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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
X4

Insta360

X4

8K 360 action camera with dual 1/2-inch sensors, 72MP photos, 4K60 single-lens mode, FlowState stabilization, and 10m waterproofing.

$499

Launch price

Released Apr 2024

EOS R6 Mark III is 1.6 years newer.

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Wins

10categories

EOS R6 Mark III

Sports & ActionPortrait

Wins

2categories

X4

Sports & ActionTravel

2 categories tied

Which would you choose?

TL;DR — Key differences

EOS R6 Mark III wins 3 categories·X4 wins 2 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)
  • BX4 has lower Weight (203 g vs 699 g)
  • BX4 has higher Resolution (72 MP vs 32.5 MP)

Key specs at a glance

EOS R6 Mark IIIX4
Resolution32.5 MP72 MP
SensorFull Frame1/2"
ISO max64,0006,400
Burst40 fps20 fps
4K120 fps60 fps
IBIS8.5-stopNo
Weight699 g203 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

X4 front view

X4

46 × 124 × 38 mm

203 g (0.45 lb / 7.16 oz)

EOS R6 Mark III is 25mm shorter than X4 but it is also 92mm wider and 51mm thicker.

EOS R6 Mark III is 496 g heavier than X4.

Depth (front-to-back): 88mm EOS R6 Mark III · 38mm X4

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

X4 back view

X4

46 × 124 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

X4 top view

X4

46 × 38 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

X4: 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 IIIX4
Portrait
8.0Excellent✓ wins
3.0Limited
Sports & Action
10.0Excellent✓ wins
7.0Good
Video & Hybrid
6.5Good
6.5Good
Landscape
7.5Good✓ wins
5.0Fair
Travel
7.5Good✓ wins
7.0Good
Wildlife
6.5Good✓ wins
5.5Fair
Vlogging
5.5Fair✓ wins
5.0Fair

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…

  • 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

  • Codecs

    Adds CRM, XF-HEVC S, XF-AVC S

  • AA filter

    Only EOS R6 Mark III supports it

Reasons to choose

X4

  • Stabilization modes

    Adds FlowState, 360° Horizon Lock, Active HDR

  • Dimensions (W×H×D mm)

    Adds 46, 123.6, 37.6

  • Card types

    Adds microSD

  • Weight

    203 g vs 699 g — lower is better

  • Resolution

    72 MP vs 32.5 MP — higher is better

Both cameras share

  • ISO min (native)Both 100
  • Pre-Capture / Pre-ReleaseBoth support pre-capture / pre-release
  • Weather sealingBoth support weather sealing
  • Battery life (CIPA)Both 640 shots
  • TouchscreenBoth support touchscreen
  • Wi-FiBoth support wi-fi

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

X4

Pros

  • 8K 360 video
  • 72MP 360 photos
  • 4K60 single-lens mode
  • 10m waterproof

Cons

  • 360 workflow needs reframing
  • 8K runtime ~75 min
  • Larger than Ace Pro

Decided which one is right for you?

Compare live prices for the EOS R6 Mark III and X4 at major authorized retailers.

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Full specifications

= category winner

EOS R6 Mark III
X4
Resolution
32.5 MP
72 MP2.2× more
Sensor type
Full Frame CMOS
Dual 1/2" CMOS (360°)
Sensor size
35.9 × 23.9 mm
1/2"
AA filter
Yes
EOS R6 Mark III
X4
Aperture
f/1.9
Focal length (35mm equiv.)
6.7 mm
EOS R6 Mark III
X4
Processor
DIGIC X
Image processor
EOS R6 Mark III
X4
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
X4
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 X4?

EOS R6 Mark III scores 8.0/10 versus 3.0/10 for X4 — 32.5MP — ample resolution for portraits.

What's the resolution difference between the EOS R6 Mark III and X4?

EOS R6 Mark III is 32.5 MP and X4 is 72 MP, so the X4 captures more detail for cropping and large prints.

Do the EOS R6 Mark III and X4 have in-body image stabilization?

EOS R6 Mark III has 8.5-stop in-body image stabilization, while X4 uses FlowState + 360° Horizon Lock (electronic).

Which shoots faster bursts — the EOS R6 Mark III or the X4?

EOS R6 Mark III reaches 40 fps electronic. X4 reaches 20 fps electronic.

What's the weight difference between the EOS R6 Mark III and X4?

EOS R6 Mark III weighs 699 g and X4 weighs 203 g, so the X4 is 496 g lighter.

Do the EOS R6 Mark III and X4 record 4K video?

EOS R6 Mark III: 4K up to 120p. X4: 8K (max), 4K up to 60p.

Are the EOS R6 Mark III and X4 weather sealed?

EOS R6 Mark III: Yes. X4: Yes.

Which has better battery life?

Rated battery life is 640 shots (CIPA) for the EOS R6 Mark III and 640 shots for the X4, giving the X4 the edge.

How much does each cost?

EOS R6 Mark III launched at $2,799 and X4 at $499. The X4 is $2,300 less.

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

Add any camera to get a three-way EOS R6 Mark III vs X4 vs X comparison.

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

Product images courtesy of Canon and Insta360 press materials.