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Upgrade Guide

Canon Canon EOS R3Canon EOS M3

Is it worth upgrading? Spec analysis, key improvements, and our verdict.

Canon EOS R3
You own
Canon
Canon EOS R3
£5999
2021
View on GearFrame →
EOS M3
Upgrade to
Canon
EOS M3
£150 (-£5,849)
2015
View on GearFrame →
Skip it
The EOS M3 offers little measurable spec improvement over the Canon EOS R3. Spend the money on glass instead.
Unchanged or similar
Suitability by genre
Genre Canon EOS R3 EOS M3
Sports & Action
9.0
4.0
-5.0
Wildlife
9.0
Photojournalism
9.0
Vlogging & Video
7.0
4.5
-2.5
Wedding & Events
7.0
Travel
4.0
7.5
+3.5
Casual
8.0
Portrait
7.5
Street
7.0
Full spec comparison
Spec Canon EOS R3 EOS M3
Price £5,999 £150
Released 2021 2015
Sensor 24.1MP full-frame BSI stacked CMOS 24.2MP APS-C CMOS
Resolution 24MP 24MP
Video 6K RAW, 4K/120p, 1080p/180p 1080p/30p
Autofocus Dual Pixel CMOS AF II with Eye Control AF Hybrid CMOS AF III (phase-detect + contrast-detect)
Stabilisation 8-stop IBIS
Burst Rate 30fps electronic / 12fps mechanical 4.2fps
Battery Life 620 shots (CIPA) ~250 shots (CIPA)
Weight 1015g body only 366g (body only)
Weather Sealed Yes No
Viewfinder 0.76" OLED EVF, 5.76M dots, 120fps None (optional EVF-DC1 accessory)
Screen 3.2" fully articulating touchscreen 3.0" tilting touchscreen, 1.04M dots
Mount Canon RF Canon EF-M mount
Memory Cards Dual CFexpress Type B Single SD UHS-I slot
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