Canon EOS R8 · Body only
full-frame · 2023
Sony A7S III
full-frame · 2020
Sony A7S III takes it — here’s why.
In our weighted Specdex score, Canon EOS R8 · Body only lands at 86 and Sony A7S III at 91. That puts Sony A7S III ahead by 5 points — a decisive margin driven mostly by its strengths in the categories below.
Pick Canon EOS R8 · Body only if…
- ✓Current-gen AF system
- ✓Proven lens ecosystem
- ✓Strong video + stills balance
Pick Sony A7S III 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
Sony A7S IIICompared on the photo sub-score
Sony A7S III leads on photo (91 vs 86).
Autofocus
Sony A7S IIICompared on the autofocus sub-score
Sony A7S III leads on autofocus (89 vs 84).
Ergonomics
TieCompared on the ergonomics sub-score
Effectively tied — neither pulls a 2-point weighted lead.
Value for money
Canon EOS R8 · Body onlySpecdex score per dollar at MSRP
Canon EOS R8 · Body only more score per dollar ($1,499 vs $3,498).
Score breakdown
Specs side-by-side
| Spec | Canon EOS R8 · Body only | Sony A7S III |
|---|---|---|
| Format | full-frame | full-frame |
| Release year | 2023 | 2020 |
Canon EOS R8 · Body only
- +Current-gen AF system
- +Proven lens ecosystem
- +Strong video + stills balance
- −Body price excludes lens
- −Heavy for travel (flagship)
- −Learning curve on menus
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
FAQ: Canon EOS R8 · Body only vs Sony A7S III
Which is better, Canon EOS R8 · Body only or Sony A7S III? +
Sony A7S III scores 91 on our weighted rubric — ahead by 5. Your best pick depends on the sub-scores above.
Is Canon EOS R8 · Body only worth the price? +
At $1,499, Canon EOS R8 · Body only delivers a Specdex score of 86 — strongest in photo.
Is Sony A7S III worth the price? +
At $3,498, Sony A7S III delivers a Specdex score of 91 — strongest in photo.
Does Canon EOS R8 · Body only or Sony A7S III 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.
Which is better for photo, Canon EOS R8 · Body only or Sony A7S III? +
Sony A7S III — leads on photo (91 vs 86). Compared on the photo sub-score.
Which is better for autofocus, Canon EOS R8 · Body only or Sony A7S III? +
Sony A7S III — leads on autofocus (89 vs 84). Compared on the autofocus sub-score.