OM System
OM-1 II
Flagship MFT with stacked sensor, 120fps, and pro wildlife features.
$2,399
Launch priceReleased Feb 2024
Ricoh
WG-90
Rugged waterproof compact with 16MP sensor, 5x 28-140mm equivalent zoom, microscope mode, and ring light.
$329
Launch priceReleased Nov 2023
OM-1 II is 3 months newer.
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Wins
OM-1 II
Wins
WG-90
2 categories tied
Which would you choose?
TL;DR — Key differences
- AOM-1 II has higher AF points / zones (1053 vs 9)
- AOM-1 II has higher ISO max (native) (102,400 vs 6,400)
- AOM-1 II has higher 1080p max frame rate (240 fps vs 30 fps)
- BWG-90 has lower Weight (194 g vs 599 g)
- AOM-1 II has higher Battery life (CIPA) (520 shots vs 300 shots)
Key specs at a glance
Size and weight, to scale
📸 Snap this size diff to shareOM-1 II
135 × 92 × 73 mm
599 g (1.32 lb / 21.13 oz)
Credit card
85.6 × 54 mm
for scale
WG-90
123 × 62 × 30 mm
194 g (0.43 lb / 6.84 oz)
OM-1 II is 12mm wider, 30mm taller, and 43mm thicker than WG-90.
OM-1 II is 405 g heavier than WG-90.
Depth (front-to-back): 73mm OM-1 II · 30mm WG-90
Sensor size, to scale
OM-1 II
17.4 × 13 mm · Compact / large-type
226 mm² area
Lens ecosystem
Native lens selection
OM-1 II
✓ more lensesMicro Four Thirds
130+
native lenses available
WG-90: mount data unavailable
Counts include current first-party and major third-party native autofocus lenses.
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
OM-1 II
Subject recognition
Adds People, Birds, Animals…
Dimensions (W×H×D mm)
Adds 134.8, 91.6, 72.7
Card types
Adds SD UHS-II, SD UHS-I
AF points / zones
1053 vs 9 — higher is better
ISO max (native)
102,400 vs 6,400 — higher is better
1080p max frame rate
240 fps vs 30 fps — higher is better
Codecs
Adds H.265, MOV
Eye AF
Only OM-1 II supports it
Reasons to choose
WG-90
Subject recognition
Adds Face, Pet
Dimensions (W×H×D mm)
Adds 122.5, 61.5, 29.5
Card types
Adds SD, SDHC, SDXC
Weight
194 g vs 599 g — lower is better
Both cameras share
- ✓Max video bit rate — Both 150 Mbps
- ✓Weather sealing — Both support weather sealing
- ✓Card slots — Both 1
Pros & cons at a glance
Editorially curated highlights and trade-offs.
OM-1 II
Pros
- ✓120fps stills
- ✓Stacked MFT
- ✓IP53 weather sealing
- ✓Computational features
Cons
- –MFT sensor size
- –Smaller ecosystem
- –Menu complexity
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 OM-1 II and WG-90 at major authorized retailers.
OM System OM-1 II
Ricoh WG-90
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for sports, OM-1 II or WG-90?
OM-1 II scores 10.0/10 versus 1.5/10 for WG-90 — 120fps burst — pro-level action capture.
What's the resolution difference between the OM-1 II and WG-90?
OM-1 II is 20.4 MP and WG-90 is 16 MP, so the OM-1 II captures more detail for cropping and large prints.
Do the OM-1 II and WG-90 have in-body image stabilization?
OM-1 II has 8.5-stop in-body image stabilization, while WG-90 does not have IBIS.
What's the weight difference between the OM-1 II and WG-90?
OM-1 II weighs 599 g and WG-90 weighs 194 g, so the WG-90 is 405 g lighter.
Do the OM-1 II and WG-90 record 4K video?
OM-1 II: 4K up to 60p. WG-90: Full HD.
Are the OM-1 II and WG-90 weather sealed?
OM-1 II: Yes. WG-90: Yes.
Which has better battery life?
Rated battery life is 520 shots (CIPA) for the OM-1 II and 300 shots for the WG-90, giving the OM-1 II the edge.
How much does each cost?
OM-1 II launched at $2,399 and WG-90 at $329. The WG-90 is $2,070 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way OM-1 II vs WG-90 vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed July 2026.