Canon EOS R3vs Canon EOS R5 Mark IIvs A6400
Canon
Canon EOS R3 (2021)
From £5999
Best for Sports & photojournalism professionals
View Canon EOS R3
Canon
Canon EOS R5 Mark II (2024)
From £4299
Best for Hybrid shooters & professionals
View Canon EOS R5 Mark II
Which should you buy?
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.
Hybrid Shooters & Professionals — Canon EOS R5 Mark II (2024): The most complete hybrid camera Canon has ever made — 45MP stacked BSI, 30fps burst, 8K/60p RAW, and Canon's legendary Dual Pixel AF in one body.
Content Creation & Vlogging — A6400 (2019): The best value APS-C Sony you can buy — especially used. Real-time Eye AF at this price point was transformative when it launched and still makes it one of the most reliable autofocus systems in the lineup.
Who should buy what
Canon EOS R3 (2021)
- You shoot sport, motorsport, wildlife, or news at a professional level
- You need Canon's most reliable and fastest autofocus available
- You need extreme weather sealing for demanding shooting conditions
Canon EOS R5 Mark II (2024)
- You're a working photographer or filmmaker who needs high-resolution stills and professional video
- You shoot commercial, editorial, or high-end portrait work
- You want the absolute best Canon mirrorless has to offer
A6400 (2019)
- Vloggers and content creators who need a flip screen and reliable AF
- Photographers upgrading from a compact or smartphone
- Beginners who want room to grow into a full E-mount lens ecosystem
- Anyone prioritising autofocus performance at an accessible price
Quick take: The canon eos r5 mark ii has the highest resolution at 45mp; the a6400 is the most affordable; only the canon eos r3, canon eos r5 mark ii are weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | Canon EOS R3 (2021) | Canon EOS R5 Mark II (2024) | A6400 (2019) |
|---|---|---|---|
| Price | £5,999 | £4,299 | £899 |
| Sensor | 24.1MP full-frame BSI stacked CMOS | 45MP full-frame BSI stacked CMOS | 24.2MP APS-C Exmor CMOS BSI |
| Resolution | 24.1MP | 45.0MP | 24.2MP |
| Video | 6K RAW, 4K/120p, 1080p/180p | 8K/60p RAW, 4K/120p, Cinema RAW Light | 4K/30p (6K oversampled, no crop), 1080p/120p slow-motion |
| Autofocus | Dual Pixel CMOS AF II with Eye Control AF | Dual Pixel CMOS AF II, AI subject tracking | Phase-detect, 425 points, real-time Eye AF & animal AF |
| Stabilisation | 8-stop IBIS | 8-stop IBIS (coordinated with IS lenses) | None (no IBIS) |
| Burst Rate | 30fps electronic / 12fps mechanical | 30fps electronic / 12fps mechanical | 11fps mechanical, 8fps with AF tracking |
| Battery Life | 620 shots (CIPA) | 570 shots (CIPA) | ~410 shots (CIPA) |
| Weight | 1015g body only | 746g body only | 403g (body, battery, card) |
| Dimensions | 150.0 × 142.6 × 87.2mm | 138.5 × 101.2 × 93.5mm | 120.0 × 66.9 × 59.7mm |
| Weather Sealed | Yes | Yes | No |
| Viewfinder | 0.76" OLED EVF, 5.76M dots, 120fps | 0.64" OLED EVF, 5.76M dots, 120fps | EVF, 2.36M dots, 0.70× magnification |
| Screen | 3.2" fully articulating touchscreen | 3.2" fully articulating touchscreen | 3.0" tilting touchscreen, 180° flip for selfie/vlog, 921k dots |
| Mount | Canon RF | Canon RF | Sony E-mount |
| Memory Cards | Dual CFexpress Type B | CFexpress Type B + SD UHS-II | Single SD UHS-I |
| Connectivity | USB-C 3.2, HDMI full-size, Wi-Fi 6, Bluetooth, LAN | USB-C 3.2, HDMI full-size, Wi-Fi 6, Bluetooth | Micro-USB, Wi-Fi, Bluetooth, NFC |
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