Sony A7 III
full-frame · 2018
Sony A7S III
full-frame · 2020
Sony A7S III takes it — here’s why.
In our weighted Specdex score, Sony A7 III lands at 88 and Sony A7S III at 91. That puts Sony A7S III ahead by 3 points — a narrow margin driven mostly by its strengths in the categories below.
Pick Sony A7 III 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 88).
Autofocus
Sony A7S IIICompared on the autofocus sub-score
Sony A7S III leads on autofocus (89 vs 86).
Ergonomics
TieCompared on the ergonomics sub-score
Effectively tied — neither pulls a 2-point weighted lead.
Value for money
Sony A7 IIISpecdex score per dollar at MSRP
Sony A7 III more score per dollar ($1,998 vs $3,498).
Score breakdown
Specs side-by-side
| Spec | Sony A7 III | Sony A7S III |
|---|---|---|
| Format | full-frame | full-frame |
| Release year | 2018 | 2020 |
Sony A7 III
- +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: Sony A7 III vs Sony A7S III
Which is better, Sony A7 III or Sony A7S III? +
Sony A7S III scores 91 on our weighted rubric — ahead by 3. Your best pick depends on the sub-scores above.
Is Sony A7 III worth the price? +
At $1,998, Sony A7 III delivers a Specdex score of 88 — 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 Sony A7 III 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, Sony A7 III or Sony A7S III? +
Sony A7S III — leads on photo (91 vs 88). Compared on the photo sub-score.
Which is better for autofocus, Sony A7 III or Sony A7S III? +
Sony A7S III — leads on autofocus (89 vs 86). Compared on the autofocus sub-score.