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A6600 vs A7R III

Quick take: The A7R III has the highest resolution at 42MP; 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.

A7R III — Landscape, Studio & Commercial Photography: The camera that converted professionals to mirrorless — 42MP, IBIS, and 10fps in a body that still competes today.

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
A7R III (2017)
is the right camera for you if…
  • Landscape and studio photographers who need 42MP resolution at a used-price discount vs A7R IV
  • Canon/Nikon DSLR professionals considering a mirrorless switch at a lower investment
  • Commercial and product photographers who want full-frame resolution with IBIS for handheld work
  • Portrait photographers who want the sharpest possible full-frame files for large print work
Full specificationsthe better value in each row is highlighted
Specification A6600Sony · 2019A7R IIISony · 2017
Price £1,299Best£1,799
Sensor 24.2MP APS-C Exmor CMOS42.4MP full-frame BSI Exmor R CMOS
Resolution 24.2MP42.4MPBest
Video 4K/30p (no crop), 1080p/120p4K/30p (full-frame readout), 1080p/120p
Autofocus Real-time Eye AF, real-time tracking — inherited from A9399 phase-detect + 425 contrast AF points — real-time Eye AF
Stabilisation 5-axis IBIS — 5 stops5-axis IBIS — 5.5 stops
Burst Rate 11fps continuous with AF/AEBest10fps with AF/AE tracking
Battery Life ~810 shots (CIPA) — large NP-FZ100 batteryBest~650 shots (CIPA)
Weight 503g (body only)Best650g (body only)
Dimensions 120 × 66.9 × 69.3mm126.9 × 95.6 × 73.7mm
Weather Sealed YesYes
Viewfinder EVF, 2.36M dots, 0.70× magnificationEVF, 3.69M dots, 0.78× magnification
Screen 3.0" touchscreen, tilting3.0" touchscreen, tilting
Mount Sony E-mount (APS-C)Sony FE mount (full-frame E-mount)
Memory Cards Single SD UHS-I slotDual SD slots (one UHS-II)
Connectivity USB-C, Bluetooth, Wi-Fi, 3.5mm mic & headphone jacksUSB-C, Bluetooth, Wi-Fi, 3.5mm mic jack

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
A7R III
Portrait
7.1/10
7.8/10
Street
7.3/10
6.1/10
Travel
6.8/10
6.1/10
Wedding & Events
6.3/10
7.5/10
Vlogging & Video
6.0/10
—
Filmmaking
6.0/10
6.3/10
Documentary
7.0/10
6.7/10
Sports & Action
7.1/10
7.3/10
Landscape
5.9/10
7.4/10
Wildlife
7.8/10
7.6/10
Casual
6.0/10
4.7/10
Food
6.5/10
7.0/10
Macro
5.8/10
6.2/10
Architecture
5.8/10
7.5/10
Astrophotography
6.5/10
7.0/10

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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