Canon
EOS R6 Mark III
Hybrid 32.5MP full-frame RF body with 7K RAW video, 40fps electronic burst, 8.5-stop IBIS, and Dual Pixel CMOS AF II.
$2,799
Released Nov 2025
OM System
OM-D E-M1 Mark III
Previous Olympus flagship still capable for wildlife.
$1,799
Released Feb 2020
EOS R6 Mark III is 5.8 years newer.
Wins
EOS R6 Mark III
Wins
OM-D E-M1 Mark III
7 categories tied
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TL;DR — Key differences
- AEOS R6 Mark III has higher Max video bit rate (2600 Mbps vs 150 Mbps)
- AEOS R6 Mark III has higher ISO max (native) (64,000 vs 25,600)
- AEOS R6 Mark III has higher Burst (electronic) (40 fps vs 20 fps)
- AEOS R6 Mark III has higher 4K max frame rate (120 fps vs 60 fps)
- AEOS R6 Mark III has higher Resolution (32.5 MP vs 20.4 MP)
Key specs at a glance
Size and weight, to scale
EOS R6 Mark III
138 × 98 × 88 mm
699 g (1.54 lb / 24.66 oz)
OM-D E-M1 Mark III
134 × 91 × 72 mm
580 g (1.28 lb / 20.46 oz)
EOS R6 Mark III is 4mm wider, 7mm taller, and 16mm thicker than OM-D E-M1 Mark III.
EOS R6 Mark III is 119 g heavier than OM-D E-M1 Mark III.
Depth (front-to-back): 88mm EOS R6 Mark III · 72mm OM-D E-M1 Mark III
Back view, to scale
Width × Height — same proportions as the front of the body.
EOS R6 Mark III
138 × 98 mm
OM-D E-M1 Mark III
134 × 91 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
EOS R6 Mark III
138 × 88 mm
OM-D E-M1 Mark III
134 × 72 mm
Sensor size, to scale
EOS R6 Mark III
35.9 × 23.9 mm · Full Frame
858 mm² area
OM-D E-M1 Mark III
17.3 × 13 mm · Micro Four Thirds
225 mm² area
3.8× larger sensor area = shallower depth of field and better low-light performance.
Lens ecosystem
Native lens selection
EOS R6 Mark III
Canon RF
105+
native lenses available
OM-D E-M1 Mark III
✓ 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 R6 Mark III
Subject recognition
Adds People, Dogs, Cats…
Dimensions (W×H×D mm)
Adds 138.4, 98.4, 88.4
Max video bit rate
2600 Mbps vs 150 Mbps — higher is better
ISO max (native)
64,000 vs 25,600 — higher is better
Codecs
Adds CRM, XF-HEVC S, XF-AVC S
Burst (electronic)
40 fps vs 20 fps — higher is better
4K max frame rate
120 fps vs 60 fps — higher is better
Internal RAW video
Only EOS R6 Mark III supports it
Reasons to choose
OM-D E-M1 Mark III
Subject recognition
Adds Human, Animal, Bird…
Dimensions (W×H×D mm)
Adds 134, 91, 72
AF low-light limit
-7 EV vs -6.5 EV — lower is better
Weight
580 g vs 699 g — lower is better
EVF magnification
0.78 × vs 0.76 × — higher is better
Both cameras share
- ✓AA filter — Both support aa filter
- ✓ISO min (native) — Both 100
- ✓AF points / zones — Both 1053
- ✓AF frame coverage — Both 100 %
- ✓Eye AF — Both support eye af
- ✓Animal / bird AF — Both support animal / bird af
Pros & cons at a glance
Editorially curated highlights and trade-offs.
EOS R6 Mark III
Pros
- ✓32.5MP full-frame sensor
- ✓7K RAW video & 4K 120p
- ✓40fps electronic burst with Pre-Continuous
- ✓8.5-stop IBIS
Cons
- –Single CFexpress Type B + SD slot
- –Smaller LCD than R5 II
- –LP-E6P required for full features
OM-D E-M1 Mark III
Pros
- ✓Pro build
- ✓60fps mode
- ✓Great IBIS
Cons
- –Superseded
- –MFT
- –Older AF
Decided which one is right for you?
Compare live prices for the EOS R6 Mark III and OM-D E-M1 Mark III at major authorized retailers.
Canon EOS R6 Mark III
OM System OM-D E-M1 Mark III
Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for portraits, EOS R6 Mark III or OM-D E-M1 Mark III?
EOS R6 Mark III scores 8.0/10 versus 4.0/10 for OM-D E-M1 Mark III — 32.5MP — ample resolution for portraits.
What's the resolution difference between the EOS R6 Mark III and OM-D E-M1 Mark III?
EOS R6 Mark III is 32.5 MP and OM-D E-M1 Mark III is 20.4 MP, so the EOS R6 Mark III captures more detail for cropping and large prints.
Do the EOS R6 Mark III and OM-D E-M1 Mark III have in-body image stabilization?
EOS R6 Mark III has 8.5-stop in-body image stabilization, while oM-D E-M1 Mark III has 7-stop in-body image stabilization.
Which shoots faster bursts — the EOS R6 Mark III or the OM-D E-M1 Mark III?
EOS R6 Mark III reaches 40 fps electronic. OM-D E-M1 Mark III reaches 20 fps electronic.
What's the weight difference between the EOS R6 Mark III and OM-D E-M1 Mark III?
EOS R6 Mark III weighs 699 g and OM-D E-M1 Mark III weighs 580 g, so the OM-D E-M1 Mark III is 119 g lighter.
Do the EOS R6 Mark III and OM-D E-M1 Mark III record 4K video?
EOS R6 Mark III: 4K up to 120p. OM-D E-M1 Mark III: 4K up to 60p.
Are the EOS R6 Mark III and OM-D E-M1 Mark III weather sealed?
EOS R6 Mark III: Yes. OM-D E-M1 Mark III: Yes.
Which has better battery life?
Rated battery life is 640 shots (CIPA) for the EOS R6 Mark III and 640 shots for the OM-D E-M1 Mark III, giving the OM-D E-M1 Mark III the edge.
How much does each cost?
EOS R6 Mark III launched at $2,799 and OM-D E-M1 Mark III at $1,799. The OM-D E-M1 Mark III is $1,000 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of Canon and OM System press materials.