Decision tools · Compare
GFX 100S vs A1
Quick take: The GFX 100S has the highest resolution at 102MP; the GFX 100S is the most affordable.
16 specs side by side·14 genres scored·UK prices from Wex Photo Video and Clifton Cameras
How to read this page. Highlighted cells win that row on the spec alone. Genre scores are the engine's base scores (enthusiast, photo and video); Camera Match re-weights them for your level and priorities. Price buttons are affiliate links; the price you pay is the same.
Sony
A1 2021
Best for Professional sport, wildlife, portrait & hybrid shooting
£4199
new today at Wex Photo Video
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Verdictwhich should you buy?
GFX 100S — Commercial, Portrait & Landscape Photographers: 102MP medium-format with IBIS and phase-detect AF at a price that made serious large-format imaging available to a new generation of photographers.
A1 — Professional Sport, Wildlife, Portrait & Hybrid Shooting: 50MP, 30fps, 8K — the Sony A1 is the most complete professional camera ever made.
Who should buy what
GFX 100S (2021)
is the right camera for you if…
- Portrait and commercial photographers who need extraordinary resolution and rendering
- Landscape photographers who want the finest large-format detail in a manageable body
- GFX 50S II users who want to double their resolution with improved AF
- Studio photographers moving up from full-frame who want medium-format colour science
A1 (2021)
is the right camera for you if…
- Professional photographers who need resolution and speed without compromise
- Sports and wildlife photographers demanding the absolute fastest Sony
- Studio and fashion photographers who also shoot sport or events
- A9 III or A7R V owners who want a single body that does everything
Full specificationsthe better value in each row is highlighted
| Specification | GFX 100SFujifilm · 2021 | A1Sony · 2021 |
|---|---|---|
| Price | £4,094Best | £4,199 |
| Sensor | 102MP Medium Format BSI CMOS (43.8 × 32.9mm) | 50.1MP Full-Frame Stacked BSI CMOS Exmor RS |
| Resolution | 102.0MPBest | 50.1MP |
| Video | 4K/30p, FHD/120p | 8K/30p, 4K/120p, 1080p/240p |
| Autofocus | Phase-detect hybrid AF, face/eye detection | Real-time Tracking, AI subject recognition — 759 phase-detect points |
| Stabilisation | IBIS — up to 6 stops | IBIS — up to 5.5 stops |
| Burst Rate | 5fps | 30fps electronic with full AF/AEBest |
| Battery Life | ~460 shots (CIPA)Best | ~430 shots (CIPA) |
| Weight | 819g (body only) | 737g (with battery and card)Best |
| Dimensions | 150.0 × 104.2 × 87.2mm | 128.9 × 96.9 × 80.8mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | EVF, 5.76M dots, 0.77× magnification | EVF, 9.44M dots, 0.90× magnification, 240fps |
| Screen | 3.0" 3-direction tilting touchscreen | 3.0" fully tilting touchscreen |
| Mount | Fujifilm GFX (G-mount) | Sony FE mount (full-frame E-mount) |
| Memory Cards | Dual SD UHS-II slots | Dual CFexpress Type A / SD UHS-II |
| Connectivity | USB-C, Wi-Fi, Bluetooth | USB-C, Wi-Fi 5GHz, Bluetooth, Ethernet, HDMI |
Wins the row — price, resolution, burst, battery, weight and sealing are compared; text specs aren't ranked.
How they score by genreengine base scores out of 10
Genre
GFX 100S
A1
Portrait
8.1/10
8.2/10
Street
5.7/10
6.1/10
Travel
5.6/10
5.9/10
Wedding & Events
7.7/10
7.9/10
Filmmaking
6.7/10
7.8/10
Documentary
6.9/10
7.6/10
Sports & Action
5.7/10
8.8/10
Landscape
8.3/10
7.6/10
Wildlife
5.7/10
8.7/10
Casual
4.4/10
4.8/10
Food
7.4/10
7.4/10
Macro
6.9/10
7.3/10
Architecture
8.7/10
7.9/10
Astrophotography
5.6/10
6.8/10
Scores come from the same engine as Camera Match: verified specifications weighted by what each genre needs, with documented adjustments. The product page and this table show the enthusiast base score. See how scores are calculated →
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