Canon
EOS 90D
High-res APS-C DSLR with 32.5MP, 10fps, and excellent Dual Pixel AF for wildlife.
$1,199
Launch priceReleased Aug 2019
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 2.1 years newer.
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Wins
EOS 90D
Wins
EOS R3
4 categories tied
Which would you choose?
TL;DR — Key differences
- BEOS R3 has higher AF points / zones (1053 vs 45)
- BEOS R3 has higher Max video bit rate (2600 Mbps vs 150 Mbps)
- BEOS R3 has higher ISO max (native) (102,400 vs 25,600)
- BEOS R3 has higher 4K max frame rate (120 fps vs 30 fps)
- BEOS R3 has higher Burst (electronic) (30 fps vs 10 fps)
Key specs at a glance
Size and weight, to scale
📸 Snap this size diff to shareEOS 90D
138 × 98 × 88 mm
520 g (1.15 lb / 18.34 oz)
Credit card
85.6 × 54 mm
for scale
EOS R3
150 × 143 × 87 mm
1015 g (2.24 lb / 35.80 oz)
EOS 90D is 12mm narrower and 45mm shorter than EOS R3 but it is also 1mm thicker.
EOS 90D is 495 g lighter than EOS R3.
Depth (front-to-back): 88mm EOS 90D · 87mm EOS R3
Sensor size, to scale
EOS 90D
22.3 × 14.8 mm · APS-C
330 mm² area
EOS R3
36 × 24 mm · Full Frame
864 mm² area
2.6× larger sensor area = shallower depth of field and better low-light performance.
Lens ecosystem
Native lens selection
EOS 90D
✓ more lensesCanon EF
300+
native lenses available
EOS R3
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 90D
Subject recognition
Adds Human, Animal, Bird…
Dimensions (W×H×D mm)
Adds 138, 98, 88
Pre-Capture / Pre-Release
Only EOS 90D supports it
Weight
520 g vs 1015 g — lower is better
Resolution
32.5 MP vs 24.1 MP — higher is better
Battery life (CIPA)
640 shots vs 620 shots — higher is better
EVF magnification
0.78 × vs 0.76 × — higher is better
Reasons to choose
EOS R3
AF low-light limit
-7.5 EV vs -3 EV — lower is better
Subject recognition
Adds People, Dogs, Cats…
Dimensions (W×H×D mm)
Adds 150, 142.6, 87.2
AF points / zones
1053 vs 45 — higher is better
Max video bit rate
2600 Mbps vs 150 Mbps — higher is better
ISO max (native)
102,400 vs 25,600 — higher is better
4K max frame rate
120 fps vs 30 fps — higher is better
Burst (electronic)
30 fps vs 10 fps — higher is better
Both cameras share
- ✓AA filter — Both support aa filter
- ✓ISO min (native) — Both 100
- ✓AF frame coverage — Both 100 %
- ✓Eye AF — Both support eye af
- ✓In-body stabilization (IBIS) — Both support in-body stabilization (ibis)
- ✓Weather sealing — Both support weather sealing
Pros & cons at a glance
Editorially curated highlights and trade-offs.
EOS 90D
Pros
- ✓32.5MP APS-C
- ✓10fps burst
- ✓Optical viewfinder
- ✓Long battery life
Cons
- –DSLR declining
- –No IBIS
- –Crop sensor
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 90D and EOS R3 at major authorized retailers.
Canon EOS 90D
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 90D or EOS R3?
EOS R3 scores 9.0/10 versus 5.0/10 for EOS 90D — 6K video for oversampled 4K.
What's the resolution difference between the EOS 90D and EOS R3?
EOS 90D is 32.5 MP and EOS R3 is 24.1 MP, so the EOS 90D captures more detail for cropping and large prints.
Do the EOS 90D and EOS R3 have in-body image stabilization?
EOS 90D has 6-stop in-body image stabilization, while EOS R3 has 8-stop in-body image stabilization.
Which shoots faster bursts — the EOS 90D or the EOS R3?
EOS 90D reaches 10 fps electronic. EOS R3 reaches 30 fps electronic.
What's the weight difference between the EOS 90D and EOS R3?
EOS 90D weighs 520 g and EOS R3 weighs 1015 g, so the EOS 90D is 495 g lighter.
Do the EOS 90D and EOS R3 record 4K video?
EOS 90D: 4K up to 30p. EOS R3: 6K RAW (max), 4K up to 120p.
Are the EOS 90D and EOS R3 weather sealed?
EOS 90D: Yes. EOS R3: Yes.
Which has better battery life?
Rated battery life is 640 shots (CIPA) for the EOS 90D and 620 shots for the EOS R3, giving the EOS 90D the edge.
How much does each cost?
EOS 90D launched at $1,199 and EOS R3 at $5,999. The EOS 90D is $4,800 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way EOS 90D vs EOS R3 vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed July 2026.