Sony A6400
APS-C · 2019
Sony Alpha 1
full-frame · 2021
Sony Alpha 1 takes it — here’s why.
In our weighted Specdex score, Sony A6400 lands at 78 and Sony Alpha 1 at 94. That puts Sony Alpha 1 ahead by 16 points — a decisive margin driven mostly by its strengths in the categories below.
Pick Sony A6400 if…
- ✓Mature system, great used market
- ✓Proven lens lineup
- ✓Often on sale
Pick Sony Alpha 1 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 Alpha 1Compared on the photo sub-score
Sony Alpha 1 leads on photo (94 vs 78).
Ergonomics
TieCompared on the ergonomics sub-score
Effectively tied — neither pulls a 2-point weighted lead.
Autofocus
Sony Alpha 1Compared on the autofocus sub-score
Sony Alpha 1 leads on autofocus (92 vs 74).
Value for money
Sony A6400Specdex score per dollar at MSRP
Sony A6400 more score per dollar ($899 vs $6,498).
Score breakdown
Specs side-by-side
| Spec | Sony A6400 | Sony Alpha 1 |
|---|---|---|
| Format | APS-C | full-frame |
| Release year | 2019 | 2021 |
Sony A6400
- +Mature system, great used market
- +Proven lens lineup
- +Often on sale
- −Older AF system
- −Heavier than modern mirrorless
- −Firmware updates trailed off
Sony Alpha 1
- +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 A6400 vs Sony Alpha 1
Which is better, Sony A6400 or Sony Alpha 1? +
Sony Alpha 1 scores 94 on our weighted rubric — ahead by 16. Your best pick depends on the sub-scores above.
Is Sony A6400 worth the price? +
At $899, Sony A6400 delivers a Specdex score of 78 — strongest in ergonomics.
Is Sony Alpha 1 worth the price? +
At $6,498, Sony Alpha 1 delivers a Specdex score of 94 — strongest in photo.
Does Sony A6400 or Sony Alpha 1 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 A6400 or Sony Alpha 1? +
Sony Alpha 1 — leads on photo (94 vs 78). Compared on the photo sub-score.
Which is better for autofocus, Sony A6400 or Sony Alpha 1? +
Sony Alpha 1 — leads on autofocus (92 vs 74). Compared on the autofocus sub-score.