Canon
EOS R6 Mark III
Hybrid 32.5MP full-frame RF body with 7K RAW video, 40fps electronic burst, 8.5-stop IBIS, and Dual Pixel CMOS AF II.
$2,799
Launch priceReleased Nov 2025
Sony
RX1R II
Full-frame 42MP compact with fixed 35mm f/2 Zeiss lens — still unmatched for discreet high-res street work.
$3,299
Launch priceReleased Oct 2015
EOS R6 Mark III is 10.1 years newer.
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Wins
EOS R6 Mark III
Wins
RX1R II
3 categories tied
Which would you choose?
TL;DR — Key differences
- AEOS R6 Mark III has higher Max video bit rate (2600 Mbps vs 150 Mbps)
- AEOS R6 Mark III has higher ISO max (native) (64,000 vs 25,600)
- AEOS R6 Mark III has higher Burst (electronic) (40 fps vs 20 fps)
- AEOS R6 Mark III has higher 4K max frame rate (120 fps vs 60 fps)
- AEOS R6 Mark III has higher Burst (mechanical) (12 fps vs 8 fps)
Key specs at a glance
Size and weight, to scale
📸 Snap this size diff to share
EOS R6 Mark III
138 × 98 × 88 mm
699 g (1.54 lb / 24.66 oz)
Credit card
85.6 × 54 mm
for scale
RX1R II
113 × 65 × 72 mm
507 g (1.12 lb / 17.88 oz)
EOS R6 Mark III is 25mm wider, 33mm taller, and 16mm thicker than RX1R II.
EOS R6 Mark III is 192 g heavier than RX1R II.
Depth (front-to-back): 88mm EOS R6 Mark III · 72mm RX1R II
Back view, to scale
Width × Height — same proportions as the front of the body.
EOS R6 Mark III
138 × 98 mm
Credit card
85.6 × 54 mm
RX1R II
113 × 65 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
EOS R6 Mark III
138 × 88 mm
Credit card
85.6 × 54 mm
RX1R II
113 × 72 mm
Sensor size, to scale
EOS R6 Mark III
35.9 × 23.9 mm · Full Frame
858 mm² area
RX1R II
35.9 × 24 mm · Full Frame
862 mm² area
Lens ecosystem
Native lens selection
EOS R6 Mark III
✓ more lensesCanon RF
105+
native lenses available
RX1R II: 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 R6 Mark III
AF low-light limit
-6.5 EV vs -4 EV — lower is better
Subject recognition
Adds People, Dogs, Cats…
Dimensions (W×H×D mm)
Adds 138.4, 98.4, 88.4
Max video bit rate
2600 Mbps vs 150 Mbps — higher is better
ISO max (native)
64,000 vs 25,600 — higher is better
Codecs
Adds CRM, XF-HEVC S, XF-AVC S
AA filter
Only EOS R6 Mark III supports it
Burst (electronic)
40 fps vs 20 fps — higher is better
Reasons to choose
RX1R II
Subject recognition
Adds Human, Animal, Bird…
Dimensions (W×H×D mm)
Adds 113.3, 65.4, 72
Weight
507 g vs 699 g — lower is better
Resolution
42.4 MP vs 32.5 MP — higher is better
Both cameras share
- ✓ISO min (native) — Both 100
- ✓Eye AF — Both support eye af
- ✓Animal / bird AF — Both support animal / bird af
- ✓Pre-Capture / Pre-Release — Both support pre-capture / pre-release
- ✓In-body stabilization (IBIS) — Both support in-body stabilization (ibis)
- ✓Battery life (CIPA) — Both 640 shots
Pros & cons at a glance
Editorially curated highlights and trade-offs.
EOS R6 Mark III
Pros
- ✓32.5MP full-frame sensor
- ✓7K RAW video & 4K 120p
- ✓40fps electronic burst with Pre-Continuous
- ✓8.5-stop IBIS
Cons
- –Single CFexpress Type B + SD slot
- –Smaller LCD than R5 II
- –LP-E6P required for full features
RX1R II
Pros
- ✓42MP full-frame in pocket class
- ✓Zeiss 35mm f/2 lens
- ✓Pop-up EVF
- ✓No AA filter
Cons
- –Fixed lens
- –Slow AF by modern standards
- –Premium price when new
Decided which one is right for you?
Compare live prices for the EOS R6 Mark III and RX1R II at major authorized retailers.
Canon EOS R6 Mark III
Sony RX1R II
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for sports, EOS R6 Mark III or RX1R II?
EOS R6 Mark III scores 10.0/10 versus 7.0/10 for RX1R II — 40fps burst — pro-level action capture.
What's the resolution difference between the EOS R6 Mark III and RX1R II?
EOS R6 Mark III is 32.5 MP and RX1R II is 42.4 MP, so the RX1R II captures more detail for cropping and large prints.
Do the EOS R6 Mark III and RX1R II have in-body image stabilization?
EOS R6 Mark III has 8.5-stop in-body image stabilization, while RX1R II has 7-stop in-body image stabilization.
Which shoots faster bursts — the EOS R6 Mark III or the RX1R II?
EOS R6 Mark III reaches 40 fps electronic. RX1R II reaches 20 fps electronic.
What's the weight difference between the EOS R6 Mark III and RX1R II?
EOS R6 Mark III weighs 699 g and RX1R II weighs 507 g, so the RX1R II is 192 g lighter.
Do the EOS R6 Mark III and RX1R II record 4K video?
EOS R6 Mark III: 4K up to 120p. RX1R II: 4K up to 60p.
Are the EOS R6 Mark III and RX1R II weather sealed?
EOS R6 Mark III: Yes. RX1R II: No.
Which has better battery life?
Rated battery life is 640 shots (CIPA) for the EOS R6 Mark III and 640 shots for the RX1R II, giving the RX1R II the edge.
How much does each cost?
EOS R6 Mark III launched at $2,799 and RX1R II at $3,299. The EOS R6 Mark III is $500 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way EOS R6 Mark III vs RX1R II vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed June 2026.
Product images courtesy of Canon and Sony press materials.