Canon
EOS R5
45MP full-frame hybrid with 8K RAW, 4K 120p, strong AF, and 8-stop in-body stabilization.
$3,899
Released Jul 2020
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
EOS R6 Mark III is 5.3 years newer.
Wins
EOS R5
Wins
EOS R6 Mark III
9 categories tied
TL;DR — Key differences
- BEOS R6 Mark III has higher Burst (electronic) (40 fps vs 20 fps)
- AEOS R5 has higher EVF resolution (5,760,000 vs 3,690,000)
- AEOS R5 has higher Resolution (45 MP vs 32.5 MP)
- BEOS R6 Mark III has higher Battery life (CIPA) (640 shots vs 490 shots)
- BEOS R6 Mark III has higher ISO max (native) (64,000 vs 51,200)
Key specs at a glance
Size and weight, to scale
EOS R5
139 × 98 × 88 mm
738 g (1.63 lb / 26.03 oz)
EOS R6 Mark III
138 × 98 × 88 mm
699 g (1.54 lb / 24.66 oz)
EOS R5 is 1mm shorter than EOS R6 Mark III.
EOS R5 is 39 g heavier than EOS R6 Mark III.
Depth (front-to-back): 88mm EOS R5 · 88mm EOS R6 Mark III
Back view, to scale
Width × Height — same proportions as the front of the body.
EOS R5
139 × 98 mm
EOS R6 Mark III
138 × 98 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
EOS R5
139 × 88 mm
EOS R6 Mark III
138 × 88 mm
Sensor size, to scale
EOS R5
36 × 24 mm · Full Frame
864 mm² area
EOS R6 Mark III
35.9 × 23.9 mm · Full Frame
858 mm² area
Lens ecosystem
Native lens selection
EOS R5
✓ more lensesCanon RF
105+
native lenses available
EOS R6 Mark III
✓ more lensesCanon RF
105+
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 R5
Dimensions (W×H×D mm)
Adds 138.5, 97.5, 88
EVF resolution
5,760,000 vs 3,690,000 — higher is better
Codecs
Adds RAW
Resolution
45 MP vs 32.5 MP — higher is better
RAW buffer depth
180 frames vs 150 frames — higher is better
Reasons to choose
EOS R6 Mark III
Dimensions (W×H×D mm)
Adds 138.4, 98.4, 88.4
Codecs
Adds CRM, XF-HEVC S, XF-AVC S
Subject recognition
Adds Horses, Cars, Motorbikes…
AF low-light limit
-6.5 EV vs -6 EV — lower is better
Burst (electronic)
40 fps vs 20 fps — higher is better
Pre-Capture / Pre-Release
Only EOS R6 Mark III supports it
Battery life (CIPA)
640 shots vs 490 shots — higher is better
ISO max (native)
64,000 vs 51,200 — 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 R5
Pros
- ✓45MP sensor balances resolution and speed
- ✓8K RAW and 4K 120p internal video
- ✓Dual Pixel CMOS AF II with advanced subject tracking
- ✓8-stop IBIS
- ✓CFexpress Type B plus SD UHS-II storage
Cons
- –Heat limits can matter for extended high-end video
- –Battery life is modest
- –Still expensive versus newer enthusiast bodies
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
Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for video, EOS R5 or EOS R6 Mark III?
EOS R5 scores 9.5/10 versus 6.5/10 for EOS R6 Mark III — 8K recording for future-proof footage.
What's the resolution difference between the EOS R5 and EOS R6 Mark III?
EOS R5 is 45 MP and EOS R6 Mark III is 32.5 MP, so the EOS R5 captures more detail for cropping and large prints.
Do the EOS R5 and EOS R6 Mark III have in-body image stabilization?
EOS R5 has 8-stop in-body image stabilization, while eOS R6 Mark III has 8.5-stop in-body image stabilization.
Which shoots faster bursts — the EOS R5 or the EOS R6 Mark III?
EOS R5 reaches 20 fps electronic. EOS R6 Mark III reaches 40 fps electronic.
What's the weight difference between the EOS R5 and EOS R6 Mark III?
EOS R5 weighs 738 g and EOS R6 Mark III weighs 699 g, so the EOS R6 Mark III is 39 g lighter.
Do the EOS R5 and EOS R6 Mark III record 4K video?
EOS R5: 8K RAW (max), 4K up to 120p. EOS R6 Mark III: 4K up to 120p.
Are the EOS R5 and EOS R6 Mark III weather sealed?
EOS R5: Yes. EOS R6 Mark III: Yes.
Which has better battery life?
Rated battery life is 490 shots (CIPA) for the EOS R5 and 640 shots for the EOS R6 Mark III, giving the EOS R6 Mark III the edge.
How much does each cost?
EOS R5 launched at $3,899 and EOS R6 Mark III at $2,799. The EOS R6 Mark III is $1,100 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of Canon press materials.