EOS R6 Mark IIvs A6400vs A6700
Which should you buy?
Portraits & Action — EOS R6 Mark II (2022): 40fps burst, 8-stop IBIS, and Canon's best-in-class Dual Pixel AF — exceptional for action, sports, and portrait work.
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.
All-Round & Video — A6700 (2023): Best-in-class autofocus and 4K/120p video in a compact APS-C body — the standout camera under £1,000.
Who should buy what
EOS R6 Mark II (2022)
- You want a do-everything full-frame body for weddings and events
- You need reliable subject tracking across stills and fast-moving video
- You shoot both photos and video professionally and need a single body that handles both
- You want Canon's colour science with a modern mirrorless system
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
A6700 (2023)
- You want a compact, travel-friendly system without sacrificing autofocus performance
- You're an enthusiast upgrading from an entry-level camera and ready for a more capable body
- You shoot wildlife or sports and want APS-C reach from a lightweight kit
- You create video content and need reliable subject and eye tracking in a small form factor
Quick take: The a6700 has the highest resolution at 26mp; the a6400 is the most affordable; only the eos r6 mark ii is weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | EOS R6 Mark II (2022) | A6400 (2019) | A6700 (2023) |
|---|---|---|---|
| Price | £2,099 | £899 | £999 |
| Sensor | 24.2MP Full-frame BSI CMOS | 24.2MP APS-C Exmor CMOS BSI | 26MP APS-C Exmor R BSI CMOS |
| Resolution | 24.2MP | 24.2MP | 26.0MP |
| Video | 4K/60p 10-bit oversampled, 6K RAW out, FHD/180p | 4K/30p (6K oversampled, no crop), 1080p/120p slow-motion | 4K/120p, 4K/60p oversampled, S-Log3, 10-bit |
| Autofocus | Dual Pixel CMOS AF II, 6072 zones, deep-learning subject tracking | Phase-detect, 425 points, real-time Eye AF & animal AF | 759-point phase-detect, AI subject recognition (human/animal/bird/vehicle) |
| Stabilisation | 5-axis IBIS, 8.0 stops (coordinated with IS lenses) | None (no IBIS) | 5-axis IBIS, 5.0 stops |
| Burst Rate | 12fps mechanical, 40fps electronic | 11fps mechanical, 8fps with AF tracking | 11fps mechanical, 30fps electronic |
| Battery Life | ~760 shots (CIPA) | ~410 shots (CIPA) | ~570 shots (CIPA) |
| Weight | 670g body only | 403g (body, battery, card) | 493g body only |
| Dimensions | 138.4 × 98.4 × 88.4mm | 120.0 × 66.9 × 59.7mm | 122.0 × 69.0 × 75.1mm |
| Weather Sealed | Yes | No | No |
| Viewfinder | EVF, 3.69M dots, 0.76× magnification | EVF, 2.36M dots, 0.70× magnification | EVF, 2.36M dots |
| Screen | 3.0" fully articulating touchscreen | 3.0" tilting touchscreen, 180° flip for selfie/vlog, 921k dots | 3.0" vari-angle touchscreen |
| Mount | Canon RF mount (full-frame) | Sony E-mount | Sony E-mount |
| Memory Cards | Dual SD UHS-II slots | Single SD UHS-I | Single SD UHS-II / CFexpress Type A slot |
| Connectivity | USB-C 3.1, Bluetooth, Wi-Fi | Micro-USB, Wi-Fi, Bluetooth, NFC | USB-C (3.2), Bluetooth, Wi-Fi |
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