Canon
EOS R
Canon’s first full-frame RF mirrorless — launched the RF mount ecosystem.
$2,299
Launch priceReleased Sep 2018
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
EOS R3 is 3 years newer.
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Wins
EOS R
Wins
EOS R3
2 categories tied
Which would you choose?
TL;DR — Key differences
- BEOS R3 has higher Max video bit rate (2600 Mbps vs 150 Mbps)
- AEOS R has higher AF points / zones (5655 vs 1053)
- BEOS R3 has higher 4K max frame rate (120 fps vs 29.97 fps)
- BEOS R3 has higher Burst (electronic) (30 fps vs 8 fps)
- BEOS R3 has higher RAW buffer depth (150 frames vs 47 frames)
Key specs at a glance
Size and weight, to scale
📸 Snap this size diff to share
EOS R
136 × 98 × 84 mm
660 g (1.46 lb / 23.28 oz)
Credit card
85.6 × 54 mm
for scale
EOS R3
150 × 143 × 87 mm
1015 g (2.24 lb / 35.80 oz)
EOS R is 14mm narrower, 44mm shorter, and 3mm thinner than EOS R3.
EOS R is 355 g lighter than EOS R3.
Depth (front-to-back): 84mm EOS R · 87mm EOS R3
Back view, to scale
Width × Height — same proportions as the front of the body.
EOS R
136 × 98 mm
Credit card
85.6 × 54 mm
EOS R3
150 × 143 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
EOS R
136 × 84 mm
Credit card
85.6 × 54 mm
EOS R3
150 × 87 mm
Sensor size, to scale
EOS R
36 × 24 mm · Full Frame
864 mm² area
EOS R3
36 × 24 mm · Full Frame
864 mm² area
Lens ecosystem
Native lens selection
EOS R
✓ more lensesCanon RF
105+
native lenses available
EOS R3
✓ 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 R
Subject recognition
Adds Human, Animal, Bird…
Dimensions (W×H×D mm)
Adds 135.8, 98.3, 84.4
Card types
Adds SD, SDHC, SDXC
AF points / zones
5655 vs 1053 — higher is better
Pre-Capture / Pre-Release
Only EOS R supports it
Codecs
Adds MP4
Weight
660 g vs 1015 g — lower is better
Resolution
30.3 MP vs 24.1 MP — higher is better
Reasons to choose
EOS R3
AF low-light limit
-7.5 EV vs -6 EV — lower is better
Subject recognition
Adds People, Dogs, Cats…
Dimensions (W×H×D mm)
Adds 150, 142.6, 87.2
Card types
Adds CFexpress Type B, SD UHS-II
Max video bit rate
2600 Mbps vs 150 Mbps — higher is better
4K max frame rate
120 fps vs 29.97 fps — higher is better
Burst (electronic)
30 fps vs 8 fps — higher is better
RAW buffer depth
150 frames vs 47 frames — higher is better
Both cameras share
- ✓AA filter — Both support aa filter
- ✓ISO min (native) — Both 100
- ✓Eye AF — Both support eye af
- ✓In-body stabilization (IBIS) — Both support in-body stabilization (ibis)
- ✓Weather sealing — Both support weather sealing
- ✓EVF refresh rate — Both 120 Hz
Pros & cons at a glance
Editorially curated highlights and trade-offs.
EOS R
Pros
- ✓First Canon RF body
- ✓Dual Pixel AF
- ✓Fully articulating screen
Cons
- –No IBIS
- –Single card slot
- –Superseded by R6/R8
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
Decided which one is right for you?
Compare live prices for the EOS R and EOS R3 at major authorized retailers.
Canon EOS R
Canon EOS R3
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for video, EOS R or EOS R3?
EOS R3 scores 9.0/10 versus 3.0/10 for EOS R — 6K video for oversampled 4K.
What's the resolution difference between the EOS R and EOS R3?
EOS R is 30.3 MP and EOS R3 is 24.1 MP, so the EOS R captures more detail for cropping and large prints.
Do the EOS R and EOS R3 have in-body image stabilization?
EOS R has 6-stop in-body image stabilization, while EOS R3 has 8-stop in-body image stabilization.
Which shoots faster bursts — the EOS R or the EOS R3?
EOS R reaches 8 fps electronic. EOS R3 reaches 30 fps electronic.
What's the weight difference between the EOS R and EOS R3?
EOS R weighs 660 g and EOS R3 weighs 1015 g, so the EOS R is 355 g lighter.
Do the EOS R and EOS R3 record 4K video?
EOS R: 4K up to 29.97p. EOS R3: 6K RAW (max), 4K up to 120p.
Are the EOS R and EOS R3 weather sealed?
EOS R: Yes. EOS R3: Yes.
How much does each cost?
EOS R launched at $2,299 and EOS R3 at $5,999. The EOS R is $3,700 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way EOS R vs EOS R3 vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed July 2026.
Product images courtesy of Canon press materials.