OM-3vs A7R VI
OM System
OM-3 (2024)
Starting from £999 new
Best for Travel, outdoor & adventure photography
View OM-3
Sony
A7R VI (2025)
Starting from £4399 new
Best for Studio, landscape and commercial photographers needing maximum resolution
View A7R VI
GearScore™ Verdict — Which should you buy?
Travel, Outdoor & Adventure Photography — OM-3 (2024): The ideal mid-range OM System camera — weather sealed, class-leading IBIS, and superb computational features in a compact body.
Studio, Landscape And Commercial Photographers Needing Maximum Resolution — A7R VI (2025): The A7R VI cements its place as the resolution flagship of the Sony full-frame range — 61MP, AI-driven autofocus, and 8K video make it as capable for video and action work as it is for studio and landscape photography. The price reflects its position at the top of the lineup, but the capability is hard to match.
Who should buy what
OM-3 (2024)
- Outdoor and adventure photographers who need weather sealing and compact size
- Wildlife and bird photographers wanting improved AF over the OM-5
- Travel shooters who want a rugged, lightweight MFT system
- OM-5 or E-M5 III owners wanting better autofocus without going to the OM-1
A7R VI (2025)
- Studio and commercial photographers who need maximum resolution for large prints and heavy cropping
- Landscape photographers who want best-in-class dynamic range and detail
- Hybrid shooters who need 8K video alongside a 61MP stills sensor
- Professionals upgrading from the A7R V who want faster AI-driven autofocus
Quick take: The a7r vi has the highest resolution at 61mp; the om-3 is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | OM-3 (2024) | A7R VI (2025) |
|---|---|---|
| Price | £999 | £4,399 |
| Sensor | 20.4MP Live MOS Micro Four Thirds | 61MP full-frame stacked back-illuminated CMOS |
| Resolution | 20.4MP | 61.0MP |
| Video | 4K/60p (10-bit), C4K/30p, 1080p/120p | 8K 30fps, 4K 120fps oversampled |
| Autofocus | Phase-detect AF — subject recognition (human, animal, bird, vehicle) | AI processing unit — subject recognition for people, animals, birds and vehicles across the frame |
| Stabilisation | IBIS — up to 6.5 stops (7.5 stops with Sync IS lenses) | In-body 5-axis IS, up to 8.5 stops |
| Burst Rate | 10fps mechanical, 30fps electronic with AF | 8fps mechanical / 7fps electronic with full AF/AE tracking |
| Battery Life | ~400 shots (CIPA) | ~530 shots (CIPA, NP-FZ100) |
| Weight | 414g (with battery) | 723g (body with battery and card) |
| Dimensions | 122.3 × 84.6 × 49.4mm | 131.3 × 96.9 × 82.8mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | EVF, 2.36M dots, 0.74× magnification | EVF, 9.44M-dot, up to 120fps |
| Screen | 3.0" fully articulating touchscreen | 3.2-inch 4-axis multi-angle touchscreen, 3.69M-dot |
| Mount | Micro Four Thirds | Sony FE (full-frame E-mount) |
| Memory Cards | Single SD UHS-II slot | Dual slots — CFexpress Type A / SD (UHS-II) |
| Connectivity | USB-C, Wi-Fi, Bluetooth | USB-C (10Gbps), Wi-Fi 6E, Bluetooth 5.0, 2.5GbE |
Suitability by genre
| Genre | OM-3 | A7R VI |
|---|---|---|
| Travel | ||
| Wildlife | ||
| Landscape | ||
| Street | ||
| Portrait | ||
| Vlogging & Video | ||
| Sports & Action | — | |
| Casual | — |
GearScore™ suitability scores are based on aggregated purchaser reviews weighted by photography genre. See how scores are calculated →
More comparisons with OM-3
Camera family history