Canon EOS R3vs EOS RPvs Ricoh GR III

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 RP Canon EOS RP (2019) From £799 Best for Entry full-frame stills photography View EOS RP
VS
Ricoh Ricoh GR III Ricoh Ricoh GR III (2019) From £899 Best for Street photography & urban reportage View Ricoh GR III

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.

Entry Full-Frame Stills Photography — EOS RP (2019): An affordable gateway into the RF system. The RP makes sense as a stepping stone camera — if you're committed to Canon RF glass, this is the cheapest full-frame body to buy those lenses for. Just manage expectations on video and battery life.

Street Photography & Urban Reportage — Ricoh GR III (2019): The purest street photography compact — APS-C sensor, 28mm perspective, IBIS, and cult-favourite JPEG rendering in a shirt pocket.

↓ 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 RP (2019)

  • Canon users who want to start investing in RF glass affordably
  • Stills photographers who shoot primarily in good light
  • Anyone coming from a Canon DSLR wanting the RF system at low cost
  • Travel photographers who prioritise compactness over video specs

Ricoh GR III (2019)

  • You shoot street, travel, or documentary and want APS-C quality in a coat or shirt pocket
  • You want a camera you'll genuinely always carry without thinking about it
  • You appreciate sharp, characterful images from a fixed 28mm equivalent focal length

Quick take: The eos rp has the highest resolution at 26mp; the eos rp is the most affordable; only the canon eos r3 is weather sealed. Scroll down for the full spec breakdown.

Full specifications

Specification Canon EOS R3 (2021)EOS RP (2019)Ricoh GR III (2019)
Price £5,999 £799 £899
Sensor 24.1MP full-frame BSI stacked CMOS 26.2MP Full-Frame CMOS 24.2MP APS-C CMOS
Resolution 24.1MP 26.2MP 24.2MP
Video 6K RAW, 4K/120p, 1080p/180p 4K/24p (with 1.7× crop), 1080p/60p 1080p/60p
Autofocus Dual Pixel CMOS AF II with Eye Control AF Dual Pixel CMOS AF, 4779 manually selectable positions Hybrid contrast/phase-detect AF with subject detection
Stabilisation 8-stop IBIS None (no IBIS) 4-stop IBIS (Shake Reduction)
Burst Rate 30fps electronic / 12fps mechanical 5fps mechanical 4fps
Battery Life 620 shots (CIPA) ~250 shots (CIPA) — very limited 200 shots (CIPA)
Weight 1015g body only 485g (body, battery, card) 257g
Dimensions 150.0 × 142.6 × 87.2mm 132.5 × 85.0 × 70.0mm 109.4 × 61.9 × 33.2mm
Weather Sealed Yes No No
Viewfinder 0.76" OLED EVF, 5.76M dots, 120fps EVF, 2.36M dots, 0.70× magnification None
Screen 3.2" fully articulating touchscreen 3.0" vari-angle touchscreen, 1.04M dots 3.0" fixed touchscreen
Mount Canon RF Canon RF-mount Fixed 28mm-equiv f/2.8 lens
Memory Cards Dual CFexpress Type B Single SD UHS-II Single SD UHS-I
Connectivity USB-C 3.2, HDMI full-size, Wi-Fi 6, Bluetooth, LAN USB-C, Wi-Fi, Bluetooth USB-C, Wi-Fi, Bluetooth
⚡ Compare specs side by side Canon EOS R3 prices → EOS RP prices → Ricoh GR III prices →

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