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Ricoh

GR III HDF

GR III variant with built-in Highlight Diffusion Filter for softer glow effects and the same 28mm APS-C pocket formula.

$1,066

Launch price

Released Apr 2024

vs
GR IV Monochrome

Ricoh

GR IV Monochrome

Monochrome-only GR IV with 25.74MP APS-C sensor, red filter mode, 5-axis SR, and classic 28mm pocket street-camera design.

$2,199

Launch price

Released Jan 2026

GR IV Monochrome is 1.8 years newer.

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Wins

2categories

GR III HDF

PortraitVlogging

Wins

3categories

GR IV Monochrome

PortraitVlogging

6 categories tied

Which would you choose?

TL;DR — Key differences

GR III HDF wins 2 categories·GR IV Monochrome wins 3 categories
  • BGR IV Monochrome has higher ISO max (native) (409,600 vs 102,400)
  • AGR III HDF has lower ISO min (native) (100 vs 160)
  • BGR IV Monochrome has higher Battery life (CIPA) (250 shots vs 200 shots)
  • BGR IV Monochrome has higher Resolution (25.74 MP vs 24.24 MP)
  • AGR III HDF has lower Weight (257 g vs 262 g)

Key specs at a glance

GR III HDFGR IV Monochrome
Resolution24.24 MP25.74 MP
SensorAPS-CAPS-C
ISO max102,400409,600
Burst4 fps4 fps
4K60 fps60 fps
IBISYesYes
Weight257 g262 g
Battery200 shots250 shots

Size and weight, to scale

GR III HDF

109 × 62 × 33 mm

257 g (0.57 lb / 9.07 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 Monochrome front view

GR IV Monochrome

109 × 61 × 33 mm

262 g (0.58 lb / 9.24 oz)

GR III HDF is 1mm taller and 1mm thicker than GR IV Monochrome.

GR III HDF is 5 g lighter than GR IV Monochrome.

Depth (front-to-back): 33mm GR III HDF · 33mm GR IV Monochrome

Back view, to scale

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

GR III HDF

109 × 62 mm

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

Credit card

85.6 × 54 mm

GR IV Monochrome back view

GR IV Monochrome

109 × 61 mm

Top view, to scale

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

GR III HDF

109 × 33 mm

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

Credit card

85.6 × 54 mm

GR IV Monochrome top view

GR IV Monochrome

109 × 33 mm

Sensor size, to scale

GR III HDF

23.5 × 15.6 mm · APS-C

367 mm² area

GR IV Monochrome

23.3 × 15.5 mm · APS-C

361 mm² area

Use-case scoring

Which one for what?

Algorithmic scores from verified specs · 10 = best in class

Use caseGR III HDFGR IV Monochrome
Portrait
6.5Good
6.5Good
Sports & Action
1.5Limited
1.5Limited
Video & Hybrid
3.5Limited
3.5Limited
Landscape
2.5Limited
2.5Limited
Travel
5.5Fair
5.5Fair
Wildlife
2.0Limited✓ wins
1.0Limited
Vlogging
6.5Good
6.5Good

Why pick one over the other

Reasons to choose

GR III HDF

  • Card types

    Adds SD, SDHC, SDXC UHS-I

  • Dimensions (W×H×D mm)

    Adds 61.9, 33.2

  • ISO min (native)

    100 vs 160 — lower is better

  • Weight

    257 g vs 262 g — lower is better

Reasons to choose

GR IV Monochrome

  • Card types

    Adds microSD, microSDHC, microSDXC UHS-I

  • ISO max (native)

    409,600 vs 102,400 — higher is better

  • Dimensions (W×H×D mm)

    Adds 61.1, 32.7

  • Battery life (CIPA)

    250 shots vs 200 shots — higher is better

  • Resolution

    25.74 MP vs 24.24 MP — higher is better

Both cameras share

  • AF points / zonesBoth 49
  • Eye AFBoth support eye af
  • Burst (mechanical)Both 4 fps
  • Burst (electronic)Both 4 fps
  • 4K max frame rateBoth 60 fps
  • 1080p max frame rateBoth 60 fps

Pros & cons at a glance

Editorially curated highlights and trade-offs.

GR III HDF

Pros

  • Built-in HDF effect
  • Pocketable APS-C
  • 28mm equivalent GR lens
  • 3-axis SR

Cons

  • No ND filter
  • Fixed lens
  • Full HD video only

GR IV Monochrome

Pros

  • Monochrome APS-C sensor
  • ISO 160-409600
  • 5-axis SR
  • Red filter mode

Cons

  • Black-and-white only
  • Fixed lens
  • Full HD video only

Decided which one is right for you?

Compare live prices for the GR III HDF and GR IV Monochrome at major authorized retailers.

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Full specifications

= category winner

GR III HDF
GR IV Monochrome
Resolution
24.24 MP
25.74 MP+6%
Sensor type
APS-C CMOS
APS-C Monochrome CMOS
Sensor size
23.5 x 15.6 mm
23.3 x 15.5 mm
AA filter
No
No
GR III HDF
GR IV Monochrome
Aperture
F2.8-F16
F2.8-F16
Focal length (35mm equiv.)
28 mm
28 mm
GR III HDF
GR IV Monochrome
Processor
GR ENGINE 6
GR ENGINE 7
GR III HDF
GR IV Monochrome
ISO min (native)
100−60 less
160
ISO max (native)
102,400
409,600+2 stops
ISO max (expanded)
102,400
409,600
GR III HDF
GR IV Monochrome
Shutter type
Leaf shutter
Leaf shutter
Max mechanical speed
1/4000 sec
1/4000 sec
Max electronic speed
1/16000 sec
1/16000 sec

Frequently asked

Quick answers generated from verified specs.

Which is better for portraits, GR III HDF or GR IV Monochrome?

GR III HDF scores 6.5/10 versus 6.5/10 for GR IV Monochrome — 24.24MP — solid resolution.

What's the resolution difference between the GR III HDF and GR IV Monochrome?

GR III HDF is 24.24 MP and GR IV Monochrome is 25.74 MP, so the GR IV Monochrome captures more detail for cropping and large prints.

Do the GR III HDF and GR IV Monochrome have in-body image stabilization?

GR III HDF has in-body image stabilization, while GR IV Monochrome has in-body image stabilization.

Which shoots faster bursts — the GR III HDF or the GR IV Monochrome?

GR III HDF reaches 4 fps electronic. GR IV Monochrome reaches 4 fps electronic.

What's the weight difference between the GR III HDF and GR IV Monochrome?

GR III HDF weighs 257 g and GR IV Monochrome weighs 262 g, so the GR III HDF is 5 g lighter.

Do the GR III HDF and GR IV Monochrome record 4K video?

GR III HDF: 4K up to 60p. GR IV Monochrome: 4K up to 60p.

Are the GR III HDF and GR IV Monochrome weather sealed?

GR III HDF: No. GR IV Monochrome: No.

Which has better battery life?

Rated battery life is 200 shots (CIPA) for the GR III HDF and 250 shots for the GR IV Monochrome, giving the GR IV Monochrome the edge.

How much does each cost?

GR III HDF launched at $1,066 and GR IV Monochrome at $2,199. The GR III HDF is $1,133 less.

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

Add any camera to get a three-way GR III HDF vs GR IV Monochrome vs X comparison.

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

Product images courtesy of Ricoh press materials.