OM System OM-3 vs OM System OM-5
Real-world comparison — specs, sensor size, autofocus, video, ownership reality. Adjust the workflow lens below to see how each body lands for travel, hybrid, wildlife, or studio use.
Visual
Estimated
Ranked
OM System OM-3
Micro 4/3 / 620g
OM System OM-5
Micro 4/3 / 620g
Workflow lens
OM System OM-5 is the stronger fit for travel and everyday carry.
OM System OM-5 leads on carry and size by 16 points.
Camera size studio
Relative body dimensions
Front, back and top views are drawn from external dimensions so the size relationship stays proportional.
View
Mode
OM System OM-3
Front view / 132 x 92mm
132 x 92 x 72mm
OM System OM-5
Front view / 132 x 92mm
132 x 92 x 72mm
Width
Height
Depth
Weight
External dimensions and carry delta
OM System OM-3 and OM System OM-5 share the same external size profile in the current data model.
OM System OM-3
OM System OM-5
Class benchmarks
Sensor comparison
Sensor size to scale
×2 crop
×2 crop
All 2 use Micro 4/3 sensors — sensor size is a wash here.
Decision matrix
Scores tuned for travel
Highlighted specs
Only specs that change the decision
Sensor
20MP stacked MFT
Sensor
20MP MFT
Weather sealing
IP53
Stabilisation
7.5 stops
Community comparison
Owner consensus · not specsCommunity comparison appears once owners vote on these products — 6 more votes across the pair will unlock it.
Where to buy
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OM System
OM System OM-3
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OM System
OM System OM-5
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Common questions
Answers from this comparison
Drawn from the products' specs and category facts — same logic the comparison engine uses for its verdict.
Is the OM System OM-3 better than the OM System OM-5?
Neither product is universally better — the right answer depends on what you shoot. Walk the use-case verdicts in the comparison studio above to see which body lines up with your specific work.
Is the OM System OM-3 worth the extra money over the OM System OM-5?
The OM System OM-3 costs roughly $745 more. Whether the premium earns its keep depends on whether you actually use the capabilities it adds. Read the strengths and limitations sections of each product page before committing.
Which is better for travel — the OM System OM-3 or the OM System OM-5?
For travel, the combination of weight, weather sealing, and lens flexibility matters more than headline specs. The carry-envelope module in the comparison above breaks down the practical kit weight of each body with a normal lens attached.