Canon EOS R3vs Leica Q3vs 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
Leica Leica Q3 Leica Leica Q3 (2023) From £5999 Best for Travel, street & premium compact shooters View Leica Q3
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.

Travel, Street & Premium Compact Shooters — Leica Q3 (2023): 60MP, Summilux 28mm, IBIS, and weather sealing — the Q3 is the ultimate fixed-lens camera for those who can justify the cost.

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

Leica Q3 (2023)

  • You want a single camera that's ready for anything, anywhere — no lens changes needed
  • You shoot street, travel, or documentary and want full-frame quality in a compact body
  • You appreciate Leica optical quality and are comfortable committing to one focal length

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 leica q3 has the highest resolution at 60mp; the ricoh gr iii is the most affordable; only the canon eos r3, leica q3 are weather sealed. Scroll down for the full spec breakdown.

Full specifications

Specification Canon EOS R3 (2021)Leica Q3 (2023)Ricoh GR III (2019)
Price £5,999 £5,999 £899
Sensor 24.1MP full-frame BSI stacked CMOS 60MP full-frame BSI CMOS 24.2MP APS-C CMOS
Resolution 24.1MP 60.0MP 24.2MP
Video 6K RAW, 4K/120p, 1080p/180p 8K/30p, 4K/60p, C4K/60p 1080p/60p
Autofocus Dual Pixel CMOS AF II with Eye Control AF Phase-detect AF with subject/face/eye detection Hybrid contrast/phase-detect AF with subject detection
Stabilisation 8-stop IBIS 5.5-stop IBIS 4-stop IBIS (Shake Reduction)
Burst Rate 30fps electronic / 12fps mechanical 15fps 4fps
Battery Life 620 shots (CIPA) 380 shots (CIPA) 200 shots (CIPA)
Weight 1015g body only 743g 257g
Dimensions 150.0 × 142.6 × 87.2mm 130.0 × 80.3 × 91.0mm 109.4 × 61.9 × 33.2mm
Weather Sealed Yes Yes No
Viewfinder 0.76" OLED EVF, 5.76M dots, 120fps 0.787" OLED EVF, 5.76M dots None
Screen 3.2" fully articulating touchscreen 3.0" fixed touchscreen 3.0" fixed touchscreen
Mount Canon RF Fixed Summilux 28mm f/1.7 ASPH 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 3.1, Wi-Fi, Bluetooth USB-C, Wi-Fi, Bluetooth
⚡ Compare specs side by side Canon EOS R3 prices → Leica Q3 prices → Ricoh GR III prices →

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