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Ricoh

GR IIIx

GR III with a tighter 40mm equivalent GR lens for a natural street, travel, and documentary perspective.

$999

Launch price

Released Sep 2021

vs
GR IV HDF

Ricoh

GR IV HDF

GR IV variant with built-in Highlight Diffusion Filter for softer rendering and the same 25.74MP APS-C pocket platform.

$1,599

Launch price

Released Jan 2026

GR IV HDF is 4.3 years newer.

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Wins

0categories

GR IIIx

PortraitVlogging

Wins

3categories

GR IV HDF

PortraitVlogging

7 categories tied

Which would you choose?

TL;DR — Key differences

GR IIIx wins 0 categories·GR IV HDF wins 3 categories
  • BGR IV HDF has higher ISO max (native) (204,800 vs 102,400)
  • BGR IV HDF has higher Battery life (CIPA) (250 shots vs 200 shots)
  • BGR IV HDF has higher Resolution (25.74 MP vs 24.24 MP)

Key specs at a glance

GR IIIxGR IV HDF
Resolution24.24 MP25.74 MP
SensorAPS-CAPS-C
ISO max102,400204,800
Burst4 fps4 fps
4K60 fps60 fps
IBISYesYes
Weight262 g262 g
Battery200 shots250 shots

Size and weight, to scale

GR IIIx

109 × 62 × 35 mm

262 g (0.58 lb / 9.24 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 HDF front view

GR IV HDF

109 × 61 × 33 mm

262 g (0.58 lb / 9.24 oz)

GR IIIx is 1mm taller and 3mm thicker than GR IV HDF.

GR IIIx and GR IV HDF weigh the same.

Depth (front-to-back): 35mm GR IIIx · 33mm GR IV HDF

Back view, to scale

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

GR IIIx

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 HDF back view

GR IV HDF

109 × 61 mm

Top view, to scale

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

GR IIIx

109 × 35 mm

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

Credit card

85.6 × 54 mm

GR IV HDF top view

GR IV HDF

109 × 33 mm

Sensor size, to scale

GR IIIx

23.5 × 15.6 mm · APS-C

367 mm² area

GR IV HDF

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 IIIxGR IV HDF
Portrait
6.5Good
6.5Good
Sports & Action
1.5Limited✓ wins
1.0Limited
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 IIIx

  • Card types

    Adds SD, SDHC, SDXC UHS-I

  • Dimensions (W×H×D mm)

    Adds 61.9, 35.2

Reasons to choose

GR IV HDF

  • Card types

    Adds microSD, microSDHC, microSDXC UHS-I

  • Dimensions (W×H×D mm)

    Adds 61.1, 32.7

  • ISO max (native)

    204,800 vs 102,400 — higher is better

  • 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

  • ISO min (native)Both 100
  • 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

Pros & cons at a glance

Editorially curated highlights and trade-offs.

GR IIIx

Pros

  • 40mm equivalent GR lens
  • Pocketable APS-C
  • 3-axis SR
  • Snap focus street shooting

Cons

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

GR IV HDF

Pros

  • Built-in HDF effect
  • 25.74MP APS-C sensor
  • 5-axis SR
  • 53GB internal memory

Cons

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

Decided which one is right for you?

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

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Full specifications

= category winner

GR IIIx
GR IV HDF
Resolution
24.24 MP
25.74 MP+6%
Sensor type
APS-C CMOS
APS-C CMOS
Sensor size
23.5 x 15.6 mm
23.3 x 15.5 mm
AA filter
No
No
GR IIIx
GR IV HDF
Aperture
F2.8-F16
Focal length (35mm equiv.)
40 mm
GR IIIx
GR IV HDF
Processor
GR ENGINE 6
GR ENGINE 7
GR IIIx
GR IV HDF
ISO min (native)
100
100
ISO max (native)
102,400
204,800+1 stop
ISO max (expanded)
102,400
204,800
GR IIIx
GR IV HDF
Shutter type
Leaf shutter
Leaf shutter
Max mechanical speed
1/4000 sec
1/4000 sec
Max electronic speed
1/16000 sec

Frequently asked

Quick answers generated from verified specs.

Which is better for portraits, GR IIIx or GR IV HDF?

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

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

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

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

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

Which shoots faster bursts — the GR IIIx or the GR IV HDF?

GR IIIx reaches 4 fps electronic. GR IV HDF reaches 4 fps electronic.

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

Both bodies weigh roughly 262 g.

Do the GR IIIx and GR IV HDF record 4K video?

GR IIIx: 4K up to 60p. GR IV HDF: 4K up to 60p.

Are the GR IIIx and GR IV HDF weather sealed?

GR IIIx: No. GR IV HDF: No.

Which has better battery life?

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

How much does each cost?

GR IIIx launched at $999 and GR IV HDF at $1,599. The GR IIIx is $600 less.

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

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

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

Product images courtesy of Ricoh press materials.