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
Canon
EOS R8
Lightest Canon full-frame mirrorless — R6 II AF in a compact, affordable body.
$1,499
Launch priceReleased Apr 2023
EOS R8 is 1.6 years newer.
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Wins
EOS R3
Wins
EOS R8
3 categories tied
Which would you choose?
TL;DR — Key differences
- AEOS R3 has higher IBIS effectiveness (8 stops vs 0 stops)
- AEOS R3 has higher Max video bit rate (2600 Mbps vs 340 Mbps)
- BEOS R8 has higher AF points / zones (4897 vs 1053)
- AEOS R3 has higher Battery life (CIPA) (620 shots vs 150 shots)
- AEOS R3 has higher RAW buffer depth (150 frames vs 56 frames)
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
EOS R8
133 × 86 × 70 mm
461 g (1.02 lb / 16.26 oz)
EOS R3 is 17mm wider, 56mm taller, and 17mm thicker than EOS R8.
EOS R3 is 554 g heavier than EOS R8.
Depth (front-to-back): 87mm EOS R3 · 70mm EOS R8
Back view, to scale
Width × Height — same proportions as the front of the body.
EOS R3
150 × 143 mm
Credit card
85.6 × 54 mm
EOS R8
133 × 86 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
EOS R3
150 × 87 mm
Credit card
85.6 × 54 mm
EOS R8
133 × 70 mm
Sensor size, to scale
EOS R3
36 × 24 mm · Full Frame
864 mm² area
EOS R8
35.9 × 23.9 mm · Full Frame
858 mm² area
Lens ecosystem
Native lens selection
EOS R3
✓ more lensesCanon RF
105+
native lenses available
EOS R8
✓ 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 R3
AF low-light limit
-7.5 EV vs -6.5 EV — lower is better
Subject recognition
Adds People, Dogs, Cats…
IBIS effectiveness
8 stops vs 0 stops — higher is better
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 340 Mbps — higher is better
Battery life (CIPA)
620 shots vs 150 shots — higher is better
RAW buffer depth
150 frames vs 56 frames — higher is better
Reasons to choose
EOS R8
Subject recognition
Adds Human, Animal, Bird…
Dimensions (W×H×D mm)
Adds 132.59, 86.11, 70.1
Card types
Adds SD, SDHC, SDXC
AF points / zones
4897 vs 1053 — higher is better
Weight
461 g vs 1015 g — lower is better
Pre-Capture / Pre-Release
Only EOS R8 supports it
Codecs
Adds MP4
Burst (electronic)
40 fps vs 30 fps — higher is better
Both cameras share
- ✓AA filter — Both support aa filter
- ✓ISO min (native) — Both 100
- ✓ISO max (native) — Both 102,400
- ✓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 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
EOS R8
Pros
- ✓461g — ultralight full-frame body
- ✓Dual Pixel CMOS AF II (same as R6 II)
- ✓4K 60p oversampled — excellent quality
- ✓Accessible $1,499 price
Cons
- –No in-body stabilization
- –Single SD card slot
- –LP-E17 battery — only 290 CIPA shots
- –USB-C 2.0 — no USB video out
Decided which one is right for you?
Compare live prices for the EOS R3 and EOS R8 at major authorized retailers.
Canon EOS R3
Canon EOS R8
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for video, EOS R3 or EOS R8?
EOS R3 scores 9.0/10 versus 2.5/10 for EOS R8 — 6K video for oversampled 4K.
What's the resolution difference between the EOS R3 and EOS R8?
EOS R3 is 24.1 MP and EOS R8 is 24.2 MP, so the EOS R8 captures more detail for cropping and large prints.
Do the EOS R3 and EOS R8 have in-body image stabilization?
EOS R3 has 8-stop in-body image stabilization, while EOS R8 does not have IBIS.
Which shoots faster bursts — the EOS R3 or the EOS R8?
EOS R3 reaches 30 fps electronic. EOS R8 reaches 40 fps electronic.
What's the weight difference between the EOS R3 and EOS R8?
EOS R3 weighs 1015 g and EOS R8 weighs 461 g, so the EOS R8 is 554 g lighter.
Do the EOS R3 and EOS R8 record 4K video?
EOS R3: 6K RAW (max), 4K up to 120p. EOS R8: 4K up to 59.94p.
Are the EOS R3 and EOS R8 weather sealed?
EOS R3: Yes. EOS R8: Yes.
Which has better battery life?
Rated battery life is 620 shots (CIPA) for the EOS R3 and 150 shots for the EOS R8, giving the EOS R3 the edge.
How much does each cost?
EOS R3 launched at $5,999 and EOS R8 at $1,499. The EOS R8 is $4,500 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way EOS R3 vs EOS R8 vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed July 2026.
Product images courtesy of Canon press materials.