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A1 II vs Sony RX1R III

Quick take: The Sony RX1R III has the highest resolution at 61MP; the Sony RX1R III is the most affordable; only the A1 II is weather sealed.

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?

A1 II — Professional Sports, Wildlife & High-Resolution Studio Work: The most complete camera ever made — 50MP, 30fps, 8K, and the world's best EVF in a single flagship body.

Who should buy what
A1 II (2024)
is the right camera for you if…
  • Professional sports and wildlife photographers who need 30fps, 50MP, and the best AF available
  • Commercial and advertising photographers who demand 50MP resolution alongside pro video specs
  • Photojournalists who need a single body capable of handling every assignment
  • Sony system shooters ready to invest in the absolute best
Full specificationsthe better value in each row is highlighted
Specification A1 IISony · 2024Sony RX1R IIISony · 2025
Price £5,699£3,899Best
Sensor 50.1MP full-frame stacked BSI CMOS61MP full-frame Exmor R BSI CMOS
Resolution 50.1MP61.0MPBest
Video 8K/30p, 4K/120p 10-bit, S-Log34K/30p, 10-bit
Autofocus AI subject recognition — human, animal, bird, insect, vehicle, aircraft, trainHybrid phase-detect AF (693 points) with eye detection
Stabilisation 8.5-stop IBIS (with in-lens OSS)No stabilisation
Burst Rate 30fps electronic (with full AF/AE), 10fps mechanicalBest5fps
Battery Life ~530 shots (CIPA)Best300 shots (CIPA, LCD)
Weight 743g (body only)496g (with battery and card)Best
Dimensions 136.1 × 96.9 × 82.9mm—
Weather Sealed YesBestNot weather sealed
Viewfinder EVF 0.9× 9.44M-dot — the highest resolution EVF availableEVF, 2.36M dots
Screen 3.2" fully articulating touchscreen, 2.1M dotsTilting touchscreen
Mount Sony E-mount (full-frame)Fixed 35mm f/2 Zeiss Sonnar lens
Memory Cards Dual CFexpress Type A / SD UHS-II slotsSingle SD (UHS-II)
Connectivity USB-C 3.2 Gen 2, Wi-Fi 6GHz, Bluetooth 5.3, HDMI full-sizeUSB-C, 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
A1 II
Sony RX1R III
Portrait
9.0/10
5.9/10
Street
6.6/10
7.6/10
Travel
6.6/10
6.1/10
Wedding & Events
8.7/10
5.7/10
Vlogging & Video
6.6/10
—
Filmmaking
8.2/10
5.3/10
Documentary
8.3/10
5.5/10
Sports & Action
9.3/10
—
Landscape
8.0/10
5.7/10
Wildlife
9.2/10
—
Casual
5.3/10
4.6/10
Food
8.5/10
6.3/10
Macro
8.1/10
4.8/10
Architecture
8.4/10
6.0/10
Astrophotography
7.2/10
6.2/10

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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