Canon
EOS 5D Mark IV
Pro 30MP full-frame DSLR still used for weddings, events, and studio work.
$3,499
Launch priceReleased Aug 2016
Canon
EOS R
Canon’s first full-frame RF mirrorless — launched the RF mount ecosystem.
$2,299
Launch priceReleased Sep 2018
EOS R is 2 years newer.
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Wins
EOS 5D Mark IV
Wins
EOS R
3 categories tied
Which would you choose?
TL;DR — Key differences
- BEOS R has higher IBIS effectiveness (6 stops vs 0 stops)
- BEOS R has higher AF points / zones (5655 vs 61)
- AEOS 5D Mark IV has higher RAW buffer depth (120 frames vs 47 frames)
- AEOS 5D Mark IV has higher Card slots (2 vs 1)
- BEOS R has lower Weight (660 g vs 890 g)
Key specs at a glance
Size and weight, to scale
📸 Snap this size diff to share
EOS 5D Mark IV
151 × 116 × 76 mm
890 g (1.96 lb / 31.39 oz)
Credit card
85.6 × 54 mm
for scale
EOS R
136 × 98 × 84 mm
660 g (1.46 lb / 23.28 oz)
EOS 5D Mark IV is 9mm thinner than EOS R but it is also 15mm wider and 18mm taller.
EOS 5D Mark IV is 230 g heavier than EOS R.
Depth (front-to-back): 76mm EOS 5D Mark IV · 84mm EOS R
Back view, to scale
Width × Height — same proportions as the front of the body.
EOS 5D Mark IV
151 × 116 mm
Credit card
85.6 × 54 mm
EOS R
136 × 98 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
EOS 5D Mark IV
151 × 76 mm
Credit card
85.6 × 54 mm
EOS R
136 × 84 mm
Sensor size, to scale
EOS 5D Mark IV
36 × 24 mm · Full Frame
864 mm² area
EOS R
36 × 24 mm · Full Frame
864 mm² area
Lens ecosystem
Native lens selection
EOS 5D Mark IV
✓ more lensesCanon EF
300+
native lenses available
EOS R
Canon 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 5D Mark IV
Dimensions (W×H×D mm)
Adds 150.7, 116.4, 75.9
Card types
Adds CF, SD UHS-I
RAW buffer depth
120 frames vs 47 frames — higher is better
Codecs
Adds Motion JPEG
Card slots
2 vs 1 — higher is better
Resolution
30.4 MP vs 30.3 MP — higher is better
4K max frame rate
30 fps vs 29.97 fps — higher is better
Reasons to choose
EOS R
AF low-light limit
-6 EV vs -3 EV — lower is better
Subject recognition
Adds Human, Animal, Bird…
IBIS effectiveness
6 stops vs 0 stops — higher is better
Dimensions (W×H×D mm)
Adds 135.8, 98.3, 84.4
Card types
Adds SD, SDHC, SDXC
AF points / zones
5655 vs 61 — higher is better
Eye AF
Only EOS R supports it
Codecs
Adds MP4
Both cameras share
- ✓AA filter — Both support aa filter
- ✓ISO min (native) — Both 100
- ✓Pre-Capture / Pre-Release — Both support pre-capture / pre-release
- ✓Max video bit rate — Both 150 Mbps
- ✓Weather sealing — Both support weather sealing
- ✓EVF magnification — Both 0.71 ×
Pros & cons at a glance
Editorially curated highlights and trade-offs.
EOS 5D Mark IV
Pros
- ✓30MP proven sensor
- ✓Dual Pixel AF in live view
- ✓Rugged pro build
- ✓Huge EF lens ecosystem
Cons
- –DSLR platform aging
- –4K video limited
- –Heavy
EOS R
Pros
- ✓First Canon RF body
- ✓Dual Pixel AF
- ✓Fully articulating screen
Cons
- –No IBIS
- –Single card slot
- –Superseded by R6/R8
Decided which one is right for you?
Compare live prices for the EOS 5D Mark IV and EOS R at major authorized retailers.
Canon EOS 5D Mark IV
Canon EOS R
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for wildlife, EOS 5D Mark IV or EOS R?
EOS R scores 6.5/10 versus 3.0/10 for EOS 5D Mark IV — Bird AF subject recognition.
What's the resolution difference between the EOS 5D Mark IV and EOS R?
EOS 5D Mark IV is 30.4 MP and EOS R is 30.3 MP, so the EOS 5D Mark IV captures more detail for cropping and large prints.
Do the EOS 5D Mark IV and EOS R have in-body image stabilization?
EOS 5D Mark IV does not have IBIS, while EOS R has 6-stop in-body image stabilization.
Which shoots faster bursts — the EOS 5D Mark IV or the EOS R?
EOS 5D Mark IV reaches 7 fps electronic. EOS R reaches 8 fps electronic.
What's the weight difference between the EOS 5D Mark IV and EOS R?
EOS 5D Mark IV weighs 890 g and EOS R weighs 660 g, so the EOS R is 230 g lighter.
Do the EOS 5D Mark IV and EOS R record 4K video?
EOS 5D Mark IV: 4K up to 30p. EOS R: 4K up to 29.97p.
Are the EOS 5D Mark IV and EOS R weather sealed?
EOS 5D Mark IV: Yes. EOS R: Yes.
How much does each cost?
EOS 5D Mark IV launched at $3,499 and EOS R at $2,299. The EOS R is $1,200 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way EOS 5D Mark IV vs EOS R vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed July 2026.
Product images courtesy of Canon press materials.