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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
GR IV

Ricoh

GR IV

Latest GR with 25.74MP APS-C sensor, 28mm equivalent lens, 5-axis SR, 53GB internal memory, and pocket street-camera handling.

$1,499

Launch price

Released Jan 2026

GR IV is 8.9 years newer.

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Wins

5categories

EOS 77D

Sports & ActionTravel

Wins

3categories

GR IV

PortraitVlogging

2 categories tied

Which would you choose?

TL;DR — Key differences

EOS 77D wins 3 categories·GR IV wins 2 categories
  • AEOS 77D has higher AF points / zones (1053 vs 49)
  • BGR IV has higher ISO max (native) (204,800 vs 25,600)
  • AEOS 77D has higher Burst (electronic) (15 fps vs 4 fps)
  • AEOS 77D has higher Battery life (CIPA) (640 shots vs 250 shots)
  • BGR IV has lower Weight (262 g vs 540 g)

Key specs at a glance

EOS 77DGR IV
Resolution24.2 MP25.74 MP
Sensor22.3 × 14.9 mmAPS-C
ISO max25,600204,800
Burst15 fps4 fps
4K60 fps60 fps
IBIS6-stopYes
Weight540 g262 g
Battery640 shots250 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

GR IV front view

GR IV

109 × 61 × 33 mm

262 g (0.58 lb / 9.24 oz)

EOS 77D is 22mm wider, 39mm taller, and 44mm thicker than GR IV.

EOS 77D is 278 g heavier than GR IV.

Depth (front-to-back): 76mm EOS 77D · 33mm GR IV

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

GR IV back view

GR IV

109 × 61 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

GR IV top view

GR IV

109 × 33 mm

Sensor size, to scale

EOS 77D

22.3 × 14.9 mm · APS-C

332 mm² area

GR IV

23.3 × 15.5 mm · APS-C

361 mm² area

1.1× 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

GR 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 77DGR IV
Portrait
5.0Fair
6.5Good✓ wins
Sports & Action
7.5Good✓ wins
1.5Limited
Video & Hybrid
6.0Good✓ wins
3.5Limited
Landscape
3.5Limited✓ wins
2.5Limited
Travel
7.0Good✓ wins
5.5Fair
Wildlife
6.5Good✓ wins
1.0Limited
Vlogging
7.0Good✓ wins
6.5Good

Why pick one over the other

Reasons to choose

EOS 77D

  • Subject recognition

    Adds Human, Animal, Bird…

  • Codecs

    Adds H.265, H.264

  • Dimensions (W×H×D mm)

    Adds 131, 99.8, 76.2

  • Card types

    Adds SD UHS-II

  • AF points / zones

    1053 vs 49 — higher is better

  • Burst (electronic)

    15 fps vs 4 fps — higher is better

  • Battery life (CIPA)

    640 shots vs 250 shots — higher is better

  • AA filter

    Only EOS 77D supports it

Reasons to choose

GR IV

  • Subject recognition

    Adds Face, Eye

  • Codecs

    Adds MPEG-4 AVC/H.264, MOV

  • Dimensions (W×H×D mm)

    Adds 109.4, 61.1, 32.7

  • Card types

    Adds microSD, microSDHC, microSDXC UHS-I

  • ISO max (native)

    204,800 vs 25,600 — higher is better

  • Weight

    262 g vs 540 g — lower is better

  • Resolution

    25.74 MP vs 24.2 MP — higher is better

Both cameras share

  • ISO min (native)Both 100
  • Eye AFBoth support eye af
  • 4K max frame rateBoth 60 fps
  • In-body stabilization (IBIS)Both support in-body stabilization (ibis)
  • TouchscreenBoth support touchscreen
  • Wi-FiBoth support wi-fi

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

GR IV

Pros

  • 25.74MP APS-C sensor
  • 5-axis sensor-shift SR
  • 53GB internal memory
  • Pocketable 28mm GR lens

Cons

  • Fixed lens
  • No built-in EVF
  • Full HD video only

Decided which one is right for you?

Compare live prices for the EOS 77D and GR IV at major authorized retailers.

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Full specifications

= category winner

EOS 77D
GR IV
Resolution
24.2 MP
25.74 MP+6%
Sensor type
APS-C CMOS
APS-C CMOS
Sensor size
22.3 × 14.9 mm
23.3 x 15.5 mm
AA filter
Yes
No
EOS 77D
GR IV
Aperture
F2.8-F16
Focal length (35mm equiv.)
28 mm
EOS 77D
GR IV
Processor
DIGIC X
GR ENGINE 7
EOS 77D
GR IV
ISO min (native)
100
100
ISO max (native)
25,600
204,800+3 stops
ISO max (expanded)
102,400
204,800
EOS 77D
GR IV
Shutter type
Mechanical + Electronic
Leaf shutter
Max mechanical speed
1/8000 sec
1/4000 sec
Max electronic speed
1/16000 sec

Frequently asked

Quick answers generated from verified specs.

Which is better for sports, EOS 77D or GR IV?

EOS 77D scores 7.5/10 versus 1.5/10 for GR IV — 15fps burst — fast action ready.

What's the resolution difference between the EOS 77D and GR IV?

EOS 77D is 24.2 MP and GR IV is 25.74 MP, so the GR IV captures more detail for cropping and large prints.

Do the EOS 77D and GR IV have in-body image stabilization?

EOS 77D has 6-stop in-body image stabilization, while GR IV has in-body image stabilization.

Which shoots faster bursts — the EOS 77D or the GR IV?

EOS 77D reaches 15 fps electronic. GR IV reaches 4 fps electronic.

What's the weight difference between the EOS 77D and GR IV?

EOS 77D weighs 540 g and GR IV weighs 262 g, so the GR IV is 278 g lighter.

Do the EOS 77D and GR IV record 4K video?

EOS 77D: 4K up to 60p. GR IV: 4K up to 60p.

Are the EOS 77D and GR IV weather sealed?

EOS 77D: No. GR IV: No.

Which has better battery life?

Rated battery life is 640 shots (CIPA) for the EOS 77D and 250 shots for the GR IV, giving the EOS 77D the edge.

How much does each cost?

EOS 77D launched at $899 and GR IV at $1,499. The EOS 77D is $600 less.

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

Add any camera to get a three-way EOS 77D vs GR IV vs X comparison.

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

Product images courtesy of Canon and Ricoh press materials.