Fi, Bluetooth, NFC |
Wins the row — price, resolution, burst, battery, weight and sealing are compared; text specs aren't ranked.
How they score by genreengine base scores out of 10
Genre
S1R II
A7 III
Portrait
8.8/10
7.6/10
Street
6.3/10
6.2/10
Travel
6.2/10
6.3/10
Wedding & Events
8.4/10
7.5/10
Vlogging & Video
6.1/10
—
Filmmaking
7.7/10
6.4/10
Documentary
7.9/10
6.8/10
Sports & Action
8.3/10
7.3/10
Landscape
7.7/10
6.2/10
Wildlife
8.3/10
7.5/10
Casual
5.2/10
5.4/10
Food
8.3/10
6.6/10
Macro
8.8/10
5.8/10
Architecture
8.1/10
6.1/10
Astrophotography
7.1/10
7.4/10
Scores come from the same engine as Camera Match: verified specifications weighted by what each genre needs, with documented adjustments. The product page and this table show the enthusiast base score. See how scores are calculated →
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