Canon
EOS R1
Flagship 24.2MP full-frame BSI stacked RF body with 40fps burst, Dual Pixel Intelligent AF, 6K RAW, and 9.44M-dot EVF.
$6,299
Launch priceReleased Jul 2024
Leica
Q3
Full-frame fixed 28mm f/1.7 premium compact for documentary and travel.
$5,995
Launch priceReleased May 2023
EOS R1 is 1.2 years newer.
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Wins
EOS R1
Wins
Q3
TL;DR — Key differences
- AEOS R1 has higher Battery life (CIPA) (1330 shots vs 350 shots)
- AEOS R1 has higher Burst (mechanical) (12 fps vs 4 fps)
- AEOS R1 has higher Burst (electronic) (40 fps vs 15 fps)
- BQ3 has higher Resolution (60.3 MP vs 24.2 MP)
- BQ3 has lower ISO min (native) (50 vs 100)
Key specs at a glance
Size and weight, to scale
EOS R1
158 × 150 × 87 mm
920 g (2.03 lb / 32.45 oz)
Credit card
85.6 × 54 mm
for scale
Q3
130 × 80 × 92 mm
743 g (1.64 lb / 26.21 oz)
EOS R1 is 5mm thinner than Q3 but it is also 28mm wider and 70mm taller.
EOS R1 is 177 g heavier than Q3.
Depth (front-to-back): 87mm EOS R1 · 92mm Q3
Back view, to scale
Width × Height — same proportions as the front of the body.
EOS R1
158 × 150 mm
Credit card
85.6 × 54 mm
Q3
130 × 80 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
EOS R1
158 × 87 mm
Credit card
85.6 × 54 mm
Q3
130 × 92 mm
Sensor size, to scale
EOS R1
36 × 24 mm · Full Frame
864 mm² area
Q3
36 × 24 mm · Full Frame
864 mm² area
Lens ecosystem
Native lens selection
EOS R1
✓ more lensesCanon RF
105+
native lenses available
Q3: mount data unavailable
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 R1
Subject recognition
Adds People, Dogs, Cats…
Dimensions (W×H×D mm)
Adds 157.6, 149.5, 87.3
Card types
Adds CFexpress Type B, CFexpress Type B
Battery life (CIPA)
1330 shots vs 350 shots — higher is better
Burst (mechanical)
12 fps vs 4 fps — higher is better
Burst (electronic)
40 fps vs 15 fps — higher is better
Codecs
Adds RAW, XF-HEVC S, XF-AVC S
AA filter
Only EOS R1 supports it
Reasons to choose
Q3
Subject recognition
Adds Human, Face, Eye…
Dimensions (W×H×D mm)
Adds 130, 80, 92
Card types
Adds SD UHS-II
Resolution
60.3 MP vs 24.2 MP — higher is better
ISO min (native)
50 vs 100 — lower is better
Codecs
Adds ProRes
Weight
743 g vs 920 g — lower is better
Both cameras share
- ✓Eye AF — Both support eye af
- ✓Animal / bird AF — Both support animal / bird af
- ✓Weather sealing — Both support weather sealing
- ✓Touchscreen — Both support touchscreen
- ✓Wi-Fi — Both support wi-fi
- ✓Bluetooth — Both support bluetooth
Pros & cons at a glance
Editorially curated highlights and trade-offs.
EOS R1
Pros
- ✓40fps electronic burst
- ✓24.2MP BSI stacked full-frame sensor
- ✓Dual Pixel Intelligent AF
- ✓6K RAW and 4K 120p video
- ✓Dual CFexpress Type B slots
Cons
- –24MP resolution
- –Very expensive
- –Large integrated-grip body
Q3
Pros
- ✓60MP full-frame
- ✓Summilux 28mm lens
- ✓Built like a tank
- ✓Unique aesthetic
Cons
- –Fixed lens
- –Very expensive
- –No interchangeable system
Decided which one is right for you?
Compare live prices for the EOS R1 and Q3 at major authorized retailers.
Canon EOS R1
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for sports, EOS R1 or Q3?
EOS R1 scores 8.5/10 versus 4.5/10 for Q3 — 40fps burst — pro-level action capture.
What's the resolution difference between the EOS R1 and Q3?
EOS R1 is 24.2 MP and Q3 is 60.3 MP, so the Q3 captures more detail for cropping and large prints.
Do the EOS R1 and Q3 have in-body image stabilization?
EOS R1 has 8.5-stop in-body image stabilization, while q3 does not have IBIS.
Which shoots faster bursts — the EOS R1 or the Q3?
EOS R1 reaches 40 fps electronic. Q3 reaches 15 fps electronic.
What's the weight difference between the EOS R1 and Q3?
EOS R1 weighs 920 g and Q3 weighs 743 g, so the Q3 is 177 g lighter.
Do the EOS R1 and Q3 record 4K video?
EOS R1: 6K RAW (max), 4K up to 120p. Q3: 8K (max), 4K up to 60p.
Are the EOS R1 and Q3 weather sealed?
EOS R1: Yes. Q3: Yes.
Which has better battery life?
Rated battery life is 1,330 shots (CIPA) for the EOS R1 and 350 shots for the Q3, giving the EOS R1 the edge.
How much does each cost?
EOS R1 launched at $6,299 and Q3 at $5,995. The Q3 is $304 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed June 2026.
Product images courtesy of Canon and Leica press materials.