Upgrade Guide

Canon EOS R6→Canon EOS-1D X Mark III

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

You own

Canon

EOS R6

£1299

2020

→

Upgrade to

Canon

EOS-1D X Mark III

£3500 (+£2,201)

2020

✅

Worthwhile

Clear improvements over the EOS R6. Whether it justifies the cost depends on which upgrades matter most to your shooting.

What's new in the EOS-1D X Mark III

↑

Burst rate

16fps mechanical, 20fps live view vs 12fps mechanical, 20fps electronic
↑

Battery life

~2850 shots (CIPA) vs 380 shots (LCD), 510 shots (EVF)

Unchanged or similar

Suitability by genre

Full spec comparison

Spec	EOS R6	EOS-1D X Mark III
Price	£1,299	£3,500
Released	2020	2020
Sensor	Full-frame CMOS 35mm	20.1MP full-frame CMOS
Resolution	20MP	20MP
Video	4K 60fps (crop), 4K 30fps (full), 1080p 120fps	5.5K RAW, 4K 60fps (crop), 4K 60fps (full-frame via firmware)
Autofocus	Dual Pixel CMOS AF II, 6072 AF positions, subject tracking	191-point all cross-type OVF AF; 525-point Dual Pixel CMOS AF (Live View)
Stabilisation	5-axis IBIS, up to 8 stops coordinated IS	—
Burst Rate	12fps mechanical, 20fps electronic	16fps mechanical, 20fps live view	↑
Battery Life	380 shots (LCD), 510 shots (EVF)	~2850 shots (CIPA)	↑
Weight	598g (body only)	1250g (body only)	↓
Weather Sealed	Yes	Yes
Viewfinder	EVF 0.76× 3.69M-dot	OVF 0.76× magnification, 100% coverage
Screen	3.0" fully articulating touchscreen, 1.62M-dot	3.2" fully articulating touchscreen, 4.15M dots
Mount	Canon RF	Canon EF
Memory Cards	2× SD UHS-II	Dual CFexpress Type B slots

Compare side-by-side

See EOS R6 and EOS-1D X Mark III next to each other with our interactive comparison tool.

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