Fujifilm GFX 100S IIvs A6700vs A7S III

GearFrame · Updated March 2026

Fujifilm Fujifilm GFX 100S II Fujifilm Fujifilm GFX 100S II (2024) From £4499 Best for Commercial, studio & landscape professionals View Fujifilm GFX 100S II
VS
Sony A6700 Sony A6700 (2023) From £999 Best for All-round & video View A6700
VS
Sony A7S III Sony A7S III (2020) From £2999 Best for Professional video & low-light filmmaking View A7S 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.

All-Round & Video — A6700 (2023): Best-in-class autofocus and 4K/120p video in a compact APS-C body — the standout camera under £1,000.

Professional Video & Low-Light Filmmaking — A7S III (2020): If video is your primary discipline, the A7S III is the camera. 4K/120p at 10-bit in a weather-sealed body with a 9.44M dot EVF is an extraordinary package. The 12MP sensor isn't limiting for video — and it's usable at ISO 409,600 in a pinch.

↓ Full specifications below

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

A6700 (2023)

  • You want a compact, travel-friendly system without sacrificing autofocus performance
  • You're an enthusiast upgrading from an entry-level camera and ready for a more capable body
  • You shoot wildlife or sports and want APS-C reach from a lightweight kit
  • You create video content and need reliable subject and eye tracking in a small form factor

A7S III (2020)

  • Filmmakers and videographers who need 4K/120p at 10-bit
  • Event videographers who shoot in dark venues regularly
  • Documentary filmmakers who need reliable AF and weather sealing
  • Hybrid shooters where video is primary and stills are secondary

Quick take: The fujifilm gfx 100s ii has the highest resolution at 102mp; the a6700 is the most affordable; only the fujifilm gfx 100s ii, a7s iii are weather sealed. Scroll down for the full spec breakdown.

Full specifications

Specification Fujifilm GFX 100S II (2024)A6700 (2023)A7S III (2020)
Price £4,499 £999 £2,999
Sensor 102MP medium-format BSI CMOS (43.8 × 32.9mm) 26MP APS-C Exmor R BSI CMOS 12.1MP Full-Frame BSI CMOS (12-bit, back-illuminated)
Resolution 102.0MP 26.0MP 12.1MP
Video 4K/30p, 1080p/60p 4K/120p, 4K/60p oversampled, S-Log3, 10-bit 4K/120p 10-bit, 4K/60p 10-bit S-Cinetone/S-Log3, 1080p/240p
Autofocus Phase-detect AF with subject/face/eye detection 759-point phase-detect, AI subject recognition (human/animal/bird/vehicle) Phase-detect, 759 points, real-time Eye AF (human & animal), subject recognition
Stabilisation 8-stop IBIS 5-axis IBIS, 5.0 stops 5.5-stop IBIS
Burst Rate 7fps 11fps mechanical, 30fps electronic 10fps mechanical
Battery Life 460 shots (CIPA) ~570 shots (CIPA) ~600 shots (CIPA) / ~70min continuous 4K recording
Weight 883g body only 493g body only 699g (body, battery, card)
Dimensions 150.0 × 104.2 × 87.2mm 122.0 × 69.0 × 75.1mm 128.9 × 96.9 × 80.8mm
Weather Sealed Yes No Yes
Viewfinder 0.5" OLED EVF, 5.76M dots EVF, 2.36M dots OLED EVF, 9.44M dots, 0.90× magnification — best EVF Sony has made
Screen 3.2" tilting touchscreen 3.0" vari-angle touchscreen 3.0" vari-angle touchscreen, 1.44M dots
Mount Fujifilm GFX (G-mount) Sony E-mount Sony E-mount
Memory Cards Dual SD UHS-II Single SD UHS-II / CFexpress Type A slot Dual CFexpress Type A / SD UHS-II (both slots)
Connectivity USB-C 3.2, Wi-Fi, Bluetooth USB-C (3.2), Bluetooth, Wi-Fi USB-C (USB 3.2 Gen 2), full-size HDMI, Wi-Fi 6, Bluetooth
⚡ Compare specs side by side Fujifilm GFX 100S II prices → A6700 prices → A7S III prices →

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