Canon
EOS R6 Mark II
Versatile 24.2MP full-frame hybrid with class-leading AF and 4K 60p video.
$2,499
Released Nov 2022
Ricoh
GR IIIx
GR III with a tighter 40mm equivalent GR lens for a natural street, travel, and documentary perspective.
$999
Released Sep 2021
EOS R6 Mark II is 1.2 years newer.
Wins
EOS R6 Mark II
Wins
GR IIIx
3 categories tied
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TL;DR — Key differences
- AEOS R6 Mark II has higher AF points / zones (1053 vs 49)
- AEOS R6 Mark II has higher Burst (electronic) (40 fps vs 4 fps)
- AEOS R6 Mark II has higher Battery life (CIPA) (760 shots vs 200 shots)
- AEOS R6 Mark II has higher Burst (mechanical) (12 fps vs 4 fps)
- BGR IIIx has lower Weight (262 g vs 680 g)
Key specs at a glance
Size and weight, to scale
EOS R6 Mark II
138 × 98 × 88 mm
680 g (1.50 lb / 23.99 oz)
GR IIIx
109 × 62 × 35 mm
262 g (0.58 lb / 9.24 oz)
EOS R6 Mark II is 29mm wider, 37mm taller, and 53mm thicker than GR IIIx.
EOS R6 Mark II is 418 g heavier than GR IIIx.
Depth (front-to-back): 88mm EOS R6 Mark II · 35mm GR IIIx
Back view, to scale
Width × Height — same proportions as the front of the body.
EOS R6 Mark II
138 × 98 mm
GR IIIx
109 × 62 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
EOS R6 Mark II
138 × 88 mm
GR IIIx
109 × 35 mm
Sensor size, to scale
EOS R6 Mark II
35.9 × 23.9 mm · Full Frame
858 mm² area
GR IIIx
23.5 × 15.6 mm · APS-C
367 mm² area
2.3× larger sensor area = shallower depth of field and better low-light performance.
Lens ecosystem
Native lens selection
EOS R6 Mark II
✓ more lensesCanon RF
105+
native lenses available
GR IIIx: 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 II
Subject recognition
Adds People, Dogs, Cats…
Codecs
Adds H.265, H.264
Dimensions (W×H×D mm)
Adds 138.4, 98.4, 88.4
Card types
Adds SD UHS-II, SD UHS-II
AF points / zones
1053 vs 49 — higher is better
Burst (electronic)
40 fps vs 4 fps — higher is better
Battery life (CIPA)
760 shots vs 200 shots — higher is better
Burst (mechanical)
12 fps vs 4 fps — higher is better
Reasons to choose
GR IIIx
Subject recognition
Adds Face, Eye
Codecs
Adds MPEG-4 AVC/H.264, MOV
Dimensions (W×H×D mm)
Adds 109.4, 61.9, 35.2
Card types
Adds SD, SDHC, SDXC UHS-I
Weight
262 g vs 680 g — lower is better
Resolution
24.24 MP vs 24.2 MP — higher is better
Both cameras share
- ✓ISO min (native) — Both 100
- ✓ISO max (native) — Both 102,400
- ✓Eye AF — Both support eye af
- ✓4K max frame rate — Both 60 fps
- ✓In-body stabilization — Both support in-body stabilization
- ✓Touchscreen — Both support touchscreen
Pros & cons at a glance
Editorially curated highlights and trade-offs.
EOS R6 Mark II
Pros
- ✓Up to 40fps electronic burst
- ✓4K 60p oversampled from 6K
- ✓Dual Pixel CMOS AF II — superb subject tracking
- ✓8-stop IBIS
- ✓Fully articulating touchscreen
Cons
- –24.2MP may feel limiting for large prints
- –No CFexpress on base body
- –Short battery life vs. A7 IV
GR IIIx
Pros
- ✓40mm equivalent GR lens
- ✓Pocketable APS-C
- ✓3-axis SR
- ✓Snap focus street shooting
Cons
- –Fixed lens
- –No built-in EVF
- –Full HD video only
Decided which one is right for you?
Compare live prices for the EOS R6 Mark II and GR IIIx at major authorized retailers.
Canon EOS R6 Mark II
Ricoh GR IIIx
Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for sports, EOS R6 Mark II or GR IIIx?
EOS R6 Mark II scores 8.5/10 versus 0.5/10 for GR IIIx — 40fps burst — pro-level action capture.
What's the resolution difference between the EOS R6 Mark II and GR IIIx?
EOS R6 Mark II is 24.2 MP and GR IIIx is 24.24 MP, so the GR IIIx captures more detail for cropping and large prints.
Do the EOS R6 Mark II and GR IIIx have in-body image stabilization?
EOS R6 Mark II has 8-stop in-body image stabilization, while gR IIIx has in-body image stabilization.
Which shoots faster bursts — the EOS R6 Mark II or the GR IIIx?
EOS R6 Mark II reaches 40 fps electronic. GR IIIx reaches 4 fps electronic.
What's the weight difference between the EOS R6 Mark II and GR IIIx?
EOS R6 Mark II weighs 680 g and GR IIIx weighs 262 g, so the GR IIIx is 418 g lighter.
Do the EOS R6 Mark II and GR IIIx record 4K video?
EOS R6 Mark II: 4K up to 60p. GR IIIx: 4K up to 60p.
Are the EOS R6 Mark II and GR IIIx weather sealed?
EOS R6 Mark II: Yes. GR IIIx: No.
Which has better battery life?
Rated battery life is 760 shots (CIPA) for the EOS R6 Mark II and 200 shots for the GR IIIx, giving the EOS R6 Mark II the edge.
How much does each cost?
EOS R6 Mark II launched at $2,499 and GR IIIx at $999. The GR IIIx is $1,500 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of Canon and Ricoh press materials.