EOS M3vs A6400
GearScore™ Verdict — Which should you buy?
Casual & Everyday — EOS M3 (2015): The EOS M3 was a meaningful upgrade over the original EOS M — bringing 24MP, a tilting touchscreen, and improved Hybrid CMOS AF III. Video tops out at 1080p/30p and burst shooting is modest, but for stills photographers wanting affordable APS-C quality, the M3 is a competent used-market option.
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
EOS M3 (2015)
- Photographers who want affordable 24MP APS-C quality on a budget
- Casual shooters who want a compact EF-M camera with a tilting screen
- Users looking for an affordable entry into the Canon EF-M ecosystem
- Used-market buyers wanting a capable but inexpensive mirrorless
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 eos m3 is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | EOS M3 (2015) | A6400 (2019) |
|---|---|---|
| Price | £150 | £899 |
| Sensor | 24.2MP APS-C CMOS | 24.2MP APS-C Exmor CMOS BSI |
| Resolution | 24.2MP | 24.2MP |
| Video | 1080p/30p | 4K/30p (6K oversampled, no crop), 1080p/120p slow-motion |
| Autofocus | Hybrid CMOS AF III (phase-detect + contrast-detect) | Phase-detect, 425 points, real-time Eye AF & animal AF |
| Stabilisation | — | None (no IBIS) |
| Burst Rate | 4.2fps | 11fps mechanical, 8fps with AF tracking |
| Battery Life | ~250 shots (CIPA) | ~410 shots (CIPA) |
| Weight | 366g (body only) | 403g (body, battery, card) |
| Dimensions | 110.9 × 68.0 × 44.4mm | 120.0 × 66.9 × 59.7mm |
| Weather Sealed | No | No |
| Viewfinder | None (optional EVF-DC1 accessory) | EVF, 2.36M dots, 0.70× magnification |
| Screen | 3.0" tilting touchscreen, 1.04M dots | 3.0" tilting touchscreen, 180° flip for selfie/vlog, 921k dots |
| Mount | Canon EF-M mount | Sony E-mount |
| Memory Cards | Single SD UHS-I slot | Single SD UHS-I |
| Connectivity | USB, Wi-Fi, NFC | Micro-USB, Wi-Fi, Bluetooth, NFC |
Suitability by genre
| Genre | EOS M3 | A6400 |
|---|---|---|
| Casual | — | |
| Travel | ||
| Portrait | ||
| Street | ||
| Vlogging & Video | — | |
| Sports & Action | — | |
| Video | — | |
| Wildlife | — |
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