Canon EOS R3vs EOS R6 Mark IIvs Ricoh GR IIIx

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
Canon EOS R6 Mark II Canon EOS R6 Mark II (2022) From £2099 Best for Portraits & action View EOS R6 Mark II
VS
Ricoh Ricoh GR IIIx Ricoh Ricoh GR IIIx (2021) From £999 Best for Street portraits & reportage View Ricoh GR IIIx

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.

Portraits & Action — EOS R6 Mark II (2022): 40fps burst, 8-stop IBIS, and Canon's best-in-class Dual Pixel AF — exceptional for action, sports, and portrait work.

Street Portraits & Reportage — Ricoh GR IIIx (2021): APS-C in a shirt pocket with a 40mm perspective — the GR IIIx is the ideal street portrait compact for photographers who want a slightly tighter frame.

↓ 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

EOS R6 Mark II (2022)

  • You want a do-everything full-frame body for weddings and events
  • You need reliable subject tracking across stills and fast-moving video
  • You shoot both photos and video professionally and need a single body that handles both
  • You want Canon's colour science with a modern mirrorless system

Ricoh GR IIIx (2021)

  • You want the GR experience with a slightly tighter, more versatile field of view
  • You shoot portraits, food, or street scenes where 40mm suits better than 28mm wide
  • You want a premium compact that fits in a shirt pocket with better tonal rendering than a phone

Quick take: The eos r6 mark ii has the highest resolution at 24mp; the ricoh gr iiix is the most affordable; only the canon eos r3, eos r6 mark ii are weather sealed. Scroll down for the full spec breakdown.

Full specifications

Specification Canon EOS R3 (2021)EOS R6 Mark II (2022)Ricoh GR IIIx (2021)
Price £5,999 £2,099 £999
Sensor 24.1MP full-frame BSI stacked CMOS 24.2MP Full-frame BSI CMOS 24.2MP APS-C CMOS
Resolution 24.1MP 24.2MP 24.2MP
Video 6K RAW, 4K/120p, 1080p/180p 4K/60p 10-bit oversampled, 6K RAW out, FHD/180p 1080p/60p
Autofocus Dual Pixel CMOS AF II with Eye Control AF Dual Pixel CMOS AF II, 6072 zones, deep-learning subject tracking Hybrid contrast/phase-detect AF with subject detection
Stabilisation 8-stop IBIS 5-axis IBIS, 8.0 stops (coordinated with IS lenses) 4-stop IBIS (Shake Reduction)
Burst Rate 30fps electronic / 12fps mechanical 12fps mechanical, 40fps electronic 4fps
Battery Life 620 shots (CIPA) ~760 shots (CIPA) 200 shots (CIPA)
Weight 1015g body only 670g body only 262g
Dimensions 150.0 × 142.6 × 87.2mm 138.4 × 98.4 × 88.4mm 111.2 × 61.4 × 33.2mm
Weather Sealed Yes Yes No
Viewfinder 0.76" OLED EVF, 5.76M dots, 120fps EVF, 3.69M dots, 0.76× magnification None
Screen 3.2" fully articulating touchscreen 3.0" fully articulating touchscreen 3.0" fixed touchscreen
Mount Canon RF Canon RF mount (full-frame) Fixed 40mm-equiv f/2.8 lens
Memory Cards Dual CFexpress Type B Dual SD UHS-II slots Single SD UHS-I
Connectivity USB-C 3.2, HDMI full-size, Wi-Fi 6, Bluetooth, LAN USB-C 3.1, Bluetooth, Wi-Fi USB-C, Wi-Fi, Bluetooth
⚡ Compare specs side by side Canon EOS R3 prices → EOS R6 Mark II prices → Ricoh GR IIIx prices →

Compare pairs from this group