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Canon

EOS 77D

Mid-tier APS-C DSLR with top LCD, Dual Pixel AF, and the same 24MP sensor as the 80D.

$899

Launch price

Released Feb 2017

vs
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

EOS R6 Mark III is 8.8 years newer.

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Wins

2categories

EOS 77D

Sports & ActionTravel

Wins

9categories

EOS R6 Mark III

Sports & ActionPortrait

7 categories tied

Which would you choose?

TL;DR — Key differences

EOS 77D wins 0 categories·EOS R6 Mark III wins 5 categories
  • BEOS R6 Mark III has higher Max video bit rate (2600 Mbps vs 150 Mbps)
  • BEOS R6 Mark III has higher Burst (electronic) (40 fps vs 15 fps)
  • BEOS R6 Mark III has higher ISO max (native) (64,000 vs 25,600)
  • BEOS R6 Mark III has higher RAW buffer depth (150 frames vs 60 frames)
  • BEOS R6 Mark III has higher Burst (mechanical) (12 fps vs 6 fps)

Key specs at a glance

EOS 77DEOS R6 Mark III
Resolution24.2 MP32.5 MP
Sensor22.3 × 14.9 mmFull Frame
ISO max25,60064,000
Burst15 fps40 fps
4K60 fps120 fps
IBIS6-stop8.5-stop
Weight540 g699 g
Battery640 shots640 shots

Size and weight, to scale

EOS 77D

131 × 100 × 76 mm

540 g (1.19 lb / 19.05 oz)

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

Credit card

85.6 × 54 mm

for scale

EOS R6 Mark III front view

EOS R6 Mark III

138 × 98 × 88 mm

699 g (1.54 lb / 24.66 oz)

EOS 77D is 7mm narrower and 12mm thinner than EOS R6 Mark III but it is also 1mm taller.

EOS 77D is 159 g lighter than EOS R6 Mark III.

Depth (front-to-back): 76mm EOS 77D · 88mm EOS R6 Mark III

Back view, to scale

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

EOS 77D

131 × 100 mm

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

Credit card

85.6 × 54 mm

EOS R6 Mark III back view

EOS R6 Mark III

138 × 98 mm

Top view, to scale

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

EOS 77D

131 × 76 mm

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

Credit card

85.6 × 54 mm

EOS R6 Mark III top view

EOS R6 Mark III

138 × 88 mm

Sensor size, to scale

EOS 77D

22.3 × 14.9 mm · APS-C

332 mm² area

EOS R6 Mark III

35.9 × 23.9 mm · Full Frame

858 mm² area

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

Lens ecosystem

Native lens selection

EOS 77D

✓ more lenses

Canon EF

300+

native lenses available

100 first-party200 third-party

EOS R6 Mark III

Canon RF

105+

native lenses available

45 first-party60 third-party

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 77DEOS R6 Mark III
Portrait
5.0Fair
8.0Excellent✓ wins
Sports & Action
7.5Good
10.0Excellent✓ wins
Video & Hybrid
6.0Good
6.5Good✓ wins
Landscape
3.5Limited
7.5Good✓ wins
Travel
7.0Good
7.5Good✓ wins
Wildlife
6.5Good
6.5Good
Vlogging
7.0Good✓ wins
5.5Fair

Why pick one over the other

Reasons to choose

EOS 77D

  • Subject recognition

    Adds Human, Animal, Bird…

  • Dimensions (W×H×D mm)

    Adds 131, 99.8, 76.2

  • Weight

    540 g vs 699 g — lower is better

  • EVF magnification

    0.78 × vs 0.76 × — higher is better

Reasons to choose

EOS R6 Mark III

  • 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

  • Burst (mechanical)

    12 fps vs 6 fps — higher is better

Both cameras share

  • AA filterBoth support aa filter
  • ISO min (native)Both 100
  • AF points / zonesBoth 1053
  • AF frame coverageBoth 100 %
  • Eye AFBoth support eye af
  • Animal / bird AFBoth support animal / bird af

Pros & cons at a glance

Editorially curated highlights and trade-offs.

EOS 77D

Pros

  • Top LCD
  • Dual Pixel AF
  • 24MP APS-C
  • Lightweight DSLR

Cons

  • No weather sealing
  • No IBIS
  • DSLR declining

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

Decided which one is right for you?

Compare live prices for the EOS 77D and EOS R6 Mark III at major authorized retailers.

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Full specifications

= category winner

EOS 77D
EOS R6 Mark III
Resolution
24.2 MP
32.5 MP+34%
Sensor type
APS-C CMOS
Full Frame CMOS
Sensor size
22.3 × 14.9 mm
35.9 × 23.9 mm
AA filter
Yes
Yes
EOS 77D
EOS R6 Mark III
Processor
DIGIC X
DIGIC X
EOS 77D
EOS R6 Mark III
ISO min (native)
100
100
ISO max (native)
25,600
64,000+1.3 stops
ISO max (expanded)
102,400
102,400
EOS 77D
EOS R6 Mark III
Shutter type
Mechanical + Electronic
Mechanical / Electronic 1st Curtain + 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 landscape, EOS 77D or EOS R6 Mark III?

EOS R6 Mark III scores 7.5/10 versus 3.5/10 for EOS 77D — 32.5MP — ample resolution.

What's the resolution difference between the EOS 77D and EOS R6 Mark III?

EOS 77D is 24.2 MP and EOS R6 Mark III is 32.5 MP, so the EOS R6 Mark III captures more detail for cropping and large prints.

Do the EOS 77D and EOS R6 Mark III have in-body image stabilization?

EOS 77D has 6-stop in-body image stabilization, while EOS R6 Mark III has 8.5-stop in-body image stabilization.

Which shoots faster bursts — the EOS 77D or the EOS R6 Mark III?

EOS 77D reaches 15 fps electronic. EOS R6 Mark III reaches 40 fps electronic.

What's the weight difference between the EOS 77D and EOS R6 Mark III?

EOS 77D weighs 540 g and EOS R6 Mark III weighs 699 g, so the EOS 77D is 159 g lighter.

Do the EOS 77D and EOS R6 Mark III record 4K video?

EOS 77D: 4K up to 60p. EOS R6 Mark III: 4K up to 120p.

Are the EOS 77D and EOS R6 Mark III weather sealed?

EOS 77D: No. EOS R6 Mark III: Yes.

Which has better battery life?

Rated battery life is 640 shots (CIPA) for the EOS 77D and 640 shots for the EOS R6 Mark III, giving the EOS R6 Mark III the edge.

How much does each cost?

EOS 77D launched at $899 and EOS R6 Mark III at $2,799. The EOS 77D is $1,900 less.

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

Add any camera to get a three-way EOS 77D vs EOS R6 Mark III vs X comparison.

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

Product images courtesy of Canon press materials.