Insta360
GO 3S
Thumb-sized 4K POV camera with magnetic mounting, Action Pod remote preview, FlowState stabilization, and 10m waterproof body.
$400
Launch priceReleased Jun 2024
OM System
OM-1 II
Flagship MFT with stacked sensor, 120fps, and pro wildlife features.
$2,399
Launch priceReleased Feb 2024
GO 3S is 4 months newer.
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Wins
GO 3S
Wins
OM-1 II
1 categories tied
Which would you choose?
TL;DR — Key differences
- BOM-1 II has higher AF points / zones (1053 vs 0)
- BOM-1 II has higher ISO max (native) (102,400 vs 3,200)
- BOM-1 II has higher 1080p max frame rate (240 fps vs 50 fps)
- AGO 3S has lower Weight (135.4 g vs 599 g)
- BOM-1 II has higher 4K max frame rate (60 fps vs 30 fps)
Key specs at a glance
Size and weight, to scale
📸 Snap this size diff to share
GO 3S
54 × 25 × 26 mm
135.4 g (0.30 lb / 4.78 oz)
Credit card
85.6 × 54 mm
for scale
OM-1 II
135 × 92 × 73 mm
599 g (1.32 lb / 21.13 oz)
GO 3S is 80mm narrower, 67mm shorter, and 47mm thinner than OM-1 II.
GO 3S is 464 g lighter than OM-1 II.
Depth (front-to-back): 26mm GO 3S · 73mm OM-1 II
Back view, to scale
Width × Height — same proportions as the front of the body.
GO 3S
54 × 25 mm
Credit card
85.6 × 54 mm
OM-1 II
135 × 92 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
GO 3S
54 × 26 mm
Credit card
85.6 × 54 mm
OM-1 II
135 × 73 mm
Sensor size, to scale
OM-1 II
17.4 × 13 mm · Compact / large-type
226 mm² area
Lens ecosystem
Native lens selection
GO 3S: mount data unavailable
OM-1 II
✓ more lensesMicro Four Thirds
130+
native lenses available
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
GO 3S
Codecs
Adds H.264/AVC
Stabilization modes
Adds FlowState, Horizon Lock
Dimensions (W×H×D mm)
Adds 54.4, 24.8, 25.6
Card types
Adds microSD
Weight
135.4 g vs 599 g — lower is better
Reasons to choose
OM-1 II
AF points / zones
1053 vs 0 — higher is better
Subject recognition
Adds People, Birds, Animals…
Codecs
Adds H.264, H.265, MOV
Dimensions (W×H×D mm)
Adds 134.8, 91.6, 72.7
Card types
Adds SD UHS-II, SD UHS-I
ISO max (native)
102,400 vs 3,200 — higher is better
1080p max frame rate
240 fps vs 50 fps — higher is better
Eye AF
Only OM-1 II supports it
Both cameras share
- ✓Weather sealing — Both support weather sealing
- ✓Card slots — Both 1
- ✓Touchscreen — Both support touchscreen
- ✓Wi-Fi — Both support wi-fi
- ✓Bluetooth — Both support bluetooth
Pros & cons at a glance
Editorially curated highlights and trade-offs.
GO 3S
Pros
- ✓4K30 in a 39g body
- ✓Action Pod with 2.2-inch flip screen
- ✓FlowState + Horizon Lock
- ✓10m waterproof (camera only)
- ✓140 min runtime with Action Pod
Cons
- –Tiny 1/2.3-inch sensor
- –Fixed 16mm lens
- –Action Pod not waterproof
- –Built-in storage only (64/128GB)
OM-1 II
Pros
- ✓120fps stills
- ✓Stacked MFT
- ✓IP53 weather sealing
- ✓Computational features
Cons
- –MFT sensor size
- –Smaller ecosystem
- –Menu complexity
Decided which one is right for you?
Compare live prices for the GO 3S and OM-1 II at major authorized retailers.
Insta360 GO 3S
OM System OM-1 II
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for sports, GO 3S or OM-1 II?
OM-1 II scores 10.0/10 versus 4.0/10 for GO 3S — 120fps burst — pro-level action capture.
What's the resolution difference between the GO 3S and OM-1 II?
GO 3S is 12 MP and OM-1 II is 20.4 MP, so the OM-1 II captures more detail for cropping and large prints.
Do the GO 3S and OM-1 II have in-body image stabilization?
GO 3S does not have IBIS, while OM-1 II has 8.5-stop in-body image stabilization.
What's the weight difference between the GO 3S and OM-1 II?
GO 3S weighs 135.4 g and OM-1 II weighs 599 g, so the GO 3S is 464 g lighter.
Do the GO 3S and OM-1 II record 4K video?
GO 3S: 4K up to 30p. OM-1 II: 4K up to 60p.
Are the GO 3S and OM-1 II weather sealed?
GO 3S: Yes. OM-1 II: Yes.
How much does each cost?
GO 3S launched at $400 and OM-1 II at $2,399. The GO 3S is $1,999 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way GO 3S vs OM-1 II vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed June 2026.
Product images courtesy of Insta360 and OM System press materials.