Sony A9 III · Body only
full-frame · 2024
Sony Alpha 7 IV
33 MP full-frame · 4K60 · Hybrid
Sony A9 III · Body only takes it — here’s why.
In our weighted Specdex score, Sony A9 III · Body only lands at 95 and Sony Alpha 7 IV at 92. That puts Sony A9 III · Body only ahead by 3 points — a narrow margin driven mostly by its strengths in the categories below.
Pick Sony A9 III · Body only if…
- ✓Current-gen AF system
- ✓Proven lens ecosystem
- ✓Strong video + stills balance
Pick Sony Alpha 7 IV if…
- ✓Great hybrid stills + video
- ✓Excellent AF with Real-time Tracking
- ✓Dual card slots
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
Sony Alpha 7 IVCompared on the autofocus sub-score
Sony Alpha 7 IV leads on autofocus (96 vs 93).
Video
TieCompared on the video sub-score
Effectively tied — neither pulls a 2-point weighted lead.
Value for money
Sony Alpha 7 IVSpecdex score per dollar at MSRP
Sony Alpha 7 IV more score per dollar ($2,498 vs $5,998).
Score breakdown
Specs side-by-side
| Spec | Sony A9 III · Body only | Sony Alpha 7 IV |
|---|---|---|
| Format | full-frame | — |
| Release year | 2024 | — |
| Sensor | — | 33 MP Exmor R CMOS |
| Mount | — | Sony E |
| Video | — | 4K60 (Super35), 4K30 full-frame |
| Stabilization | — | 5-axis IBIS |
Sony A9 III · 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 Alpha 7 IV
- +Great hybrid stills + video
- +Excellent AF with Real-time Tracking
- +Dual card slots
- −4K60 is Super 35 crop
- −Menus still dense
- −Heats with long 4K recording
FAQ: Sony A9 III · Body only vs Sony Alpha 7 IV
Which is better, Sony A9 III · Body only or Sony Alpha 7 IV? +
Sony A9 III · Body only scores 95 on our weighted rubric — ahead by 3. Your best pick depends on the sub-scores above.
Is Sony A9 III · Body only worth the price? +
At $5,998, Sony A9 III · Body only delivers a Specdex score of 95 — strongest in photo.
Is Sony Alpha 7 IV worth the price? +
At $2,498, Sony Alpha 7 IV delivers a Specdex score of 92 — strongest in autofocus.
Does Sony A9 III · Body only or Sony Alpha 7 IV 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 autofocus, Sony A9 III · Body only or Sony Alpha 7 IV? +
Sony Alpha 7 IV — leads on autofocus (96 vs 93). Compared on the autofocus sub-score.
Which is the better value, Sony A9 III · Body only or Sony Alpha 7 IV? +
Sony Alpha 7 IV — more score per dollar ($2,498 vs $5,998). Specdex score per dollar at MSRP.