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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

Sony

RX10 IV

1-inch bridge with 24–600mm f/2.4–4 zoom, 24fps AF tracking, and pro video features.

$1,699

Launch price

Released Sep 2017

EOS R6 Mark III is 8.2 years newer.

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Wins

12categories

EOS R6 Mark III

Sports & ActionPortrait

Wins

0categories

RX10 IV

Sports & ActionWildlife

3 categories tied

Which would you choose?

TL;DR — Key differences

EOS R6 Mark III wins 5 categories·RX10 IV wins 0 categories
  • AEOS R6 Mark III has higher Max video bit rate (2600 Mbps vs 150 Mbps)
  • AEOS R6 Mark III has higher Burst (electronic) (40 fps vs 15 fps)
  • AEOS R6 Mark III has higher ISO max (native) (64,000 vs 25,600)
  • AEOS R6 Mark III has higher RAW buffer depth (150 frames vs 60 frames)
  • AEOS R6 Mark III has higher Burst (mechanical) (12 fps vs 6 fps)

Key specs at a glance

EOS R6 Mark IIIRX10 IV
Resolution32.5 MP20.1 MP
SensorFull Frame13.2 × 8.8 mm
ISO max64,00025,600
Burst40 fps15 fps
4K120 fps60 fps
IBIS8.5-stop6-stop
Weight699 g1095 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

RX10 IV

133 × 94 × 131 mm

1095 g (2.41 lb / 38.63 oz)

EOS R6 Mark III is 43mm thinner than RX10 IV but it is also 5mm wider and 4mm taller.

EOS R6 Mark III is 396 g lighter than RX10 IV.

Depth (front-to-back): 88mm EOS R6 Mark III · 131mm RX10 IV

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

RX10 IV

133 × 94 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

RX10 IV

133 × 131 mm

Sensor size, to scale

EOS R6 Mark III

35.9 × 23.9 mm · Full Frame

858 mm² area

RX10 IV

13.2 × 8.8 mm · 1-inch

116 mm² area

7.4× larger sensor area = shallower depth of field and better low-light performance.

Lens ecosystem

Native lens selection

EOS R6 Mark III

✓ more lenses

Canon RF

105+

native lenses available

45 first-party60 third-party

RX10 IV: 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 IIIRX10 IV
Portrait
8.0Excellent✓ wins
4.0Fair
Sports & Action
10.0Excellent✓ wins
8.0Excellent
Video & Hybrid
6.5Good✓ wins
6.0Good
Landscape
7.5Good✓ wins
3.5Limited
Travel
7.5Good✓ wins
5.5Fair
Wildlife
6.5Good
8.0Excellent✓ wins
Vlogging
5.5Fair
5.5Fair

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

  • Burst (electronic)

    40 fps vs 15 fps — higher is better

  • ISO max (native)

    64,000 vs 25,600 — higher is better

  • RAW buffer depth

    150 frames vs 60 frames — higher is better

  • Codecs

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

Reasons to choose

RX10 IV

  • Subject recognition

    Adds Human, Animal, Bird…

  • Dimensions (W×H×D mm)

    Adds 133.1, 94.1, 131.2

Both cameras share

  • AA filterBoth support aa filter
  • ISO min (native)Both 100
  • Eye AFBoth support eye af
  • Animal / bird AFBoth support animal / bird af
  • Pre-Capture / Pre-ReleaseBoth support pre-capture / pre-release
  • In-body stabilization (IBIS)Both support in-body stabilization (ibis)

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

RX10 IV

Pros

  • 24–600mm reach
  • 24fps with AF
  • Weather sealed
  • Strong all-in-one travel camera

Cons

  • 1-inch sensor
  • Large bridge body
  • Expensive for sensor size

Decided which one is right for you?

Compare live prices for the EOS R6 Mark III and RX10 IV 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
RX10 IV
Resolution
32.5 MP+62%
20.1 MP
Sensor type
Full Frame CMOS
1-inch CMOS
Sensor size
35.9 × 23.9 mm
13.2 × 8.8 mm
AA filter
Yes
Yes
EOS R6 Mark III
RX10 IV
Processor
DIGIC X
BIONZ XR
EOS R6 Mark III
RX10 IV
ISO min (native)
100
100
ISO max (native)
64,000+1.3 stops
25,600
ISO max (expanded)
102,400
102,400
EOS R6 Mark III
RX10 IV
Shutter type
Mechanical / Electronic 1st Curtain + Electronic
Mechanical + Electronic
Max mechanical speed
1/8000 sec
1/8000 sec
Max electronic speed
1/16000 sec
1/16000 sec

Frequently asked

Quick answers generated from verified specs.

Which is better for portraits, EOS R6 Mark III or RX10 IV?

EOS R6 Mark III scores 8.0/10 versus 4.0/10 for RX10 IV — 32.5MP — ample resolution for portraits.

What's the resolution difference between the EOS R6 Mark III and RX10 IV?

EOS R6 Mark III is 32.5 MP and RX10 IV is 20.1 MP, so the EOS R6 Mark III captures more detail for cropping and large prints.

Do the EOS R6 Mark III and RX10 IV have in-body image stabilization?

EOS R6 Mark III has 8.5-stop in-body image stabilization, while RX10 IV has 6-stop in-body image stabilization.

Which shoots faster bursts — the EOS R6 Mark III or the RX10 IV?

EOS R6 Mark III reaches 40 fps electronic. RX10 IV reaches 15 fps electronic.

What's the weight difference between the EOS R6 Mark III and RX10 IV?

EOS R6 Mark III weighs 699 g and RX10 IV weighs 1095 g, so the EOS R6 Mark III is 396 g lighter.

Do the EOS R6 Mark III and RX10 IV record 4K video?

EOS R6 Mark III: 4K up to 120p. RX10 IV: 4K up to 60p.

Are the EOS R6 Mark III and RX10 IV weather sealed?

EOS R6 Mark III: Yes. RX10 IV: Yes.

Which has better battery life?

Rated battery life is 640 shots (CIPA) for the EOS R6 Mark III and 640 shots for the RX10 IV, giving the RX10 IV the edge.

How much does each cost?

EOS R6 Mark III launched at $2,799 and RX10 IV at $1,699. The RX10 IV is $1,100 less.

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

Add any camera to get a three-way EOS R6 Mark III vs RX10 IV 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.