Cameraegg Compare logoCameraegg

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 IVx

Ricoh

GR IVx

40mm-equivalent GR IV sibling with a newly designed 26.1mm f/2.8 lens, 25.74MP APS-C sensor, 5-axis SR, 4K video, 53GB internal storage, and pocket street-camera handling. Winter 2026 planned.

$1,499

Launch price

Released Dec 2026

GR IVx is 5.2 years newer.

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.

Wins

2categories

GR IIIx

PortraitVlogging

Wins

3categories

GR IVx

Portrait

6 categories tied

Which would you choose?

TL;DR — Key differences

GR IIIx wins 2 categories·GR IVx wins 3 categories
  • BGR IVx has higher ISO max (native) (204,800 vs 102,400)
  • AGR IIIx has higher 4K max frame rate (60 fps vs 30 fps)
  • BGR IVx has higher Battery life (CIPA) (250 shots vs 200 shots)
  • BGR IVx has higher Resolution (25.74 MP vs 24.24 MP)
  • AGR IIIx has lower Weight (262 g vs 265 g)

Key specs at a glance

GR IIIxGR IVx
Resolution24.24 MP25.74 MP
SensorAPS-CAPS-C
ISO max102,400204,800
Burst4 fps4 fps
4K60 fps30 fps
IBISYesYes
Weight262 g265 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 IVx front view

GR IVx

109 × 61 × 33 mm

265 g (0.58 lb / 9.35 oz)

GR IIIx is 1mm taller and 2mm thicker than GR IVx.

GR IIIx is 3 g lighter than GR IVx.

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

Sensor size, to scale

GR IIIx

23.5 × 15.6 mm · APS-C

367 mm² area

GR IVx

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 IVx
Portrait
6.5Good
6.5Good
Sports & Action
1.5Limited✓ wins
1.0Limited
Video & Hybrid
3.5Limited
4.0Fair✓ wins
Landscape
2.5Limited
2.5Limited
Travel
5.5Fair
5.5Fair
Wildlife
2.0Limited✓ wins
1.0Limited
Vlogging
6.5Good✓ wins
5.5Fair

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

  • 4K max frame rate

    60 fps vs 30 fps — higher is better

  • Weight

    262 g vs 265 g — lower is better

Reasons to choose

GR IVx

  • Card types

    Adds microSD, microSDHC, microSDXC UHS-I

  • Dimensions (W×H×D mm)

    Adds 61.1, 33.4

  • 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
  • 1080p 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 IVx

Pros

  • New 26.1mm f/2.8 GR lens (40mm equiv.)
  • GR IV 25.74MP APS-C + 5-axis SR
  • 4K 30p/24p and 53GB built-in storage
  • Snap focus, 50/71mm crops, 2-stop ND
  • Pocketable 265g body

Cons

  • Price not yet announced (listed at GR IV $1,499)
  • Winter 2026 or later — still in development as of Aug 2026
  • No built-in EVF
  • Fixed 40mm-equiv. lens

Decided which one is right for you?

Compare live prices for the GR IIIx and GR IVx 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

GR IIIx
GR IVx
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 IVx
Aperture
F2.8-F16
F2.8-F16
Focal length (35mm equiv.)
40 mm
40 mm
GR IIIx
GR IVx
Processor
GR ENGINE 6
GR ENGINE 7
GR IIIx
GR IVx
ISO min (native)
100
100
ISO max (native)
102,400
204,800+1 stop
ISO max (expanded)
102,400
204,800
GR IIIx
GR IVx
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 vlogging, GR IIIx or GR IVx?

GR IIIx scores 6.5/10 versus 5.5/10 for GR IVx — 262g — easy to handhold for selfie video.

What's the resolution difference between the GR IIIx and GR IVx?

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

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

GR IIIx has in-body image stabilization, while GR IVx has in-body image stabilization.

Which shoots faster bursts — the GR IIIx or the GR IVx?

GR IIIx reaches 4 fps electronic. GR IVx reaches 4 fps electronic.

What's the weight difference between the GR IIIx and GR IVx?

GR IIIx weighs 262 g and GR IVx weighs 265 g, so the GR IIIx is 3 g lighter.

Do the GR IIIx and GR IVx record 4K video?

GR IIIx: 4K up to 60p. GR IVx: 4K up to 30p.

Are the GR IIIx and GR IVx weather sealed?

GR IIIx: No. GR IVx: No.

Which has better battery life?

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

How much does each cost?

GR IIIx launched at $999 and GR IVx at $1,499. The GR IIIx is $500 less.

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

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

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

Product images courtesy of Ricoh press materials.