D6vs A6400
Nikon
D6 (2020)
Starting from £3200 new
Best for Professional Sports, Press & Wildlife Photography
View D6
GearScore™ Verdict — Which should you buy?
Professional Sports, Press & Wildlife Photography — D6 (2020): Nikon's final and finest DSLR — the D6 brought 105 all-cross-type AF points, 14fps, and built-in LAN to the F mount. The last word in optical viewfinder photography.
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.
Who should buy what
D6 (2020)
- Sports, wildlife, and press photographers who prefer an optical viewfinder
- Professional Nikon shooters with a substantial F-mount lens collection
- Photojournalists who need built-in LAN for wire transmission
- Nikon system professionals seeking a used flagship at under-new-price value
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
Quick take: The a6400 has the highest resolution at 24mp; the a6400 is the most affordable; only the d6 is weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | D6 (2020) | A6400 (2019) |
|---|---|---|
| Price | £3,200 | £899 |
| Sensor | 20.8MP full-frame BSI CMOS | 24.2MP APS-C Exmor CMOS BSI |
| Resolution | 20.8MP | 24.2MP |
| Video | 4K UHD 30fps | 4K/30p (6K oversampled, no crop), 1080p/120p slow-motion |
| Autofocus | Multi-CAM 3500FX III — 105 AF points, all cross-type | Phase-detect, 425 points, real-time Eye AF & animal AF |
| Stabilisation | — | None (no IBIS) |
| Burst Rate | 14fps mechanical | 11fps mechanical, 8fps with AF tracking |
| Battery Life | ~3580 shots (CIPA) | ~410 shots (CIPA) |
| Weight | 1450g (body only) | 403g (body, battery, card) |
| Dimensions | 160 × 163.5 × 92mm | 120.0 × 66.9 × 59.7mm |
| Weather Sealed | Yes | No |
| Viewfinder | OVF 0.72× magnification, 100% coverage | EVF, 2.36M dots, 0.70× magnification |
| Screen | 3.2" fixed touchscreen, 2.36M dots | 3.0" tilting touchscreen, 180° flip for selfie/vlog, 921k dots |
| Mount | Nikon F mount | Sony E-mount |
| Memory Cards | Dual CFexpress Type B / XQD slots | Single SD UHS-I |
| Connectivity | Wi-Fi, Bluetooth 4.2, Ethernet (built-in), USB 3.1 | Micro-USB, Wi-Fi, Bluetooth, NFC |
Suitability by genre
| Genre | D6 | A6400 |
|---|---|---|
| Sports & Action | — | |
| Wildlife | ||
| Wedding & Events | — | |
| Street | ||
| Portrait | ||
| Landscape | — | |
| Video | — | |
| Travel | — |
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