Fujifilm GFX 100S IIvs Olympus OM-D E-M5 IIIvs A6400
Fujifilm
Fujifilm GFX 100S II (2024)
From £4499
Best for Commercial, studio & landscape professionals
View Fujifilm GFX 100S II
OM System
Olympus OM-D E-M5 III (2019)
From £699
Best for Travel & lightweight outdoor photography
View Olympus OM-D E-M5 III
Which should you buy?
Commercial, Studio & Landscape Professionals — Fujifilm GFX 100S II (2024): 102MP medium-format quality in the most accessible GFX body — the best entry point to the Fujifilm GFX system.
Travel & Lightweight Outdoor Photography — Olympus OM-D E-M5 III (2019): The lightest weather-sealed MFT camera — compact, travel-friendly, and capable with 7.5-stop IBIS in a body that fits in a jacket pocket.
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
Fujifilm GFX 100S II (2024)
- You need the highest resolution available outside of a Phase One system
- You shoot studio, fashion, landscape, or architecture at a professional level
- You want medium format quality without the bulk of a traditional large-format system
Olympus OM-D E-M5 III (2019)
- You want a lightweight, sealed camera for travel and outdoor photography
- You're new to Micro Four Thirds and want a capable mid-range body with excellent stabilisation
- Note: consider the newer OM-5 for updated specs in a similar compact form factor
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 fujifilm gfx 100s ii has the highest resolution at 102mp; the olympus om-d e-m5 iii is the most affordable; only the fujifilm gfx 100s ii, olympus om-d e-m5 iii are weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | Fujifilm GFX 100S II (2024) | Olympus OM-D E-M5 III (2019) | A6400 (2019) |
|---|---|---|---|
| Price | £4,499 | £699 | £899 |
| Sensor | 102MP medium-format BSI CMOS (43.8 × 32.9mm) | 20.4MP Micro Four Thirds Live MOS | 24.2MP APS-C Exmor CMOS BSI |
| Resolution | 102.0MP | 20.4MP | 24.2MP |
| Video | 4K/30p, 1080p/60p | 4K/30p, 1080p/120p | 4K/30p (6K oversampled, no crop), 1080p/120p slow-motion |
| Autofocus | Phase-detect AF with subject/face/eye detection | Hybrid phase/contrast AF with face/eye detection | Phase-detect, 425 points, real-time Eye AF & animal AF |
| Stabilisation | 8-stop IBIS | 7.5-stop 5-axis IBIS | None (no IBIS) |
| Burst Rate | 7fps | 30fps electronic / 10fps mechanical | 11fps mechanical, 8fps with AF tracking |
| Battery Life | 460 shots (CIPA) | 390 shots (CIPA) | ~410 shots (CIPA) |
| Weight | 883g body only | 414g body only | 403g (body, battery, card) |
| Dimensions | 150.0 × 104.2 × 87.2mm | 125.3 × 85.2 × 49.7mm | 120.0 × 66.9 × 59.7mm |
| Weather Sealed | Yes | Yes | No |
| Viewfinder | 0.5" OLED EVF, 5.76M dots | 0.35" OLED EVF, 2.36M dots | EVF, 2.36M dots, 0.70× magnification |
| Screen | 3.2" tilting touchscreen | 3.0" fully articulating touchscreen | 3.0" tilting touchscreen, 180° flip for selfie/vlog, 921k dots |
| Mount | Fujifilm GFX (G-mount) | Micro Four Thirds | Sony E-mount |
| Memory Cards | Dual SD UHS-II | Single SD UHS-I | Single SD UHS-I |
| Connectivity | USB-C 3.2, Wi-Fi, Bluetooth | Micro USB, Wi-Fi, Bluetooth | Micro-USB, Wi-Fi, Bluetooth, NFC |
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