Decision tools · Compare
OM-1 vs OM-3
Quick take: The OM-3 is the most affordable.
16 specs side by side·15 genres scored·UK prices from Wex Photo Video and Clifton Cameras
How to read this page. Highlighted cells win that row on the spec alone. Genre scores are the engine's base scores (enthusiast, photo and video); Camera Match re-weights them for your level and priorities. Price buttons are affiliate links; the price you pay is the same.
OM System
OM-3 2025
Best for Travel, outdoor & adventure photography
£1649
new today at Clifton Cameras
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Verdictwhich should you buy?
OM-1 — Wildlife, Sport, Outdoor: OM System's statement camera — class-leading weather sealing and the best IBIS in the business.
OM-3 — Travel, Outdoor & Adventure Photography: The ideal mid-range OM System camera — weather sealed, class-leading IBIS, and superb computational features in a compact body.
Who should buy what
OM-1 (2022)
is the right camera for you if…
- Wildlife and bird photographers who need fast burst and pro weather sealing
- Outdoor photographers who work in challenging conditions
OM-3 (2025)
is the right camera for you if…
- 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
Full specificationsthe better value in each row is highlighted
| Specification | OM-1OM System · 2022 | OM-3OM System · 2025 |
|---|---|---|
| Price | £299Best | £1,649 |
| Sensor | Micro Four Thirds Live MOS stacked BSI | 20.4MP Live MOS Micro Four Thirds |
| Resolution | 20.4MP | 20.4MP |
| Video | 4K 60fps 10-bit | 4K/60p (10-bit), C4K/30p, 1080p/120p |
| Autofocus | 1053-point cross-type phase-detect, AI subject recognition | Phase-detect AF — subject recognition (human, animal, bird, vehicle) |
| Stabilisation | 5-axis IBIS, 7.0 stops (8 stops with sync IS) | IBIS — up to 6.5 stops (7.5 stops with Sync IS lenses) |
| Burst Rate | 10fps mechanical, 50fps electronic, 120fps Pro Capture | 10fps mechanical, 30fps electronic with AF |
| Battery Life | 520 shots (CIPA)Best | ~400 shots (CIPA) |
| Weight | 599g (body only) | 414g (with battery and card)Best |
| Dimensions | 134.8 × 91.6 × 72.7mm | 122.3 × 84.6 × 49.4mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | EVF 0.83× 5.76M-dot | EVF, 2.36M dots, 0.74× magnification |
| Screen | 3.0" fully articulating touchscreen, 1.62M-dot | 3.0" fully articulating touchscreen |
| Mount | Micro Four Thirds | Micro Four Thirds |
| Memory Cards | Dual SD UHS-II slots | Single SD UHS-II slot |
| Connectivity | Wi-Fi 5GHz, Bluetooth 5.0, USB-C 3.1, HDMI, 3.5mm mic/headphone | USB-C, Wi-Fi, Bluetooth |
Wins the row — price, resolution, burst, battery, weight and sealing are compared; text specs aren't ranked.
How they score by genreengine base scores out of 10
Genre
OM-1
OM-3
Portrait
7.3/10
7.3/10
Street
6.5/10
6.9/10
Travel
6.4/10
6.9/10
Wedding & Events
7.6/10
6.8/10
Vlogging & Video
6.4/10
6.7/10
Filmmaking
6.6/10
6.7/10
Documentary
7.6/10
7.9/10
Sports & Action
9.2/10
8.9/10
Landscape
6.0/10
6.2/10
Wildlife
9.0/10
9.0/10
Casual
5.6/10
5.8/10
Food
7.1/10
7.3/10
Macro
8.1/10
8.2/10
Architecture
6.1/10
6.3/10
Astrophotography
5.9/10
6.1/10
Scores come from the same engine as Camera Match: verified specifications weighted by what each genre needs, with documented adjustments. The product page and this table show the enthusiast base score. See how scores are calculated →
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