Canon
EOS C400
RF-mount Super 35 cinema camera with 6K 60p, Cinema RAW Light, and built-in 9-stop ND.
$7,999
Launch priceReleased Sep 2024
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
EOS C400 is 3 months newer.
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Wins
EOS C400
Wins
GO 3S
1 categories tied
Which would you choose?
TL;DR — Key differences
- AEOS C400 has higher AF points / zones (1053 vs 0)
- BGO 3S has lower Weight (135.4 g vs 1450 g)
- AEOS C400 has higher ISO max (native) (25,600 vs 3,200)
- AEOS C400 has higher 4K max frame rate (120 fps vs 30 fps)
- AEOS C400 has higher Card slots (2 vs 1)
Key specs at a glance
Size and weight, to scale
📸 Snap this size diff to shareEOS C400
162 × 138 × 130 mm
1450 g (3.20 lb / 51.15 oz)
Credit card
85.6 × 54 mm
for scale
GO 3S
54 × 25 × 26 mm
135.4 g (0.30 lb / 4.78 oz)
EOS C400 is 108mm wider, 113mm taller, and 104mm thicker than GO 3S.
EOS C400 is 1315 g heavier than GO 3S.
Depth (front-to-back): 130mm EOS C400 · 26mm GO 3S
Back view, to scale
Width × Height — same proportions as the front of the body.
EOS C400
162 × 138 mm
Credit card
85.6 × 54 mm
GO 3S
54 × 25 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
EOS C400
162 × 130 mm
Credit card
85.6 × 54 mm
GO 3S
54 × 26 mm
Sensor size, to scale
EOS C400
26.1 × 13.8 mm · APS-C
360 mm² area
Lens ecosystem
Native lens selection
EOS C400
✓ more lensesCanon RF
105+
native lenses available
GO 3S: 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
EOS C400
AF points / zones
1053 vs 0 — higher is better
Subject recognition
Adds Human, Animal, Bird…
Codecs
Adds Cinema RAW Light, XF-AVC, Apple ProRes
Dimensions (W×H×D mm)
Adds 162, 138, 130
Card types
Adds SD UHS-II
ISO max (native)
25,600 vs 3,200 — higher is better
4K max frame rate
120 fps vs 30 fps — higher is better
Eye AF
Only EOS C400 supports it
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 1450 g — lower is better
Resolution
12 MP vs 6.2 MP — higher is better
Both cameras share
- ✓ISO min (native) — Both 100
- ✓Weather sealing — Both support weather sealing
- ✓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.
EOS C400
Pros
- ✓6K 60p internal
- ✓Built-in 9-stop ND
- ✓Dual gain sensor
- ✓RF mount
Cons
- –Super 35 only
- –Premium price
- –Large media needs
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)
Decided which one is right for you?
Compare live prices for the EOS C400 and GO 3S at major authorized retailers.
Canon EOS C400
Insta360 GO 3S
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for video, EOS C400 or GO 3S?
EOS C400 scores 9.0/10 versus 1.5/10 for GO 3S — 6K video for oversampled 4K.
What's the resolution difference between the EOS C400 and GO 3S?
EOS C400 is 6.2 MP and GO 3S is 12 MP, so the GO 3S captures more detail for cropping and large prints.
Do the EOS C400 and GO 3S have in-body image stabilization?
EOS C400 has 7-stop in-body image stabilization, while GO 3S does not have IBIS.
What's the weight difference between the EOS C400 and GO 3S?
EOS C400 weighs 1450 g and GO 3S weighs 135.4 g, so the GO 3S is 1315 g lighter.
Do the EOS C400 and GO 3S record 4K video?
EOS C400: 6K 60p (max), 4K up to 120p. GO 3S: 4K up to 30p.
Are the EOS C400 and GO 3S weather sealed?
EOS C400: Yes. GO 3S: Yes.
How much does each cost?
EOS C400 launched at $7,999 and GO 3S at $400. The GO 3S is $7,599 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way EOS C400 vs GO 3S vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed July 2026.
Product images courtesy of Canon and Insta360 press materials.