Fujifilm GFX 100S IIvs OM System TG-7vs A6400
Fujifilm
Fujifilm GFX 100S II (2024)
From £4499
Best for Commercial, studio & landscape professionals
View Fujifilm GFX 100S II
OM System
OM System TG-7 (2023)
From £449
Best for Adventure, underwater & outdoor use
View OM System TG-7
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.
Adventure, Underwater & Outdoor Use — OM System TG-7 (2023): Waterproof to 15m, freezeproof and shockproof — the TG-7 is the most capable rugged compact for adventure and outdoor use.
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
OM System TG-7 (2023)
- You dive, surf, kayak, ski, or hike and need a camera that genuinely survives anything
- You want a waterproof backup or travel camera that doesn't require a separate housing
- You need a rugged compact for adventure, outdoor, and underwater activities
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 om system tg-7 is the most affordable; only the fujifilm gfx 100s ii, om system tg-7 are weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | Fujifilm GFX 100S II (2024) | OM System TG-7 (2023) | A6400 (2019) |
|---|---|---|---|
| Price | £4,499 | £449 | £899 |
| Sensor | 102MP medium-format BSI CMOS (43.8 × 32.9mm) | 12MP BSI CMOS | 24.2MP APS-C Exmor CMOS BSI |
| Resolution | 102.0MP | 12.0MP | 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 | Phase-detect, 425 points, real-time Eye AF & animal AF |
| Stabilisation | 8-stop IBIS | Digital IS | None (no IBIS) |
| Burst Rate | 7fps | 20fps | 11fps mechanical, 8fps with AF tracking |
| Battery Life | 460 shots (CIPA) | 340 shots (CIPA) | ~410 shots (CIPA) |
| Weight | 883g body only | 253g | 403g (body, battery, card) |
| Dimensions | 150.0 × 104.2 × 87.2mm | 113.0 × 66.5 × 32.7mm | 120.0 × 66.9 × 59.7mm |
| Weather Sealed | Yes | Yes | No |
| Viewfinder | 0.5" OLED EVF, 5.76M dots | None | EVF, 2.36M dots, 0.70× magnification |
| Screen | 3.2" tilting touchscreen | 3.0" fixed TFT LCD | 3.0" tilting touchscreen, 180° flip for selfie/vlog, 921k dots |
| Mount | Fujifilm GFX (G-mount) | Fixed 25mm-equiv f/2.0 lens (4× optical zoom) | 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 | USB-C, Wi-Fi, Bluetooth | Micro-USB, Wi-Fi, Bluetooth, NFC |
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