Decision tools · Compare
GH7 vs A7S III
Quick take: The GH7 has the highest resolution at 25MP; the GH7 is the most affordable.
Where the GH7 wins
- Cheaper new: £1,699 vs £3,389
- Resolution: 25.2MP
- Burst Rate: 75fps (electronic), 14fps (mechanical)
- Weight: 535g (body only)
- Sports & Action: 8.6 vs 7.4
Where the A7S III wins
- Battery Life: ~600 shots (CIPA) / ~70min continuous 4K recording
- Street: 6.2 vs 5.7
- Travel: 6.0 vs 5.4
- Filmmaking: 8.2 vs 7.3
- Astrophotography: 7.8 vs 5.1
16 specs side by side·15 genres scored·UK prices from Wex Photo Video, Clifton Cameras, MPB, eBay and Amazon UK
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.
Sony
A7S III 2020
Best for Professional video & low-light filmmaking
£3389
new today at Wex Photo Video
Price buttons are affiliate links — GearFrame may earn a commission at no extra cost to you. It never affects a score. Learn more
Size comparedbody only, no lens · drawn to one scale
- GH7 138 × 102 × 92 mm · 805 g
- A7S III 129 × 97 × 81 mm · 699 g
The A7S III is 9 mm narrower, 5 mm shorter, 11 mm slimmer and 106 g lighter than the GH7.
Drawn to scale from the makers' dimensions (W × H × D). Front shown, depth on the slanted edge.
Verdictwhich should you buy?
GH7 — Video & Documentary: The GH7 is the GH series at its peak — phase-detect AF finally arrived, alongside 5.7K/60p open-gate, C4K/60p 10-bit 4:2:2, and ProRes RAW. A landmark video camera in the Micro Four Thirds format, and the most complete GH Panasonic has ever built.
A7S III — Professional Video & Low-Light Filmmaking: If video is your primary discipline, the A7S III is the camera. 4K/120p at 10-bit in a weather-sealed body with a 9.44M dot EVF is an extraordinary package. The 12MP sensor isn't limiting for video — and it's usable at ISO 409,600 in a pinch.
Who should buy what
GH7 (2024)
is the right camera for you if…
- Video professionals who want the best MFT camera ever made
- Documentary and event videographers who need reliable AF and great stabilisation
- Hybrid photographers who want high burst rates and serious video in one body
- GH5/GH6 owners ready for a major upgrade
A7S III (2020)
is the right camera for you if…
- Filmmakers and videographers who need 4K/120p at 10-bit
- Event videographers who shoot in dark venues regularly
- Documentary filmmakers who need reliable AF and weather sealing
- Hybrid shooters where video is primary and stills are secondary
Full specificationsthe better value in each row is highlighted
| Specification | GH7Lumix · 2024 | A7S IIISony · 2020 |
|---|---|---|
| Price | £1,699Best | £3,389 |
| Sensor | 25.2MP Live MOS Micro Four Thirds | 12.1MP Full-Frame BSI CMOS (12-bit, back-illuminated) |
| Resolution | 25.2MPBest | 12.1MP |
| Video | 5.7K/60p (open gate), C4K/60p 10-bit 4:2:2, ProRes RAW via HDMI | 4K/120p 10-bit, 4K/60p 10-bit S-Cinetone/S-Log3, 1080p/240p |
| Autofocus | Phase-detect + contrast-detect AF with subject recognition | Phase-detect, 759 points, real-time Eye AF (human & animal), subject recognition |
| Stabilisation | 5-axis Dual I.S. 2 (body + lens) | 5.5-stop IBIS |
| Burst Rate | 75fps (electronic), 14fps (mechanical)Best | 10fps mechanical |
| Battery Life | ~370 shots (CIPA) | ~600 shots (CIPA) / ~70min continuous 4K recordingBest |
| Weight | 535g (body only)Best | 699g (with battery and card) |
| Dimensions | 138.4 × 102.3 × 91.6mm | 128.9 × 96.9 × 80.8mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | Electronic, 3.68M dots, 0.76× | OLED EVF, 9.44M dots, 0.90× magnification — best EVF Sony has made |
| Screen | 3.0" fully articulating touchscreen, 1.84M dots | 3.0" vari-angle touchscreen, 1.44M dots |
| Mount | Micro Four Thirds | Sony E-mount |
| Memory Cards | Dual slot: CFexpress Type B + SD UHS-II | Dual CFexpress Type A / SD UHS-II (both slots) |
| Connectivity | USB-C, Wi-Fi, Bluetooth, HDMI | USB-C (USB 3.2 Gen 2), full-size HDMI, Wi-Fi 6, 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
GH7
A7S III
Portrait
7.2/10
7.5/10
Street
5.7/10
6.2/10
Travel
5.4/10
6.0/10
Wedding & Events
7.4/10
7.5/10
Vlogging & Video
6.1/10
5.9/10
Filmmaking
7.3/10
8.2/10
Documentary
7.4/10
7.7/10
Sports & Action
8.6/10
7.4/10
Landscape
6.0/10
5.5/10
Wildlife
8.5/10
7.5/10
Casual
4.9/10
4.9/10
Food
6.9/10
6.8/10
Macro
7.8/10
5.8/10
Architecture
6.3/10
5.5/10
Astrophotography
5.1/10
7.8/10
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 →
Next
More comparisons with GH7
Camera family history