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EOS Mvs Canon EOS R3vs EOS R6

GearFrame · Updated March 2026

Canon EOS M Canon EOS M (2012) Starting from £80 new Best for Canon mirrorless history & EF-M collectors View EOS M
VS
Canon Canon EOS R3 Canon Canon EOS R3 (2021) Starting from £5999 new Best for Sports & photojournalism professionals View Canon EOS R3
VS
Canon EOS R6 Canon EOS R6 (2020) Starting from £1299 new Best for Wedding, portrait, sports, video View EOS R6

GearScore™ Verdict — Which should you buy?

Canon Mirrorless History & Ef-M Collectors — EOS M (2012): Canon's first mirrorless — a historic body that broke new ground with touch-AF and EF-M, but its sluggish contrast-detect system quickly became its Achilles heel.

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.

Wedding, Portrait, Sports, Video — EOS R6 (2020): The camera that made Canon's RF system worth taking seriously.

↓ Full specifications below

EOS M (2012)

  • Canon shooters who want the camera that started Canon's mirrorless story
  • Budget first-time mirrorless buyers who already own EF/EF-S glass
  • Collectors of significant digital camera milestones

Canon EOS R3 (2021)

  • Professional sports and photojournalism photographers
  • Canon users who need the fastest burst and most reliable AF in the system
  • R5 users who want a pro-grade grip and faster shooting speed
  • Event photographers who need eye-controlled AF and dual card slots

EOS R6 (2020)

  • Canon DSLR shooters moving to mirrorless
  • Hybrid photographers who shoot both stills and video

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

Full specifications

Specification EOS M (2012)Canon EOS R3 (2021)EOS R6 (2020)
Price £80 £5,999 £1,299
Sensor 18MP APS-C CMOS 24.1MP full-frame BSI stacked CMOS Full-frame CMOS 35mm
Resolution 18.0MP 24.1MP 20.1MP
Video 1080p 30fps 6K RAW, 4K/120p, 1080p/180p 4K 60fps (crop), 4K 30fps (full), 1080p 120fps
Autofocus Contrast-detect AF only — notoriously slow Dual Pixel CMOS AF II with Eye Control AF Dual Pixel CMOS AF II, 6072 AF positions, subject tracking
Stabilisation 8-stop IBIS 5-axis IBIS, up to 8 stops coordinated IS
Burst Rate 4fps 30fps electronic / 12fps mechanical 12fps mechanical, 20fps electronic
Battery Life ~230 shots (CIPA) 620 shots (CIPA) 380 shots (LCD), 510 shots (EVF)
Weight 262g (body only) 1015g body only 598g (body only)
Dimensions 108.6 × 66.5 × 32.3mm 150.0 × 142.6 × 87.2mm 138.4 × 97.5 × 88.4mm
Weather Sealed No Yes Yes
Viewfinder None (optional EVF accessory) 0.76" OLED EVF, 5.76M dots, 120fps EVF 0.76× 3.69M-dot
Screen 3.0" fixed touchscreen, 1.04M dots 3.2" fully articulating touchscreen 3.0" fully articulating touchscreen, 1.62M-dot
Mount Canon EF-M mount Canon RF Canon RF
Memory Cards 1× SD/SDHC/SDXC Dual CFexpress Type B 2× SD UHS-II
Connectivity USB 2.0 USB-C 3.2, HDMI full-size, Wi-Fi 6, Bluetooth, LAN Wi-Fi 5GHz, Bluetooth 4.2, USB-C 3.1, HDMI
Genre EOS MCanon EOS R3EOS R6
Casual
7.0
Travel
6.0
4.0
Street
6.0
7.0
Portrait
6.0
9.0
Vlogging & Video
5.0
7.0
9.0
Sports & Action
9.0
9.0
Wildlife
9.0
8.0
Photojournalism
9.0
Wedding & Events
7.0
9.0
Landscape
7.0

GearScore™ suitability scores are based on aggregated purchaser reviews weighted by photography genre. See how scores are calculated →

⚡ Compare specs side by side EOS M prices → Canon EOS R3 prices → EOS R6 prices →

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