Decision tools · Compare
Z5 vs OM-3
Quick take: The Z5 has the highest resolution at 24MP.
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?
Z5 — Entry-Level Full-Frame & Dslr Switchers: The most affordable route into full-frame Z — dual card slots, IBIS, and a capable sensor at an accessible price.
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
Z5 (2020)
is the right camera for you if…
- DSLR photographers switching to full-frame mirrorless for the first time
- Enthusiasts who want full-frame image quality on a tighter budget
- Photographers stepping up from APS-C who don't need fast burst or 4K
- Z5 II shoppers on a budget — the original Z5 is now excellent value used
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 | Z5Nikon · 2020 | OM-3OM System · 2025 |
|---|---|---|
| Price | £1,249Best | £1,649 |
| Sensor | 24.3MP Full-Frame BSI CMOS | 20.4MP Live MOS Micro Four Thirds |
| Resolution | 24.3MPBest | 20.4MP |
| Video | 4K/30p (with crop), 1080p/60p | 4K/60p (10-bit), C4K/30p, 1080p/120p |
| Autofocus | Hybrid AF — 273 phase-detect points, eye/subject detection | Phase-detect AF — subject recognition (human, animal, bird, vehicle) |
| Stabilisation | IBIS — up to 5 stops | IBIS — up to 6.5 stops (7.5 stops with Sync IS lenses) |
| Burst Rate | 4.5fps | 10fps mechanical, 30fps electronic with AFBest |
| Battery Life | ~470 shots (CIPA)Best | ~400 shots (CIPA) |
| Weight | 590g (body only) | 414g (with battery and card)Best |
| Dimensions | 134 × 100.5 × 69.5mm | 122.3 × 84.6 × 49.4mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | EVF, 3.69M dots, 0.8× magnification | EVF, 2.36M dots, 0.74× magnification |
| Screen | 3.2" tilting touchscreen | 3.0" fully articulating touchscreen |
| Mount | Nikon Z mount | Micro Four Thirds |
| Memory Cards | Dual SD UHS-II slots | Single SD UHS-II slot |
| Connectivity | USB-C, Wi-Fi, Bluetooth | 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
Z5
OM-3
Portrait
7.7/10
7.3/10
Street
6.1/10
6.9/10
Travel
6.1/10
6.9/10
Wedding & Events
7.3/10
6.8/10
Filmmaking
6.1/10
6.7/10
Documentary
6.7/10
7.9/10
Sports & Action
6.4/10
8.9/10
Landscape
6.1/10
6.2/10
Wildlife
6.8/10
9.0/10
Casual
5.2/10
5.8/10
Food
6.6/10
7.3/10
Macro
6.4/10
8.2/10
Architecture
6.0/10
6.3/10
Astrophotography
6.4/10
6.1/10
Vlogging & Video
—
6.7/10
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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