Canon EOS R5 vs Sony A7S III
Real-world comparison — specs, sensor size, autofocus, video, ownership reality. Adjust the workflow lens below to see how each body lands for travel, hybrid, wildlife, or studio use.
Visual
Estimated
Ranked
Canon EOS R5
Full-frame / 620g
Sony A7S III
Full-frame / 620g
Workflow lens
Canon EOS R5 is the stronger fit for travel and everyday carry.
Canon EOS R5 leads on AF confidence by 22 points.
Canon EOS R5 leads on value and market timing by 16 points.
Camera size studio
Relative body dimensions
Front, back and top views are drawn from external dimensions so the size relationship stays proportional.
View
Mode
Canon EOS R5
Front view / 132 x 92mm
132 x 92 x 72mm
Sony A7S III
Front view / 132 x 92mm
132 x 92 x 72mm
Width
Height
Depth
Weight
External dimensions and carry delta
Canon EOS R5 and Sony A7S III share the same external size profile in the current data model.
Canon EOS R5
Sony A7S III
Class benchmarks
Sensor comparison
Sensor size to scale
×1 crop
×1 crop
All 2 use Full-frame sensors — sensor size is a wash here.
Decision matrix
Scores tuned for travel
Highlighted specs
Only specs that change the decision
Sensor
45MP full-frame
Sensor
12.1MP full-frame BSI
Video
8K/30p
Video
4K/120p 10-bit
Community comparison
Owner consensus · not specsCommunity comparison appears once owners vote on these products — 6 more votes across the pair will unlock it.
Where to buy
Ready to commit?
Check current pricing and availability from a major retailer. We may earn a commission on purchases through these links — it never changes what we recommend or the price you pay.
Canon
Canon EOS R5
Brand & model search · Amazon CA
Sony
Sony A7S III
Brand & model search · Amazon CA
Affiliate links earn GearAtlas a small commission at no cost to you. How we use affiliate links.
Common questions
Answers from this comparison
Drawn from the products' specs and category facts — same logic the comparison engine uses for its verdict.
Is the Canon EOS R5 better than the Sony A7S III?
Neither product is universally better — the right answer depends on what you shoot. Walk the use-case verdicts in the comparison studio above to see which body lines up with your specific work.
Which is better for travel — the Canon EOS R5 or the Sony A7S III?
For travel, the combination of weight, weather sealing, and lens flexibility matters more than headline specs. The carry-envelope module in the comparison above breaks down the practical kit weight of each body with a normal lens attached.