EOS-1D X Mark IIIvs Canon EOS 90Dvs EOS M

GearFrame · Updated March 2026

Canon EOS-1D X Mark III (2020) Starting from £3500 new Best for Professional Sports, Wildlife & Press Photography View EOS-1D X Mark III

Canon Canon EOS 90D (2019) Starting from £849 new Best for Sports, wildlife & DSLR enthusiasts View Canon EOS 90D

Canon EOS M (2012) Starting from £80 new Best for Canon mirrorless history & EF-M collectors View EOS M

GearScore™ Verdict — Which should you buy?

Professional Sports, Wildlife & Press Photography — EOS-1D X Mark III (2020): Canon's DSLR masterpiece — 20fps live view, 5.5K RAW, 191 cross-type AF points, and dual CFexpress. Almost certainly the finest optical viewfinder camera ever made.

Sports, Wildlife & Dslr Enthusiasts — Canon EOS 90D (2019): The best APS-C DSLR Canon ever made — 32MP, 10fps, weather sealing, and an optical viewfinder experience no mirrorless can replicate.

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.

↓ Full specifications below

Who should buy what

EOS-1D X Mark III (2020)

Sports and wildlife photographers with a Canon EF lens collection
Professionals who prefer the optical viewfinder experience
Press photographers who need 20fps, weather sealing, and Ethernet
Canon historians who want to mark the end of the EOS-1D DSLR era

Canon EOS 90D (2019)

DSLR photographers who aren't ready to switch to mirrorless
Sports and wildlife shooters who want optical viewfinder tracking
Canon APS-C DSLR users upgrading to 32.5MP and faster burst
Photographers who prefer the battery life and handling of a traditional DSLR

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

Quick take: The canon eos 90d has the highest resolution at 32mp; the eos m is the most affordable; only the eos-1d x mark iii, canon eos 90d are weather sealed. Scroll down for the full spec breakdown.

Full specifications

Specification	EOS-1D X Mark III (2020)	Canon EOS 90D (2019)	EOS M (2012)
Price	£3,500	£849	£80
Sensor	20.1MP full-frame CMOS	32.5MP APS-C CMOS (Dual Pixel AF)	18MP APS-C CMOS
Resolution	20.1MP	32.5MP	18.0MP
Video	5.5K RAW, 4K 60fps (crop), 4K 60fps (full-frame via firmware)	4K/30p (1.6× crop), FHD/120p	1080p 30fps
Autofocus	191-point all cross-type OVF AF; 525-point Dual Pixel CMOS AF (Live View)	Dual Pixel CMOS AF (live view), 45-point phase-detect (OVF)	Contrast-detect AF only — notoriously slow
Stabilisation	—	None (no IBIS)	—
Burst Rate	16fps mechanical, 20fps live view	10fps mechanical	4fps
Battery Life	~2850 shots (CIPA)	~1300 shots (CIPA with OVF)	~230 shots (CIPA)
Weight	1250g (body only)	701g body only	262g (body only)
Dimensions	158 × 167.6 × 82.6mm	140.7 × 104.8 × 76.8mm	108.6 × 66.5 × 32.3mm
Weather Sealed	Yes	Yes	No
Viewfinder	OVF 0.76× magnification, 100% coverage	Optical pentaprism, 100% coverage, 0.95× magnification	None (optional EVF accessory)
Screen	3.2" fully articulating touchscreen, 4.15M dots	3.0" vari-angle touchscreen	3.0" fixed touchscreen, 1.04M dots
Mount	Canon EF	Canon EF / EF-S	Canon EF-M mount
Memory Cards	Dual CFexpress Type B slots	Dual SD UHS-II slots	1× SD/SDHC/SDXC
Connectivity	Wi-Fi 5GHz, Bluetooth 4.2, USB-C 3.1 Gen 2, Ethernet	USB 2.0, Bluetooth, Wi-Fi	USB 2.0

Suitability by genre

Genre	EOS-1D X Mark III	Canon EOS 90D	EOS M
Sports & Action	10.0	9.0	—
Wildlife	9.0	9.0	—
Wedding & Events	9.0	—	—
Portrait	8.0	9.0	6.0
Vlogging & Video	7.0	4.0	5.0
Street	7.0	—	6.0
Landscape	7.0	7.0	—
Travel	—	7.0	6.0
Casual	—	—	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-1D X Mark III prices → Canon EOS 90D prices → EOS M prices →

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Camera family history