GFX 50S IIvs OM-D E-M10 IVvs A6400
Which should you buy?
Studio & Portrait Specialists — GFX 50S II (2021): Medium format quality at the most accessible price ever — 51MP detail and tonal richness no APS-C or full-frame body can replicate.
Travel & Everyday — OM-D E-M10 IV (2020): Compact Micro Four Thirds body with built-in IBIS — ideal for travellers who want stability without bulk.
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 50S II (2021)
- You want to experience medium format without a five-figure investment
- You shoot landscape, architecture, or portraits where resolution and tonal depth matter
- You're in the Fujifilm ecosystem and want to step up to a larger sensor
OM-D E-M10 IV (2020)
- You're new to mirrorless and want a small, uncomplicated first camera to learn on
- You want excellent in-body stabilisation to steady handheld video and shake-prone shooting
- You're drawn to the Micro Four Thirds ecosystem and want to start at the entry level
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 50s ii has the highest resolution at 51mp; the om-d e-m10 iv is the most affordable; only the gfx 50s ii is weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | GFX 50S II (2021) | OM-D E-M10 IV (2020) | A6400 (2019) |
|---|---|---|---|
| Price | £2,999 | £469 | £899 |
| Sensor | 51.4MP Medium Format GFX 44×33mm BSI CMOS | 20.3MP Micro Four Thirds Live MOS | 24.2MP APS-C Exmor CMOS BSI |
| Resolution | 51.4MP | 20.3MP | 24.2MP |
| Video | 4K/30p (cropped) | 4K/30p, 1080p/60p | 4K/30p (6K oversampled, no crop), 1080p/120p slow-motion |
| Autofocus | Phase-detect, 425 points | Phase-detect + contrast detect, 121 points | Phase-detect, 425 points, real-time Eye AF & animal AF |
| Stabilisation | 5-axis IBIS, 6.5 stops | 5-axis IBIS, 4.5 stops | None (no IBIS) |
| Burst Rate | 3fps | 15fps | 11fps mechanical, 8fps with AF tracking |
| Battery Life | ~440 shots (CIPA) | ~360 shots (CIPA) | ~410 shots (CIPA) |
| Weight | 900g body only | 383g body only | 403g (body, battery, card) |
| Dimensions | 150.0 × 104.2 × 87.2mm | 121.4 × 83.6 × 49.0mm | 120.0 × 66.9 × 59.7mm |
| Weather Sealed | Yes | No | No |
| Viewfinder | EVF, 3.69M dots, 0.77× magnification | EVF, 2.36M dots, 0.46× magnification | EVF, 2.36M dots, 0.70× magnification |
| Screen | 3.2" tilting touchscreen | 3.0" tilting touchscreen | 3.0" tilting touchscreen, 180° flip for selfie/vlog, 921k dots |
| Mount | Fujifilm G-mount (medium format) | Micro Four Thirds | Sony E-mount |
| Memory Cards | Dual SD UHS-II slots | Single SD UHS-I slot | Single SD UHS-I |
| Connectivity | USB-C, Bluetooth, Wi-Fi | USB Micro-B, Bluetooth, Wi-Fi, micro HDMI | Micro-USB, Wi-Fi, Bluetooth, NFC |
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