Decision tools · Compare
A7 III vs Sony FX5
Quick take: The A7 III has the highest resolution at 24MP; 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.
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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 | A7 IIISony · 2018 | Sony FX5Sony · 2026 |
|---|---|---|
| Price | £1,099Best | £4,699 |
| Sensor | 24.2MP Full-Frame Exmor R BSI CMOS | 16.6MP full-frame stacked Exmor RS CMOS |
| Resolution | 24.2MPBest | 16.6MP |
| Video | 4K/30p (6K oversampled), 1080p/120p slow-motion | 5K/60p open-gate, 4K/120p, internal RAW/X-OCN, 10-bit Log, triple base ISO |
| Autofocus | Phase-detect, 693 points, real-time Eye AF & animal AF | AI-powered hybrid phase-detect AF (759 points) with subject tracking |
| Stabilisation | 5-axis IBIS, 5 stops | IBIS with Dynamic Active Mode |
| Burst Rate | 10fps with AF/AE tracking | 10fps |
| Battery Life | ~710 shots (CIPA)Best | ~105 min actual recording, ~170 min continuous (LCD) |
| Weight | 565g (body only)Best | 734g (with battery and card) |
| Dimensions | 126.9 × 95.6 × 73.7mm | — |
| Weather Sealed | Yes | Yes |
| Viewfinder | EVF, 2.36M dots, 0.78× magnification | Optional detachable EVF (DVF-EL1), OLED |
| Screen | 3.0" tilting touchscreen, 921k dots | Fully articulating touchscreen (4-axis arm) |
| Mount | Sony E-mount | Sony E-mount |
| Memory Cards | Dual SD (UHS-II slot 1, UHS-I slot 2) | CFexpress Type A + SDXC (dual) |
| Connectivity | USB-C (USB 3.2), Wi-Fi, Bluetooth, NFC | USB-C, full-size HDMI, Wi-Fi, Bluetooth |
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
A7 III
Sony FX5
Portrait
7.6/10
6.9/10
Street
6.2/10
5.3/10
Travel
6.3/10
6.2/10
Wedding & Events
7.5/10
7.0/10
Filmmaking
6.4/10
8.7/10
Documentary
6.8/10
8.3/10
Sports & Action
7.3/10
6.8/10
Landscape
6.2/10
5.1/10
Wildlife
7.5/10
6.8/10
Casual
5.4/10
5.1/10
Food
6.6/10
7.4/10
Macro
5.8/10
5.2/10
Architecture
6.1/10
6.1/10
Astrophotography
7.4/10
6.7/10
Vlogging & Video
—
6.1/10
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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