A6400vs A7R VI
Sony
A7R VI (2025)
Starting from £4399 new
Best for Studio, landscape and commercial photographers needing maximum resolution
View A7R VI
GearScore™ Verdict — Which should you buy?
Content Creation & Vlogging — A6400 (2019): The best value APS-C Sony you can buy — especially used. Real-time Eye AF at this price point was transformative when it launched and still makes it one of the most reliable autofocus systems in the lineup.
Studio, Landscape And Commercial Photographers Needing Maximum Resolution — A7R VI (2025): The A7R VI cements its place as the resolution flagship of the Sony full-frame range — 61MP, AI-driven autofocus, and 8K video make it as capable for video and action work as it is for studio and landscape photography. The price reflects its position at the top of the lineup, but the capability is hard to match.
Who should buy what
A6400 (2019)
- Vloggers and content creators who need a flip screen and reliable AF
- Photographers upgrading from a compact or smartphone
- Beginners who want room to grow into a full E-mount lens ecosystem
- Anyone prioritising autofocus performance at an accessible price
A7R VI (2025)
- Studio and commercial photographers who need maximum resolution for large prints and heavy cropping
- Landscape photographers who want best-in-class dynamic range and detail
- Hybrid shooters who need 8K video alongside a 61MP stills sensor
- Professionals upgrading from the A7R V who want faster AI-driven autofocus
Quick take: The a7r vi has the highest resolution at 61mp; the a6400 is the most affordable; only the a7r vi is weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | A6400 (2019) | A7R VI (2025) |
|---|---|---|
| Price | £899 | £4,399 |
| Sensor | 24.2MP APS-C Exmor CMOS BSI | 61MP full-frame stacked back-illuminated CMOS |
| Resolution | 24.2MP | 61.0MP |
| Video | 4K/30p (6K oversampled, no crop), 1080p/120p slow-motion | 8K 30fps, 4K 120fps oversampled |
| Autofocus | Phase-detect, 425 points, real-time Eye AF & animal AF | AI processing unit — subject recognition for people, animals, birds and vehicles across the frame |
| Stabilisation | None (no IBIS) | In-body 5-axis IS, up to 8.5 stops |
| Burst Rate | 11fps mechanical, 8fps with AF tracking | 8fps mechanical / 7fps electronic with full AF/AE tracking |
| Battery Life | ~410 shots (CIPA) | ~530 shots (CIPA, NP-FZ100) |
| Weight | 403g (body, battery, card) | 723g (body with battery and card) |
| Dimensions | 120.0 × 66.9 × 59.7mm | 131.3 × 96.9 × 82.8mm |
| Weather Sealed | No | Yes |
| Viewfinder | EVF, 2.36M dots, 0.70× magnification | EVF, 9.44M-dot, up to 120fps |
| Screen | 3.0" tilting touchscreen, 180° flip for selfie/vlog, 921k dots | 3.2-inch 4-axis multi-angle touchscreen, 3.69M-dot |
| Mount | Sony E-mount | Sony FE (full-frame E-mount) |
| Memory Cards | Single SD UHS-I | Dual slots — CFexpress Type A / SD (UHS-II) |
| Connectivity | Micro-USB, Wi-Fi, Bluetooth, NFC | USB-C (10Gbps), Wi-Fi 6E, Bluetooth 5.0, 2.5GbE |
Suitability by genre
| Genre | A6400 | A7R VI |
|---|---|---|
| Video | — | |
| Street | ||
| Portrait | ||
| Travel | ||
| Wildlife | ||
| Landscape | — | |
| Vlogging & Video | — | |
| Sports & Action | — | |
| Casual | — |
GearScore™ suitability scores are based on aggregated purchaser reviews weighted by photography genre. See how scores are calculated →
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Camera family history