Canon EOS R3vs Fujifilm GFX 100S IIvs A7 IV

GearFrame · Updated March 2026

Canon Canon EOS R3 Canon Canon EOS R3 (2021) From £5999 Best for Sports & photojournalism professionals View Canon EOS R3
VS
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 A7 IV Sony A7 IV (2021) From £2299 Best for Portrait & wedding photography View A7 IV

Which should you buy?

Sports & Photojournalism Professionals — Canon EOS R3 (2021): The pinnacle of Canon's mirrorless lineup for speed — Eye Control AF and 30fps burst in the most rugged body Canon has ever produced.

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.

Portrait & Wedding Photography — A7 IV (2021): The full-frame portrait benchmark — 33MP, AI Eye AF, and exceptional skin-tone rendering in a pro-grade hybrid body.

↓ Full specifications below

Canon EOS R3 (2021)

  • You shoot sport, motorsport, wildlife, or news at a professional level
  • You need Canon's most reliable and fastest autofocus available
  • You need extreme weather sealing for demanding shooting conditions

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

A7 IV (2021)

  • You want a high-resolution full-frame all-rounder for portraits, weddings, or travel
  • You're stepping up from APS-C or a DSLR and want the best all-round full-frame body under £3,000
  • You shoot a mix of stills and video and need a single body that handles both seriously
  • You want access to the widest lens ecosystem in the mirrorless market

Quick take: The fujifilm gfx 100s ii has the highest resolution at 102mp; the a7 iv is the most affordable. Scroll down for the full spec breakdown.

Full specifications

Specification Canon EOS R3 (2021)Fujifilm GFX 100S II (2024)A7 IV (2021)
Price £5,999 £4,499 £2,299
Sensor 24.1MP full-frame BSI stacked CMOS 102MP medium-format BSI CMOS (43.8 × 32.9mm) 33MP Full-frame BSI Exmor R CMOS
Resolution 24.1MP 102.0MP 33.0MP
Video 6K RAW, 4K/120p, 1080p/180p 4K/30p, 1080p/60p 4K/60p oversampled, 10-bit internal, S-Log3, S-Cinetone
Autofocus Dual Pixel CMOS AF II with Eye Control AF Phase-detect AF with subject/face/eye detection 759-point phase-detect, AI subject recognition
Stabilisation 8-stop IBIS 8-stop IBIS 5-axis IBIS, 5.5 stops
Burst Rate 30fps electronic / 12fps mechanical 7fps 10fps mechanical, 30fps electronic
Battery Life 620 shots (CIPA) 460 shots (CIPA) ~580 shots (CIPA)
Weight 1015g body only 883g body only 659g body only
Dimensions 150.0 × 142.6 × 87.2mm 150.0 × 104.2 × 87.2mm 131.3 × 96.4 × 79.8mm
Weather Sealed Yes Yes Yes
Viewfinder 0.76" OLED EVF, 5.76M dots, 120fps 0.5" OLED EVF, 5.76M dots EVF, 3.69M dots, 0.78× magnification
Screen 3.2" fully articulating touchscreen 3.2" tilting touchscreen 3.0" vari-angle touchscreen
Mount Canon RF Fujifilm GFX (G-mount) Sony FE (full-frame E-mount)
Memory Cards Dual CFexpress Type B Dual SD UHS-II Dual slots: CFexpress Type A + SD UHS-II
Connectivity USB-C 3.2, HDMI full-size, Wi-Fi 6, Bluetooth, LAN USB-C 3.2, Wi-Fi, Bluetooth USB-C (3.2 Gen 2), Bluetooth, Wi-Fi
⚡ Compare specs side by side Canon EOS R3 prices → Fujifilm GFX 100S II prices → A7 IV prices →

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