Sony A7S III
full-frame · 2020
Canon EOS R5
full-frame · 2020
Canon EOS R5 takes it — here’s why.
In our weighted Specdex score, Sony A7S III lands at 91 and Canon EOS R5 at 92. That puts Canon EOS R5 ahead by 1 points — a narrow margin driven mostly by its strengths in the categories below.
Pick Sony A7S III if…
- ✓Current-gen AF system
- ✓Proven lens ecosystem
- ✓Strong video + stills balance
Pick Canon EOS R5 if…
- ✓Current-gen AF system
- ✓Proven lens ecosystem
- ✓Strong video + stills balance
Winner by scenario
Derived from the sub-score breakdown · not a separate testPhoto
TieCompared on the photo sub-score
Effectively tied — neither pulls a 2-point weighted lead.
Autofocus
TieCompared on the autofocus sub-score
Effectively tied — neither pulls a 2-point weighted lead.
Video
TieCompared on the video sub-score
Effectively tied — neither pulls a 2-point weighted lead.
Value for money
TieSpecdex score per dollar at MSRP
Effectively tied — similar score-per-dollar at MSRP.
Score breakdown
Specs side-by-side
| Spec | Sony A7S III | Canon EOS R5 |
|---|---|---|
| Format | full-frame | full-frame |
| Release year | 2020 | 2020 |
Sony A7S III
- +Current-gen AF system
- +Proven lens ecosystem
- +Strong video + stills balance
- −Body price excludes lens
- −Heavy for travel (flagship)
- −Learning curve on menus
Canon EOS R5
- +Current-gen AF system
- +Proven lens ecosystem
- +Strong video + stills balance
- −Body price excludes lens
- −Heavy for travel (flagship)
- −Learning curve on menus
FAQ: Sony A7S III vs Canon EOS R5
Which is better, Sony A7S III or Canon EOS R5? +
Canon EOS R5 scores 92 on our weighted rubric — ahead by 1. Your best pick depends on the sub-scores above.
Is Sony A7S III worth the price? +
At $3,498, Sony A7S III delivers a Specdex score of 91 — strongest in photo.
Is Canon EOS R5 worth the price? +
At $3,899, Canon EOS R5 delivers a Specdex score of 92 — strongest in photo.
Does Sony A7S III or Canon EOS R5 last longer? +
Based on our long-term update and support ratings, both ship with multi-year support. Battery and reliability scores are visible in the breakdown above.