OM-1vs A6400
Which should you buy?
Wildlife, Sport, Outdoor — OM-1 (2022): OM System's statement camera — class-leading weather sealing and the best IBIS in the business.
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
OM-1 (2022)
- Wildlife and bird photographers who need fast burst and pro weather sealing
- Outdoor photographers who work in challenging conditions
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 om-1 is weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | OM-1 (2022) | A6400 (2019) |
|---|---|---|
| Price | £1,299 | £899 |
| Sensor | Micro Four Thirds Live MOS stacked BSI | 24.2MP APS-C Exmor CMOS BSI |
| Resolution | 20.4MP | 24.2MP |
| Video | 4K 60fps 10-bit | 4K/30p (6K oversampled, no crop), 1080p/120p slow-motion |
| Autofocus | 1053-point cross-type phase-detect, AI subject recognition | Phase-detect, 425 points, real-time Eye AF & animal AF |
| Stabilisation | 5-axis IBIS, 7.0 stops (8 stops with sync IS) | None (no IBIS) |
| Burst Rate | 10fps mechanical, 50fps electronic, 120fps Pro Capture | 11fps mechanical, 8fps with AF tracking |
| Battery Life | 520 shots (CIPA) | ~410 shots (CIPA) |
| Weight | 599g (body only) | 403g (body, battery, card) |
| Dimensions | 134.8 × 91.6 × 72.7mm | 120.0 × 66.9 × 59.7mm |
| Weather Sealed | Yes | No |
| Viewfinder | EVF 0.83× 5.76M-dot | EVF, 2.36M dots, 0.70× magnification |
| Screen | 3.0" fully articulating touchscreen, 1.62M-dot | 3.0" tilting touchscreen, 180° flip for selfie/vlog, 921k dots |
| Mount | Micro Four Thirds | Sony E-mount |
| Memory Cards | 2× SD UHS-II / CFexpress Type B | Single SD UHS-I |
| Connectivity | Wi-Fi 5GHz, Bluetooth 5.0, USB-C 3.1, HDMI, 3.5mm mic/headphone | Micro-USB, Wi-Fi, Bluetooth, NFC |
Suitability by genre
| Genre | OM-1 | A6400 |
|---|---|---|
| Video | — | |
| Street | — | |
| Portrait | — | |
| Travel | — | |
| Wildlife | — |
More comparisons with OM-1
Camera family history