Canon
EOS 6D Mark II
Affordable full-frame DSLR entry with articulating touchscreen and Dual Pixel AF.
$1,999
Released Jun 2017
Canon
EOS R3
Pro 24MP full-frame stacked-sensor body built for sports, news, wildlife, and high-speed hybrid capture.
$5,999
Released Sep 2021
EOS R3 is 4.3 years newer.
Wins
EOS 6D Mark II
Wins
EOS R3
1 categories tied
Check current prices
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TL;DR — Key differences
- BEOS R3 has higher 4K max frame rate (120 fps vs 0 fps)
- BEOS R3 has higher IBIS effectiveness (8 stops vs 0 stops)
- 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 Burst (electronic) (30 fps vs 6.5 fps)
Key specs at a glance
Size and weight, to scale
EOS 6D Mark II
144 × 111 × 75 mm
765 g (1.69 lb / 26.98 oz)
EOS R3
150 × 143 × 87 mm
1015 g (2.24 lb / 35.80 oz)
EOS 6D Mark II is 6mm narrower, 32mm shorter, and 12mm thinner than EOS R3.
EOS 6D Mark II is 250 g lighter than EOS R3.
Depth (front-to-back): 75mm EOS 6D Mark II · 87mm EOS R3
Back view, to scale
Width × Height — same proportions as the front of the body.
EOS 6D Mark II
144 × 111 mm
EOS R3
150 × 143 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
EOS 6D Mark II
144 × 75 mm
EOS R3
150 × 87 mm
Sensor size, to scale
EOS 6D Mark II
35.9 × 24 mm · Full Frame
862 mm² area
EOS R3
36 × 24 mm · Full Frame
864 mm² area
Lens ecosystem
Native lens selection
EOS 6D Mark II
✓ 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 6D Mark II
Dimensions (W×H×D mm)
Adds 144, 110.5, 74.8
Card types
Adds SD UHS-I
Pre-Capture / Pre-Release
Only EOS 6D Mark II supports it
Battery life (CIPA)
1200 shots vs 620 shots — higher is better
Weight
765 g vs 1015 g — lower is better
Resolution
26.2 MP vs 24.1 MP — 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…
4K max frame rate
120 fps vs 0 fps — higher is better
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
AF points / zones
1053 vs 45 — higher is better
Max video bit rate
2600 Mbps vs 150 Mbps — higher is better
Both cameras share
- ✓AA filter — Both support aa filter
- ✓ISO min (native) — Both 100
- ✓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 6D Mark II
Pros
- ✓Affordable full-frame
- ✓Articulating screen
- ✓Good ergonomics
Cons
- –26MP dated
- –Single card slot
- –Dynamic range behind mirrorless
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
Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for video, EOS 6D Mark II or EOS R3?
EOS R3 scores 9.0/10 versus 2.0/10 for EOS 6D Mark II — 6K video for oversampled 4K.
What's the resolution difference between the EOS 6D Mark II and EOS R3?
EOS 6D Mark II is 26.2 MP and EOS R3 is 24.1 MP, so the EOS 6D Mark II captures more detail for cropping and large prints.
Do the EOS 6D Mark II and EOS R3 have in-body image stabilization?
EOS 6D Mark II does not have IBIS, while eOS R3 has 8-stop in-body image stabilization.
Which shoots faster bursts — the EOS 6D Mark II or the EOS R3?
EOS 6D Mark II reaches 6.5 fps electronic. EOS R3 reaches 30 fps electronic.
What's the weight difference between the EOS 6D Mark II and EOS R3?
EOS 6D Mark II weighs 765 g and EOS R3 weighs 1015 g, so the EOS 6D Mark II is 250 g lighter.
Do the EOS 6D Mark II and EOS R3 record 4K video?
EOS 6D Mark II: Full HD. EOS R3: 6K RAW (max), 4K up to 120p.
Are the EOS 6D Mark II and EOS R3 weather sealed?
EOS 6D Mark II: Yes. EOS R3: Yes.
Which has better battery life?
Rated battery life is 1,200 shots (CIPA) for the EOS 6D Mark II and 620 shots for the EOS R3, giving the EOS 6D Mark II the edge.
How much does each cost?
EOS 6D Mark II launched at $1,999 and EOS R3 at $5,999. The EOS 6D Mark II is $4,000 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of Canon press materials.