Canon
EOS R3
Pro 24MP full-frame stacked-sensor body built for sports, news, wildlife, and high-speed hybrid capture.
$5,999
Launch priceReleased Sep 2021
OM System
OM-1 II
Flagship MFT with stacked sensor, 120fps, and pro wildlife features.
$2,399
Launch priceReleased Feb 2024
OM-1 II is 2.4 years newer.
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Wins
EOS R3
Wins
OM-1 II
5 categories tied
Which would you choose?
TL;DR — Key differences
- AEOS R3 has higher Max video bit rate (2600 Mbps vs 150 Mbps)
- BOM-1 II has higher Burst (electronic) (120 fps vs 30 fps)
- AEOS R3 has higher 4K max frame rate (120 fps vs 60 fps)
- AEOS R3 has higher Card slots (2 vs 1)
- BOM-1 II has lower Weight (599 g vs 1015 g)
Key specs at a glance
Size and weight, to scale
📸 Snap this size diff to shareEOS R3
150 × 143 × 87 mm
1015 g (2.24 lb / 35.80 oz)
Credit card
85.6 × 54 mm
for scale
OM-1 II
135 × 92 × 73 mm
599 g (1.32 lb / 21.13 oz)
EOS R3 is 15mm wider, 51mm taller, and 15mm thicker than OM-1 II.
EOS R3 is 416 g heavier than OM-1 II.
Depth (front-to-back): 87mm EOS R3 · 73mm OM-1 II
Sensor size, to scale
EOS R3
36 × 24 mm · Full Frame
864 mm² area
OM-1 II
17.4 × 13 mm · Compact / large-type
226 mm² area
3.8× larger sensor area = shallower depth of field and better low-light performance.
Lens ecosystem
Native lens selection
EOS R3
Canon RF
105+
native lenses available
OM-1 II
✓ more lensesMicro Four Thirds
130+
native lenses available
Counts include current first-party and major third-party native autofocus lenses.
Use-case scoring
Which one for what?
Algorithmic scores from verified specs · 10 = best in class
Why pick one over the other
Reasons to choose
EOS R3
Dimensions (W×H×D mm)
Adds 150, 142.6, 87.2
Max video bit rate
2600 Mbps vs 150 Mbps — higher is better
Subject recognition
Adds Dogs, Cats, Motorsport vehicles
AA filter
Only EOS R3 supports it
4K max frame rate
120 fps vs 60 fps — higher is better
Internal RAW video
Only EOS R3 supports it
Card slots
2 vs 1 — higher is better
Card types
Adds CFexpress Type B
Reasons to choose
OM-1 II
Dimensions (W×H×D mm)
Adds 134.8, 91.6, 72.7
Burst (electronic)
120 fps vs 30 fps — higher is better
Subject recognition
Adds Animals, Motorsports, Airplanes…
AF low-light limit
-8 EV vs -7.5 EV — lower is better
Pre-Capture / Pre-Release
Only OM-1 II supports it
Card types
Adds SD UHS-I
Weight
599 g vs 1015 g — lower is better
Codecs
Adds MOV
Both cameras share
- ✓ISO max (native) — Both 102,400
- ✓AF points / zones — Both 1053
- ✓AF frame coverage — Both 100 %
- ✓Eye AF — Both support eye af
- ✓Animal / bird AF — Both support animal / bird af
- ✓In-body stabilization (IBIS) — Both support in-body stabilization (ibis)
Pros & cons at a glance
Editorially curated highlights and trade-offs.
EOS R3
Pros
- ✓30fps electronic burst from a stacked full-frame sensor
- ✓Exceptional low-light AF down to -7.5 EV
- ✓Integrated pro body with large LP-E19 battery
- ✓6K RAW video and 4K 120p
- ✓Rugged weather-sealed construction
Cons
- –24MP resolution trails higher-detail rivals
- –Large integrated-grip body
- –Expensive compared with enthusiast full-frame bodies
OM-1 II
Pros
- ✓120fps stills
- ✓Stacked MFT
- ✓IP53 weather sealing
- ✓Computational features
Cons
- –MFT sensor size
- –Smaller ecosystem
- –Menu complexity
Decided which one is right for you?
Compare live prices for the EOS R3 and OM-1 II at major authorized retailers.
Canon EOS R3
OM System OM-1 II
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for landscape, EOS R3 or OM-1 II?
EOS R3 scores 7.0/10 versus 2.5/10 for OM-1 II — Full-frame sensor — wider dynamic range.
What's the resolution difference between the EOS R3 and OM-1 II?
EOS R3 is 24.1 MP and OM-1 II is 20.4 MP, so the EOS R3 captures more detail for cropping and large prints.
Do the EOS R3 and OM-1 II have in-body image stabilization?
EOS R3 has 8-stop in-body image stabilization, while OM-1 II has 8.5-stop in-body image stabilization.
Which shoots faster bursts — the EOS R3 or the OM-1 II?
EOS R3 reaches 30 fps electronic. OM-1 II reaches 120 fps electronic.
What's the weight difference between the EOS R3 and OM-1 II?
EOS R3 weighs 1015 g and OM-1 II weighs 599 g, so the OM-1 II is 416 g lighter.
Do the EOS R3 and OM-1 II record 4K video?
EOS R3: 6K RAW (max), 4K up to 120p. OM-1 II: 4K up to 60p.
Are the EOS R3 and OM-1 II weather sealed?
EOS R3: Yes. OM-1 II: Yes.
Which has better battery life?
Rated battery life is 620 shots (CIPA) for the EOS R3 and 520 shots for the OM-1 II, giving the EOS R3 the edge.
How much does each cost?
EOS R3 launched at $5,999 and OM-1 II at $2,399. The OM-1 II is $3,600 less.
Can't decide between two? Compare a third camera.
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Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed July 2026.