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EOS R6 Mark III

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 price

Released Nov 2025

vs
HERO12 Black

GoPro

HERO12 Black

1/1.9-inch action camera with HDR 5.3K60, 4K120, 2.7K240 slow-mo, HyperSmooth 6.0, and 10m waterproof body.

$349

Launch price

Released Sep 2023

EOS R6 Mark III is 2.2 years newer.

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Wins

9categories

EOS R6 Mark III

Sports & ActionPortrait

Wins

2categories

HERO12 Black

Sports & ActionTravel

3 categories tied

Which would you choose?

TL;DR — Key differences

EOS R6 Mark III wins 4 categories·HERO12 Black wins 1 categories
  • AEOS R6 Mark III has higher AF points / zones (1053 vs 0)
  • AEOS R6 Mark III has higher Max video bit rate (2600 Mbps vs 200 Mbps)
  • AEOS R6 Mark III has higher ISO max (native) (64,000 vs 6,400)
  • BHERO12 Black has lower Weight (154 g vs 699 g)
  • AEOS R6 Mark III has higher Burst (electronic) (40 fps vs 15 fps)

Key specs at a glance

EOS R6 Mark IIIHERO12 Black
Resolution32.5 MP27.6 MP
SensorFull Frame1/1.9"-Type
ISO max64,0006,400
Burst40 fps15 fps
4K120 fps120 fps
IBIS8.5-stopNo
Weight699 g154 g
Battery640 shots640 shots

Size and weight, to scale

EOS R6 Mark III front view

EOS R6 Mark III

138 × 98 × 88 mm

699 g (1.54 lb / 24.66 oz)

Credit card shown to scale as a size reference (ISO 7810, 85.6 × 54 mm)

Credit card

85.6 × 54 mm

for scale

HERO12 Black front view

HERO12 Black

72 × 34 × 51 mm

154 g (0.34 lb / 5.43 oz)

EOS R6 Mark III is 67mm wider, 65mm taller, and 38mm thicker than HERO12 Black.

EOS R6 Mark III is 545 g heavier than HERO12 Black.

Depth (front-to-back): 88mm EOS R6 Mark III · 51mm HERO12 Black

Back view, to scale

Width × Height — same proportions as the front of the body.

EOS R6 Mark III back view

EOS R6 Mark III

138 × 98 mm

Credit card shown to scale as a size reference (ISO 7810, 85.6 × 54 mm)

Credit card

85.6 × 54 mm

HERO12 Black back view

HERO12 Black

72 × 34 mm

Top view, to scale

Width × Depth (front-to-back) — see which body is chunkier on the table.

EOS R6 Mark III top view

EOS R6 Mark III

138 × 88 mm

Credit card shown to scale as a size reference (ISO 7810, 85.6 × 54 mm)

Credit card

85.6 × 54 mm

HERO12 Black

72 × 51 mm

Sensor size, to scale

EOS R6 Mark III

35.9 × 23.9 mm · Full Frame

858 mm² area

Lens ecosystem

Native lens selection

EOS R6 Mark III

✓ more lenses

Canon RF

105+

native lenses available

45 first-party60 third-party

HERO12 Black: 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

Use caseEOS R6 Mark IIIHERO12 Black
Portrait
8.0Excellent✓ wins
2.0Limited
Sports & Action
10.0Excellent
10.0Excellent
Video & Hybrid
6.5Good✓ wins
3.0Limited
Landscape
7.5Good✓ wins
3.0Limited
Travel
7.5Good
8.0Excellent✓ wins
Wildlife
6.5Good✓ wins
4.5Fair
Vlogging
5.5Fair✓ wins
4.0Fair

Why pick one over the other

Reasons to choose

EOS R6 Mark III

  • AF points / zones

    1053 vs 0 — higher is better

  • Subject recognition

    Adds People, Dogs, Cats…

  • Codecs

    Adds CRM, XF-HEVC S, XF-AVC S…

  • Dimensions (W×H×D mm)

    Adds 138.4, 98.4, 88.4

  • Card types

    Adds CFexpress Type B, SD UHS-II

  • Max video bit rate

    2600 Mbps vs 200 Mbps — higher is better

  • ISO max (native)

    64,000 vs 6,400 — higher is better

  • Burst (electronic)

    40 fps vs 15 fps — higher is better

Reasons to choose

HERO12 Black

  • Codecs

    Adds H.265/HEVC

  • Stabilization modes

    Adds HyperSmooth 6.0, 360° Horizon Lock, AutoBoost

  • Dimensions (W×H×D mm)

    Adds 71.8, 33.6, 50.8

  • Card types

    Adds microSD, microSDHC, microSDXC

  • Weight

    154 g vs 699 g — lower is better

  • 1080p max frame rate

    240 fps vs 180 fps — higher is better

Both cameras share

  • ISO min (native)Both 100
  • Pre-Capture / Pre-ReleaseBoth support pre-capture / pre-release
  • 4K max frame rateBoth 120 fps
  • Weather sealingBoth support weather sealing
  • Battery life (CIPA)Both 640 shots
  • TouchscreenBoth support touchscreen

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

HERO12 Black

Pros

  • HDR 5.3K and 4K120
  • HyperSmooth 6.0
  • 10m waterproof
  • Strong used value

Cons

  • Superseded by HERO13
  • Fixed lens
  • Smaller battery than HERO13

Decided which one is right for you?

Compare live prices for the EOS R6 Mark III and HERO12 Black at major authorized retailers.

Affiliate disclosure: As an Amazon Associate, Cameraegg earns from qualifying purchases. Cameraegg may also earn commission from B&H links, at no extra cost to you.

Full specifications

= category winner

EOS R6 Mark III
HERO12 Black
Resolution
32.5 MP+18%
27.6 MP
Sensor type
Full Frame CMOS
CMOS
Sensor size
35.9 × 23.9 mm
1/1.9"-Type
AA filter
Yes
No
EOS R6 Mark III
HERO12 Black
Aperture
2.5
Focal length (35mm equiv.)
12 to 39mm
Field of view
156 °
EOS R6 Mark III
HERO12 Black
Processor
DIGIC X
Image processor
EOS R6 Mark III
HERO12 Black
ISO min (native)
100
100
ISO max (native)
64,000+3.3 stops
6,400
ISO max (expanded)
102,400
6,400
EOS R6 Mark III
HERO12 Black
Shutter type
Mechanical / Electronic 1st Curtain + Electronic
Electronic shutter
Max mechanical speed
1/8000 sec
1/8000 sec
Max electronic speed
1/16000 sec
1/8000 sec

Frequently asked

Quick answers generated from verified specs.

Which is better for portraits, EOS R6 Mark III or HERO12 Black?

EOS R6 Mark III scores 8.0/10 versus 2.0/10 for HERO12 Black — 32.5MP — ample resolution for portraits.

What's the resolution difference between the EOS R6 Mark III and HERO12 Black?

EOS R6 Mark III is 32.5 MP and HERO12 Black is 27.6 MP, so the EOS R6 Mark III captures more detail for cropping and large prints.

Do the EOS R6 Mark III and HERO12 Black have in-body image stabilization?

EOS R6 Mark III has 8.5-stop in-body image stabilization, while HERO12 Black does not have IBIS.

Which shoots faster bursts — the EOS R6 Mark III or the HERO12 Black?

EOS R6 Mark III reaches 40 fps electronic. HERO12 Black reaches 15 fps electronic.

What's the weight difference between the EOS R6 Mark III and HERO12 Black?

EOS R6 Mark III weighs 699 g and HERO12 Black weighs 154 g, so the HERO12 Black is 545 g lighter.

Do the EOS R6 Mark III and HERO12 Black record 4K video?

EOS R6 Mark III: 4K up to 120p. HERO12 Black: 4K up to 120p.

Are the EOS R6 Mark III and HERO12 Black weather sealed?

EOS R6 Mark III: Yes. HERO12 Black: Yes.

Which has better battery life?

Rated battery life is 640 shots (CIPA) for the EOS R6 Mark III and 640 shots for the HERO12 Black, giving the HERO12 Black the edge.

How much does each cost?

EOS R6 Mark III launched at $2,799 and HERO12 Black at $349. The HERO12 Black is $2,450 less.

Can't decide between two? Compare a third camera.

Add any camera to get a three-way EOS R6 Mark III vs HERO12 Black vs X comparison.

Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed July 2026.

Product images courtesy of Canon and GoPro press materials.