EOS R6 Mark IIIvs Sony A9 III
Canon
EOS R6 Mark III (2025)
Starting from £2799 new
Best for Hybrid photo & video professionals, sports and wildlife shooters
View EOS R6 Mark III
Sony
Sony A9 III (2023)
Starting from £5999 new
Best for Sports & action professionals
View Sony A9 III
GearScore™ Verdict — Which should you buy?
Hybrid Photo & Video Professionals, Sports And Wildlife Shooters — EOS R6 Mark III (2025): The EOS R6 Mark III takes everything that made the Mark II a hybrid favourite and pushes it further — a faster stacked sensor, smarter autofocus, and genuinely professional video specs. It's the most complete all-rounder in Canon's RF full-frame lineup, sitting just below the R5 II in resolution while matching it for speed.
Sports & Action Professionals — Sony A9 III (2023): A paradigm-shifting camera — the global shutter eliminates every rolling shutter limitation that has constrained action photography for years.
Who should buy what
EOS R6 Mark III (2025)
- Working photographers who need a single body for both stills and serious video work
- Sports and wildlife shooters who need 40fps burst shooting with reliable subject tracking
- Hybrid content creators producing 4K and 6K footage alongside high-resolution stills
- Enthusiasts upgrading from the EOS R6 Mark II who want faster AF and more resolution
Sony A9 III (2023)
- Professional sports photographers who need zero blackout and 120fps burst
- Wildlife photographers who demand the most advanced Sony AF available
- Photojournalists who need flash sync at any shutter speed
- A9 II owners upgrading to the world's first full-frame global shutter
Quick take: The eos r6 mark iii has the highest resolution at 32mp; the eos r6 mark iii is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | EOS R6 Mark III (2025) | Sony A9 III (2023) |
|---|---|---|
| Price | £2,799 | £5,999 |
| Sensor | 32.5MP full-frame stacked CMOS | 24.6MP full-frame Exmor RS CMOS (global shutter) |
| Resolution | 32.5MP | 24.6MP |
| Video | 4K 60fps oversampled from 7K, 6K RAW internal | 4K/120p, 4K/60p, 1080p/240p |
| Autofocus | Dual Pixel CMOS AF II — deep-learning subject detection for people, animals and vehicles, up to 40fps tracking | AI subject recognition AF, 759-point phase-detect |
| Stabilisation | In-body 5-axis IS, up to 8.5 stops | 8-stop IBIS |
| Burst Rate | 40fps (electronic shutter), 12fps (mechanical) | 120fps blackout-free electronic |
| Battery Life | ~580 shots (CIPA, LP-E6P) | 530 shots (CIPA) |
| Weight | 670g (body with battery and card) | 703g body only |
| Dimensions | 138.4 × 98.4 × 88.4mm | 136.1 × 96.9 × 82.9mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | EVF, 5.76M-dot, up to 120fps | 0.64" Quad-XGA OLED EVF, 9.44M dots |
| Screen | 3.2-inch vari-angle touchscreen, 2.1M-dot | 3.2" fully articulating touchscreen |
| Mount | Canon RF | Sony FE (E-mount) |
| Memory Cards | Dual SD / SDHC / SDXC (UHS-II) | Dual CFexpress Type A / SD UHS-II |
| Connectivity | USB-C, Wi-Fi 6, Bluetooth 5.0, 2.5GbE | USB-C 3.2, HDMI A, Wi-Fi 6, Bluetooth 5.3 |
Suitability by genre
| Genre | EOS R6 Mark III | Sony A9 III |
|---|---|---|
| Sports & Action | ||
| Wildlife | ||
| Vlogging & Video | ||
| Portrait | ||
| Landscape | — | |
| Travel | ||
| Street | — | |
| Casual | — | |
| Wedding & Events | — |
GearScore™ suitability scores are based on aggregated purchaser reviews weighted by photography genre. See how scores are calculated →
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Camera family history