GFX 100vs A6400
Fujifilm
GFX 100 (2019)
Starting from £4999 new
Best for Commercial, studio & landscape photography
View GFX 100
GearScore™ Verdict — Which should you buy?
Commercial, Studio & Landscape Photography — GFX 100 (2019): The world's first 100MP mirrorless with IBIS and phase-detect AF — the GFX 100 was a landmark in medium format, but its size and weight are professional-grade.
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
GFX 100 (2019)
- Commercial and advertising photographers who need extraordinary resolution
- Landscape photographers willing to carry a large body for maximum detail
- GFX system users who want the original 100MP body at a lower cost than GFX 100S
- Studio photographers who want the finest image quality the GFX system can offer
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 gfx 100 has the highest resolution at 102mp; the a6400 is the most affordable; only the gfx 100 is weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | GFX 100 (2019) | A6400 (2019) |
|---|---|---|
| Price | £4,999 | £899 |
| Sensor | 102MP Medium Format BSI CMOS (43.8 × 32.9mm) | 24.2MP APS-C Exmor CMOS BSI |
| Resolution | 102.0MP | 24.2MP |
| Video | 4K/30p, FHD/120p; F-Log support | 4K/30p (6K oversampled, no crop), 1080p/120p slow-motion |
| Autofocus | Phase-detect hybrid AF (first GFX with phase-detect), face/eye detection | Phase-detect, 425 points, real-time Eye AF & animal AF |
| Stabilisation | IBIS — up to 5.5 stops | None (no IBIS) |
| Burst Rate | 5fps | 11fps mechanical, 8fps with AF tracking |
| Battery Life | ~800 shots (CIPA, dual NP-T125 batteries in integrated grip) | ~410 shots (CIPA) |
| Weight | 1,400g (with battery and card) | 403g (body, battery, card) |
| Dimensions | 156.2 × 163.6 × 102.9mm | 120.0 × 66.9 × 59.7mm |
| Weather Sealed | Yes | No |
| Viewfinder | EVF, 5.76M dots, 0.77× magnification | EVF, 2.36M dots, 0.70× magnification |
| Screen | 3.2" fully articulating touchscreen | 3.0" tilting touchscreen, 180° flip for selfie/vlog, 921k dots |
| Mount | Fujifilm GFX (G-mount) | Sony E-mount |
| Memory Cards | Dual SD UHS-II slots | Single SD UHS-I |
| Connectivity | USB-C, Wi-Fi, Bluetooth, 3.5mm mic, headphone jack, HDMI | Micro-USB, Wi-Fi, Bluetooth, NFC |
Suitability by genre
| Genre | GFX 100 | A6400 |
|---|---|---|
| Portrait | ||
| Landscape | — | |
| Architecture | — | |
| Travel | ||
| Sports & Action | — | |
| Vlogging & Video | — | |
| Video | — | |
| Street | — | |
| Wildlife | — |
GearScore™ suitability scores are based on aggregated purchaser reviews weighted by photography genre. See how scores are calculated →
More comparisons with GFX 100
Camera family history