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GFX 100Svs A5100

GearFrame · Updated March 2026

Fujifilm GFX 100S Fujifilm GFX 100S (2021) Starting from £3999 new Best for Commercial, portrait & landscape photographers View GFX 100S
VS
Sony A5100 Sony A5100 (2014) Starting from £200 new Best for Casual & Travel View A5100

GearScore™ Verdict — Which should you buy?

Commercial, Portrait & Landscape Photographers — GFX 100S (2021): 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.

Casual & Travel — A5100 (2014): The A5100 is one of the smallest APS-C mirrorless cameras ever made. Its 24MP sensor, phase-detect AF, and selfie-friendly flip screen pack remarkable capability into a shirt-pocket-sized body. No EVF or hot shoe limits it for serious use, but as a compact travel camera or beginner's first mirrorless, it punches well above its price on the used market.

↓ Full specifications below

GFX 100S (2021)

  • 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

A5100 (2014)

  • Beginners stepping up from a smartphone
  • Compact travel photographers
  • Casual vloggers who want APS-C quality

Quick take: The gfx 100s has the highest resolution at 102mp; the a5100 is the most affordable; only the gfx 100s is weather sealed. Scroll down for the full spec breakdown.

Full specifications

Specification GFX 100S (2021)A5100 (2014)
Price £3,999 £200
Sensor 102MP Medium Format BSI CMOS (43.8 × 32.9mm) 24.3MP APS-C Exmor CMOS
Resolution 102.0MP 24.3MP
Video 4K/30p, FHD/120p 1080p/60p
Autofocus Phase-detect hybrid AF, face/eye detection Hybrid phase-detect / contrast-detect AF, face detection
Stabilisation IBIS — up to 6 stops None
Burst Rate 5fps 6fps
Battery Life ~460 shots (CIPA) ~400 shots (CIPA)
Weight 900g (with battery and card) 224g (body only)
Dimensions 150.0 × 104.2 × 87.2mm 109.6 × 62.8 × 35.7mm
Weather Sealed Yes No
Viewfinder EVF, 5.76M dots, 0.77× magnification None
Screen 3.0" 3-direction tilting touchscreen 3.0" flip-up touchscreen, 921k dots
Mount Fujifilm GFX (G-mount) Sony E-mount
Memory Cards Single CFexpress Type B / SD UHS-II combo slot Single SD / MemoryStick PRO Duo slot
Connectivity USB-C, Wi-Fi, Bluetooth Micro USB, Wi-Fi, NFC
Genre GFX 100SA5100
Portrait
9.0
7.5
Landscape
9.0
6.5
Architecture
9.0
Travel
7.0
8.5
Sports & Action
4.0
6.5
Vlogging & Video
4.0
7.0
Casual
9.0
Street
7.5

GearScore™ suitability scores are based on aggregated purchaser reviews weighted by photography genre. See how scores are calculated →

⚡ Compare specs side by side GFX 100S prices → A5100 prices →

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