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 priceReleased Jan 2026
Ricoh
WG-90
Rugged waterproof compact with 16MP sensor, 5x 28-140mm equivalent zoom, microscope mode, and ring light.
$329
Launch priceReleased Nov 2023
GR IV Monochrome is 2.2 years newer.
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Wins
GR IV Monochrome
Wins
WG-90
1 categories tied
Which would you choose?
TL;DR — Key differences
- AGR IV Monochrome has higher ISO max (native) (409,600 vs 6,400)
- AGR IV Monochrome has higher AF points / zones (49 vs 9)
- AGR IV Monochrome has higher 1080p max frame rate (60 fps vs 30 fps)
- AGR IV Monochrome has higher Resolution (25.74 MP vs 16 MP)
- BWG-90 has lower Weight (194 g vs 262 g)
Key specs at a glance
Size and weight, to scale
📸 Snap this size diff to share
GR IV Monochrome
109 × 61 × 33 mm
262 g (0.58 lb / 9.24 oz)
Credit card
85.6 × 54 mm
for scale
WG-90
123 × 62 × 30 mm
194 g (0.43 lb / 6.84 oz)
GR IV Monochrome is 13mm narrower than WG-90 but it is also 3mm thicker.
GR IV Monochrome is 68 g heavier than WG-90.
Depth (front-to-back): 33mm GR IV Monochrome · 30mm WG-90
Back view, to scale
Width × Height — same proportions as the front of the body.
GR IV Monochrome
109 × 61 mm
Credit card
85.6 × 54 mm
WG-90
123 × 62 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
GR IV Monochrome
109 × 33 mm
Credit card
85.6 × 54 mm
WG-90
123 × 30 mm
Sensor size, to scale
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 IV Monochrome
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)
409,600 vs 6,400 — higher is better
AF points / zones
49 vs 9 — higher is better
Eye AF
Only GR IV Monochrome supports it
Subject recognition
Adds Eye
1080p max frame rate
60 fps vs 30 fps — higher is better
Reasons to choose
WG-90
Codecs
Adds H.264
Dimensions (W×H×D mm)
Adds 122.5, 61.5, 29.5
Card types
Adds SD, SDHC, SDXC
Subject recognition
Adds Pet
Weather sealing
Only WG-90 supports it
Weight
194 g vs 262 g — lower is better
ISO min (native)
125 vs 160 — lower is better
Battery life (CIPA)
300 shots vs 250 shots — higher is better
Both cameras share
- ✓Card slots — Both 1
Pros & cons at a glance
Editorially curated highlights and trade-offs.
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
WG-90
Pros
- ✓Waterproof and shockproof
- ✓5x optical zoom
- ✓Microscope mode
- ✓Compact rugged body
Cons
- –Small sensor
- –Full HD only
- –Basic LCD
Decided which one is right for you?
Compare live prices for the GR IV Monochrome and WG-90 at major authorized retailers.
Ricoh GR IV Monochrome
Ricoh WG-90
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for portraits, GR IV Monochrome or WG-90?
GR IV Monochrome scores 6.5/10 versus 1.0/10 for WG-90 — 25.74MP — solid resolution.
What's the resolution difference between the GR IV Monochrome and WG-90?
GR IV Monochrome is 25.74 MP and WG-90 is 16 MP, so the GR IV Monochrome captures more detail for cropping and large prints.
Do the GR IV Monochrome and WG-90 have in-body image stabilization?
GR IV Monochrome has in-body image stabilization, while WG-90 does not have IBIS.
What's the weight difference between the GR IV Monochrome and WG-90?
GR IV Monochrome weighs 262 g and WG-90 weighs 194 g, so the WG-90 is 68 g lighter.
Do the GR IV Monochrome and WG-90 record 4K video?
GR IV Monochrome: 4K up to 60p. WG-90: Full HD.
Are the GR IV Monochrome and WG-90 weather sealed?
GR IV Monochrome: No. WG-90: Yes.
Which has better battery life?
Rated battery life is 250 shots (CIPA) for the GR IV Monochrome and 300 shots for the WG-90, giving the WG-90 the edge.
How much does each cost?
GR IV Monochrome launched at $2,199 and WG-90 at $329. The WG-90 is $1,870 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way GR IV Monochrome vs WG-90 vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed July 2026.
Product images courtesy of Ricoh press materials.