Upgrade Guide
Sony A7S→Sony A6400
Is it worth upgrading? Spec analysis, key improvements, and our verdict.
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Strong upgrade
The A6400 improves across 4 key areas at a reasonable price gap. Most A7S owners will notice the difference.
What's new in the A6400
-
Resolution24MP vs 12MP (+12MP)
-
StabilisationIBIS added — significant for handheld and video
-
Burst rate11fps mechanical, 8fps with AF tracking vs 5fps
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Generation5 years newer (2019 vs 2014)
Unchanged or similar
-
Weather sealingNot present in new body
Suitability by genre
| Genre | A7S | A6400 | |
|---|---|---|---|
| Astrophotography | — | ||
| Vlogging & Video | — | ||
| Street | +2.0 | ||
| Travel | — | ||
| Portrait | +2.0 | ||
| Landscape | — | ||
| Sports & Action | — | ||
| Video | — | ||
| Wildlife | — |
Full spec comparison
| Spec | A7S | A6400 | |
|---|---|---|---|
| Price | £600 | £899 | |
| Released | 2014 | 2019 | ↑ |
| Sensor | 12.2MP Full-Frame BSI CMOS | 24.2MP APS-C Exmor CMOS BSI | |
| Resolution | 12MP | 24MP | ↑ |
| Video | 1080p/60p internal, 4K via HDMI (external recorder) | 4K/30p (6K oversampled, no crop), 1080p/120p slow-motion | |
| Autofocus | Phase-detect / contrast-detect hybrid AF | Phase-detect, 425 points, real-time Eye AF & animal AF | |
| Stabilisation | None | None (no IBIS) | |
| Burst Rate | 5fps | 11fps mechanical, 8fps with AF tracking | ↑ |
| Battery Life | ~370 shots (CIPA) | ~410 shots (CIPA) | ↑ |
| Weight | 474g (with battery and card) | 403g (body, battery, card) | ↑ |
| Weather Sealed | Yes | No | ↓ |
| Viewfinder | Electronic, 2.36M dots, 0.71× magnification | EVF, 2.36M dots, 0.70× magnification | |
| Screen | 3.0" tilting LCD, 1.23M dots | 3.0" tilting touchscreen, 180° flip for selfie/vlog, 921k dots | |
| Mount | Sony FE (full-frame E-mount) | Sony E-mount | |
| Memory Cards | Single SD / MemoryStick PRO Duo slot | Single SD UHS-I |
Compare side-by-side
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