Canon EOS R3vs Z6 IIIvs A6400
Canon
Canon EOS R3 (2021)
From £5999
Best for Sports & photojournalism professionals
View Canon EOS R3
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 Video & Action — Z6 III (2024): Partial-stacked FF sensor for near-zero blackout, 6K RAW video, and 60fps burst — Nikon's most capable hybrid.
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
Z6 III (2024)
- You need the best all-round full-frame camera in Nikon's Z system
- You shoot in challenging or low light and need exceptional high-ISO performance
- You want a hybrid body that genuinely excels at both professional stills and video
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 z6 iii has the highest resolution at 24mp; the a6400 is the most affordable; only the canon eos r3, z6 iii are weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | Canon EOS R3 (2021) | Z6 III (2024) | A6400 (2019) |
|---|---|---|---|
| Price | £5,999 | £2,199 | £899 |
| Sensor | 24.1MP full-frame BSI stacked CMOS | 24.5MP Full-frame Partial-stacked CMOS | 24.2MP APS-C Exmor CMOS BSI |
| Resolution | 24.1MP | 24.5MP | 24.2MP |
| Video | 6K RAW, 4K/120p, 1080p/180p | 6K/60p RAW, 4K/120p, 4K/60p oversampled, N-Log, 10-bit | 4K/30p (6K oversampled, no crop), 1080p/120p slow-motion |
| Autofocus | Dual Pixel CMOS AF II with Eye Control AF | Phase-detect, 273 points, subject detection (human/animal/vehicle/aircraft) | Phase-detect, 425 points, real-time Eye AF & animal AF |
| Stabilisation | 8-stop IBIS | 5-axis IBIS, 6.0 stops | None (no IBIS) |
| Burst Rate | 30fps electronic / 12fps mechanical | 20fps mechanical, 60fps electronic | 11fps mechanical, 8fps with AF tracking |
| Battery Life | 620 shots (CIPA) | ~380 shots (CIPA) | ~410 shots (CIPA) |
| Weight | 1015g body only | 760g body only | 403g (body, battery, card) |
| Dimensions | 150.0 × 142.6 × 87.2mm | 138.5 × 101.5 × 74.0mm | 120.0 × 66.9 × 59.7mm |
| Weather Sealed | Yes | Yes | No |
| Viewfinder | 0.76" OLED EVF, 5.76M dots, 120fps | EVF, 5.76M dots, 0.90× magnification | 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 | Nikon Z-mount (full-frame) | Sony E-mount |
| Memory Cards | Dual CFexpress Type B | Dual slots: 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, Bluetooth, Wi-Fi | Micro-USB, Wi-Fi, Bluetooth, NFC |
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