Canon
EOS R6 Mark III
Hybrid 32.5MP full-frame RF body with 7K RAW video, 40fps electronic burst, 8.5-stop IBIS, and Dual Pixel CMOS AF II.
$2,799
Released Nov 2025
Insta360
X3
5.7K 360 camera with dual 1/2-inch 48MP sensors, 72MP photos, 4K single-lens mode, and IPX8 10m waterproofing.
$449
Released Sep 2022
EOS R6 Mark III is 3.2 years newer.
Wins
EOS R6 Mark III
Wins
X3
2 categories tied
Check current prices
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TL;DR — Key differences
- AEOS R6 Mark III has higher AF points / zones (1053 vs 0)
- AEOS R6 Mark III has higher Max video bit rate (2600 Mbps vs 200 Mbps)
- AEOS R6 Mark III has higher ISO max (native) (64,000 vs 6,400)
- AEOS R6 Mark III has higher 4K max frame rate (120 fps vs 30 fps)
- BX3 has lower Weight (180 g vs 699 g)
Key specs at a glance
Size and weight, to scale
EOS R6 Mark III
138 × 98 × 88 mm
699 g (1.54 lb / 24.66 oz)
X3
46 × 114 × 33 mm
180 g (0.40 lb / 6.35 oz)
EOS R6 Mark III is 16mm shorter than X3 but it is also 92mm wider and 55mm thicker.
EOS R6 Mark III is 519 g heavier than X3.
Depth (front-to-back): 88mm EOS R6 Mark III · 33mm X3
Back view, to scale
Width × Height — same proportions as the front of the body.
EOS R6 Mark III
138 × 98 mm
X3
46 × 114 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
EOS R6 Mark III
138 × 88 mm
X3
46 × 33 mm
Sensor size, to scale
EOS R6 Mark III
35.9 × 23.9 mm · Full Frame
858 mm² area
Lens ecosystem
Native lens selection
EOS R6 Mark III
✓ 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 R6 Mark III
AF points / zones
1053 vs 0 — higher is better
Subject recognition
Adds People, Dogs, Cats…
Dimensions (W×H×D mm)
Adds 138.4, 98.4, 88.4
Card types
Adds CFexpress Type B, SD UHS-II
Max video bit rate
2600 Mbps vs 200 Mbps — higher is better
ISO max (native)
64,000 vs 6,400 — higher is better
4K max frame rate
120 fps vs 30 fps — higher is better
Burst (electronic)
40 fps vs 15 fps — higher is better
Reasons to choose
X3
Dimensions (W×H×D mm)
Adds 46, 114, 33.1
Card types
Adds microSD
Weight
180 g vs 699 g — lower is better
Resolution
72 MP vs 32.5 MP — higher is better
Both cameras share
- ✓ISO min (native) — Both 100
- ✓Pre-Capture / Pre-Release — Both support pre-capture / pre-release
- ✓Internal RAW video — Both support internal raw video
- ✓Weather sealing — Both support weather sealing
- ✓Battery life (CIPA) — Both 640 shots
- ✓Touchscreen — Both support touchscreen
Pros & cons at a glance
Editorially curated highlights and trade-offs.
EOS R6 Mark III
Pros
- ✓32.5MP full-frame sensor
- ✓7K RAW video & 4K 120p
- ✓40fps electronic burst with Pre-Continuous
- ✓8.5-stop IBIS
Cons
- –Single CFexpress Type B + SD slot
- –Smaller LCD than R5 II
- –LP-E6P required for full features
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
Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for portraits, EOS R6 Mark III or X3?
EOS R6 Mark III scores 8.0/10 versus 3.0/10 for X3 — 32.5MP — ample resolution for portraits.
What's the resolution difference between the EOS R6 Mark III and X3?
EOS R6 Mark III is 32.5 MP and X3 is 72 MP, so the X3 captures more detail for cropping and large prints.
Do the EOS R6 Mark III and X3 have in-body image stabilization?
EOS R6 Mark III has 8.5-stop in-body image stabilization, while x3 does not have IBIS.
Which shoots faster bursts — the EOS R6 Mark III or the X3?
EOS R6 Mark III reaches 40 fps electronic. X3 reaches 15 fps electronic.
What's the weight difference between the EOS R6 Mark III and X3?
EOS R6 Mark III weighs 699 g and X3 weighs 180 g, so the X3 is 519 g lighter.
Do the EOS R6 Mark III and X3 record 4K video?
EOS R6 Mark III: 4K up to 120p. X3: 4K up to 30p.
Are the EOS R6 Mark III and X3 weather sealed?
EOS R6 Mark III: Yes. X3: Yes.
Which has better battery life?
Rated battery life is 640 shots (CIPA) for the EOS R6 Mark III and 640 shots for the X3, giving the X3 the edge.
How much does each cost?
EOS R6 Mark III launched at $2,799 and X3 at $449. The X3 is $2,350 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of Canon and Insta360 press materials.