Canon EOS R3vs A6400
Canon
Canon EOS R3 (2021)
Starting from £5999 new
Best for Sports & photojournalism professionals
View Canon EOS R3
GearScore™ Verdict — 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.
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)
- Professional sports and photojournalism photographers
- Canon users who need the fastest burst and most reliable AF in the system
- R5 users who want a pro-grade grip and faster shooting speed
- Event photographers who need eye-controlled AF and dual card slots
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 a6400 has the highest resolution at 24mp; the a6400 is the most affordable; only the canon eos r3 is weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | Canon EOS R3 (2021) | A6400 (2019) |
|---|---|---|
| Price | £5,999 | £899 |
| Sensor | 24.1MP full-frame BSI stacked CMOS | 24.2MP APS-C Exmor CMOS BSI |
| Resolution | 24.1MP | 24.2MP |
| Video | 6K RAW, 4K/120p, 1080p/180p | 4K/30p (6K oversampled, no crop), 1080p/120p slow-motion |
| Autofocus | Dual Pixel CMOS AF II with Eye Control AF | Phase-detect, 425 points, real-time Eye AF & animal AF |
| Stabilisation | 8-stop IBIS | None (no IBIS) |
| Burst Rate | 30fps electronic / 12fps mechanical | 11fps mechanical, 8fps with AF tracking |
| Battery Life | 620 shots (CIPA) | ~410 shots (CIPA) |
| Weight | 1015g body only | 403g (body, battery, card) |
| Dimensions | 150.0 × 142.6 × 87.2mm | 120.0 × 66.9 × 59.7mm |
| Weather Sealed | Yes | No |
| Viewfinder | 0.76" OLED EVF, 5.76M dots, 120fps | EVF, 2.36M dots, 0.70× magnification |
| Screen | 3.2" fully articulating touchscreen | 3.0" tilting touchscreen, 180° flip for selfie/vlog, 921k dots |
| Mount | Canon RF | Sony E-mount |
| Memory Cards | Dual CFexpress Type B | Single SD UHS-I |
| Connectivity | USB-C 3.2, HDMI full-size, Wi-Fi 6, Bluetooth, LAN | Micro-USB, Wi-Fi, Bluetooth, NFC |
Suitability by genre
| Genre | Canon EOS R3 | A6400 |
|---|---|---|
| Sports & Action | — | |
| Wildlife | ||
| Photojournalism | — | |
| Vlogging & Video | — | |
| Wedding & Events | — | |
| Travel | ||
| Video | — | |
| Street | — | |
| Portrait | — |
GearScore™ suitability scores are based on aggregated purchaser reviews weighted by photography genre. See how scores are calculated →
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