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
X3
5.7K 360 camera with dual 1/2-inch 48MP sensors, 72MP photos, 4K single-lens mode, and IPX8 10m waterproofing.
$449
Launch priceReleased Sep 2022
EOS C400 is 2 years newer.
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Wins
EOS C400
Wins
X3
3 categories tied
Which would you choose?
TL;DR — Key differences
- AEOS C400 has higher AF points / zones (1053 vs 0)
- BX3 has higher Resolution (72 MP vs 6.2 MP)
- BX3 has lower Weight (180 g vs 1450 g)
- AEOS C400 has higher ISO max (native) (25,600 vs 6,400)
- AEOS C400 has higher 4K max frame rate (120 fps vs 30 fps)
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
X3
46 × 114 × 33 mm
180 g (0.40 lb / 6.35 oz)
EOS C400 is 116mm wider, 24mm taller, and 97mm thicker than X3.
EOS C400 is 1270 g heavier than X3.
Depth (front-to-back): 130mm EOS C400 · 33mm X3
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
X3
46 × 114 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
X3
46 × 33 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
X3: 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 6,400 — 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
X3
Codecs
Adds H.264, H.265
Stabilization modes
Adds FlowState, 360° Horizon Lock, Active HDR
Dimensions (W×H×D mm)
Adds 46, 114, 33.1
Card types
Adds microSD
Resolution
72 MP vs 6.2 MP — higher is better
Weight
180 g vs 1450 g — lower is better
Both cameras share
- ✓ISO min (native) — Both 100
- ✓Pre-Capture / Pre-Release — Both support pre-capture / pre-release
- ✓Max video bit rate — Both 200 Mbps
- ✓Internal RAW video — Both support internal raw video
- ✓Weather sealing — Both support weather sealing
- ✓Battery life (CIPA) — Both 640 shots
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
X3
Pros
- ✓72MP 360 photos
- ✓5.7K60 360 video
- ✓Great value used
- ✓10m waterproof
Cons
- –No 8K vs X4
- –Single-lens capped at 4K30
- –Older AI editing
Decided which one is right for you?
Compare live prices for the EOS C400 and X3 at major authorized retailers.
Canon EOS C400
Insta360 X3
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for video, EOS C400 or X3?
EOS C400 scores 9.0/10 versus 4.0/10 for X3 — 6K video for oversampled 4K.
What's the resolution difference between the EOS C400 and X3?
EOS C400 is 6.2 MP and X3 is 72 MP, so the X3 captures more detail for cropping and large prints.
Do the EOS C400 and X3 have in-body image stabilization?
EOS C400 has 7-stop in-body image stabilization, while X3 uses FlowState + 360° Horizon Lock (electronic).
Which shoots faster bursts — the EOS C400 or the X3?
EOS C400 reaches 20 fps electronic. X3 reaches 15 fps electronic.
What's the weight difference between the EOS C400 and X3?
EOS C400 weighs 1450 g and X3 weighs 180 g, so the X3 is 1270 g lighter.
Do the EOS C400 and X3 record 4K video?
EOS C400: 6K 60p (max), 4K up to 120p. X3: 4K up to 30p.
Are the EOS C400 and X3 weather sealed?
EOS C400: Yes. X3: Yes.
Which has better battery life?
Rated battery life is 640 shots (CIPA) for the EOS C400 and 640 shots for the X3, giving the X3 the edge.
How much does each cost?
EOS C400 launched at $7,999 and X3 at $449. The X3 is $7,550 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way EOS C400 vs X3 vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed June 2026.
Product images courtesy of Canon and Insta360 press materials.