Decision tools · Compare

GFX 100RF vs A5100

Quick take: The GFX 100RF has the highest resolution at 102MP; the A5100 is the most affordable; only the GFX 100RF is weather sealed.

16 specs side by side·16 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.

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Verdictwhich should you buy?

GFX 100RF — Landscape, Travel & Street Photography At Medium Format Quality: The world's first medium format compact — 102MP, 28mm, and all 20 Fujifilm film simulations in a fixed-lens body.

A5100 — Casual & Travel: 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.

Who should buy what
GFX 100RF (2025)
is the right camera for you if…
  • Landscape photographers who want medium format resolution without a system of interchangeable lenses
  • Leica Q3 owners who want a step up in resolution to 102MP medium format
  • Fujifilm GFX users who want a compact fixed-lens body for travel alongside their system lenses
  • Photographers who want the ultimate image quality in a jacket-pocketable form factor
A5100 (2014)
is the right camera for you if…
  • Beginners stepping up from a smartphone
  • Compact travel photographers
  • Casual vloggers who want APS-C quality
Full specificationsthe better value in each row is highlighted
Specification GFX 100RFFujifilm · 2025A5100Sony · 2014
Price £4,699£102 usedBest
Sensor 102MP medium format BSI CMOS (43.8 × 32.9mm)24.3MP APS-C Exmor CMOS
Resolution 102.0MPBest24.3MP
Video 4K/30p 10-bit, F-Log21080p/60p
Autofocus Phase-detect AF with face and eye detectionHybrid phase-detect / contrast-detect AF, face detection
Stabilisation No IBIS (electronic IS for video)No stabilisation
Burst Rate 8fps electronicBest6fps
Battery Life ~820 shots (CIPA, normal mode)Best~400 shots (CIPA)
Weight 735g (body only)224g (body only)Best
Dimensions 159.0 × 90.4 × 59.0mm109.6 × 62.8 × 35.7mm
Weather Sealed YesBestNot weather sealed
Viewfinder EVF 0.86× 5.76M-dot — outstanding GFX viewfinderNo viewfinder
Screen 3.2" tilting touchscreen, 2.36M dots3.0" flip-up touchscreen, 921k dots
Mount Fixed GF 35mm f/4 (28mm equivalent in 35mm terms)Sony E-mount
Memory Cards Dual SD UHS-II slotsSingle SD / MemoryStick PRO Duo slot
Connectivity USB-C, Wi-Fi 5GHz, Bluetooth, 3.5mm mic jackMicro USB, Wi-Fi, NFC

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 100RF
A5100
Portrait
5.6/10
5.4/10
Street
7.5/10
7.0/10
Travel
6.3/10
6.4/10
Wedding & Events
8.6/10
3.5/10
Filmmaking
6.4/10
—
Documentary
7.4/10
4.1/10
Landscape
7.8/10
5.0/10
Casual
4.5/10
5.2/10
Food
6.6/10
5.9/10
Macro
5.0/10
5.2/10
Architecture
7.6/10
5.2/10
Astrophotography
6.4/10
4.7/10
Vlogging & Video
—
4.7/10
Sports & Action
—
4.7/10
Wildlife
—
5.5/10
Fun & simple
—
4.9/10

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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