Upgrade Guide

OM System OM-5→OM System PEN

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

You own

OM System

OM-5

£899

2022

→

Upgrade to

OM System

PEN

£849 (-£50)

2026

✅

Worthwhile

Clear improvements over the OM-5. Whether it justifies the cost depends on which upgrades matter most to your shooting.

What's new in the PEN

Unchanged or similar

Suitability by genre

Base scores — computed from verified specs for an enthusiast shooting photo and video. The Upgrade Checker adjusts them for your skill level.

Full spec comparison

Spec	OM-5	PEN
Price	£899	£849
Released	2022	2026	↑
Sensor	20.4MP Micro Four Thirds Live MOS	20.4MP Four Thirds Live MOS
Resolution	20MP	20MP
Video	4K/30p, C4K/24p, OM-Log400	4K/C4K, OM-Log400, vertical video support
Autofocus	Phase-detect, 121 all-cross points, subject tracking	Phase-hybrid AF (121 points) with subject detection (people, cats, dogs)
Stabilisation	5-axis IBIS, 7.5 stops (Dual IS with compatible lenses)	5.5-stop IBIS
Burst Rate	30fps electronic, 10fps mechanical	30fps electronic
Battery Life	~370 shots (CIPA)	410 shots (CIPA)	↑
Weight	414g (body only)	393g (with battery and card)	↑
Weather Sealed	Yes	Yes
Viewfinder	EVF, 2.36M dots, 0.74× magnification	EVF, 2.36M dots
Screen	3.0" fully articulating touchscreen	Tilting touchscreen
Mount	Micro Four Thirds	Micro Four Thirds
Memory Cards	Dual SD UHS-II slots	Single SD (UHS-I)

Compare side-by-side

See OM-5 and PEN next to each other with our interactive comparison tool.

Get a personalised upgrade score

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

Other upgrades from the OM-5

Related buying guides

Camera family history