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
Released Apr 2024
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.
$1,699
Released Jan 2026
GR IV Monochrome is 1.8 years newer.
Wins
GR III HDF
Wins
GR IV Monochrome
5 categories tied
TL;DR — Key differences
- 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
Size and weight, to scale
GR III HDF
109 × 62 × 33 mm
257 g (0.57 lb / 9.07 oz)
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
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
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 / zones — Both 49
- ✓Eye AF — Both support eye af
- ✓Burst (mechanical) — Both 4 fps
- ✓Burst (electronic) — Both 4 fps
- ✓4K max frame rate — Both 60 fps
- ✓In-body stabilization — Both support in-body stabilization
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
Full specifications
✓ = category winner
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 $1,699. The GR III HDF is $633 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.