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A6600 vs A7S III

Quick take: The A6600 has the highest resolution at 24MP; the A6600 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?

A6600 — Hybrid Photography, Travel & Video On Sony Aps-C: The APS-C Sony that has everything — IBIS, real-time Eye AF, excellent battery life, and 4K/30p in a weather-sealed body.

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
A6600 (2019)
is the right camera for you if…
  • Sony APS-C shooters who need IBIS — the only A6000-series body to offer it
  • Hybrid photographers who want the best of stills and video from a compact E-mount body
  • A6400 or A6100 owners who want IBIS and a headphone jack for video work
  • Travel photographers who need compact full-featured weather-sealed performance
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 A6600Sony · 2019A7S IIISony · 2020
Price £1,299Best£3,389
Sensor 24.2MP APS-C Exmor CMOS12.1MP Full-Frame BSI CMOS (12-bit, back-illuminated)
Resolution 24.2MPBest12.1MP
Video 4K/30p (no crop), 1080p/120p4K/120p 10-bit, 4K/60p 10-bit S-Cinetone/S-Log3, 1080p/240p
Autofocus Real-time Eye AF, real-time tracking — inherited from A9Phase-detect, 759 points, real-time Eye AF (human & animal), subject recognition
Stabilisation 5-axis IBIS — 5 stops5.5-stop IBIS
Burst Rate 11fps continuous with AF/AEBest10fps mechanical
Battery Life ~810 shots (CIPA) — large NP-FZ100 batteryBest~600 shots (CIPA) / ~70min continuous 4K recording
Weight 503g (body only)Best699g (with battery and card)
Dimensions 120 × 66.9 × 69.3mm128.9 × 96.9 × 80.8mm
Weather Sealed YesYes
Viewfinder EVF, 2.36M dots, 0.70× magnificationOLED EVF, 9.44M dots, 0.90× magnification — best EVF Sony has made
Screen 3.0" touchscreen, tilting3.0" vari-angle touchscreen, 1.44M dots
Mount Sony E-mount (APS-C)Sony E-mount
Memory Cards Single SD UHS-I slotDual CFexpress Type A / SD UHS-II (both slots)
Connectivity USB-C, Bluetooth, Wi-Fi, 3.5mm mic & headphone jacksUSB-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
A6600
A7S III
Portrait
7.1/10
7.5/10
Street
7.3/10
6.2/10
Travel
6.8/10
6.0/10
Wedding & Events
6.3/10
7.5/10
Vlogging & Video
6.0/10
5.9/10
Filmmaking
6.0/10
8.2/10
Documentary
7.0/10
7.7/10
Sports & Action
7.1/10
7.4/10
Landscape
5.9/10
5.5/10
Wildlife
7.8/10
7.5/10
Casual
6.0/10
4.9/10
Food
6.5/10
6.8/10
Macro
5.8/10
5.8/10
Architecture
5.8/10
5.5/10
Astrophotography
6.5/10
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 →

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