Upgrade Guide

OM System OM-3→OM System OM-1

Is it worth upgrading? Spec analysis, key improvements, and our verdict.

You own

OM System

OM-3

£999

2024

→

Upgrade to

OM System

OM-1

£1299 (+£300)

2022

⚖️

Situational

One clear hardware improvement over the OM-3. Worth it if that specific upgrade aligns with what you shoot.

What's new in the OM-1

Unchanged or similar

Suitability by genre

Full spec comparison

Spec	OM-3	OM-1
Price	£999	£1,299
Released	2024	2022	↓
Sensor	20.4MP Live MOS Micro Four Thirds	Micro Four Thirds Live MOS stacked BSI
Resolution	20MP	20MP
Video	4K/60p (10-bit), C4K/30p, 1080p/120p	4K 60fps 10-bit
Autofocus	Phase-detect AF — subject recognition (human, animal, bird, vehicle)	1053-point cross-type phase-detect, AI subject recognition
Stabilisation	IBIS — up to 6.5 stops (7.5 stops with Sync IS lenses)	5-axis IBIS, 7.0 stops (8 stops with sync IS)
Burst Rate	10fps mechanical, 30fps electronic with AF	10fps mechanical, 50fps electronic, 120fps Pro Capture
Battery Life	~400 shots (CIPA)	520 shots (CIPA)	↑
Weight	414g (with battery)	599g (body only)	↓
Weather Sealed	Yes	Yes
Viewfinder	EVF, 2.36M dots, 0.74× magnification	EVF 0.83× 5.76M-dot
Screen	3.0" fully articulating touchscreen	3.0" fully articulating touchscreen, 1.62M-dot
Mount	Micro Four Thirds	Micro Four Thirds
Memory Cards	Single SD UHS-II slot	2× SD UHS-II / CFexpress Type B

Compare side-by-side

See OM-3 and OM-1 next to each other with our interactive comparison tool.

Get a personalised upgrade score

Tell us what you shoot and we'll score the OM-1 against your specific genres — not just specs.

Other upgrades from the OM-3

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Camera family history