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
X4
8K 360 action camera with dual 1/2-inch sensors, 72MP photos, 4K60 single-lens mode, FlowState stabilization, and 10m waterproofing.
$499
Released Apr 2024
EOS R6 Mark III is 1.6 years newer.
Wins
EOS R6 Mark III
Wins
X4
2 categories tied
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)
- BX4 has lower Weight (203 g vs 699 g)
- BX4 has higher Resolution (72 MP vs 32.5 MP)
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)
X4
46 × 124 × 38 mm
203 g (0.45 lb / 7.16 oz)
EOS R6 Mark III is 25mm shorter than X4 but it is also 92mm wider and 51mm thicker.
EOS R6 Mark III is 496 g heavier than X4.
Depth (front-to-back): 88mm EOS R6 Mark III · 38mm X4
Back view, to scale
Width × Height — same proportions as the front of the body.
EOS R6 Mark III
138 × 98 mm
X4
46 × 124 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
X4
46 × 38 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
X4: 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
Codecs
Adds CRM, XF-HEVC S, XF-AVC S
AA filter
Only EOS R6 Mark III supports it
Reasons to choose
X4
Dimensions (W×H×D mm)
Adds 46, 123.6, 37.6
Card types
Adds microSD
Weight
203 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
- ✓Weather sealing — Both support weather sealing
- ✓Battery life (CIPA) — Both 640 shots
- ✓Touchscreen — Both support touchscreen
- ✓Wi-Fi — Both support wi-fi
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
X4
Pros
- ✓8K 360 video
- ✓72MP 360 photos
- ✓4K60 single-lens mode
- ✓10m waterproof
Cons
- –360 workflow needs reframing
- –8K runtime ~75 min
- –Larger than Ace Pro
Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for portraits, EOS R6 Mark III or X4?
EOS R6 Mark III scores 8.0/10 versus 3.0/10 for X4 — 32.5MP — ample resolution for portraits.
What's the resolution difference between the EOS R6 Mark III and X4?
EOS R6 Mark III is 32.5 MP and X4 is 72 MP, so the X4 captures more detail for cropping and large prints.
Do the EOS R6 Mark III and X4 have in-body image stabilization?
EOS R6 Mark III has 8.5-stop in-body image stabilization, while x4 does not have IBIS.
Which shoots faster bursts — the EOS R6 Mark III or the X4?
EOS R6 Mark III reaches 40 fps electronic. X4 reaches 20 fps electronic.
What's the weight difference between the EOS R6 Mark III and X4?
EOS R6 Mark III weighs 699 g and X4 weighs 203 g, so the X4 is 496 g lighter.
Do the EOS R6 Mark III and X4 record 4K video?
EOS R6 Mark III: 4K up to 120p. X4: 8K (max), 4K up to 60p.
Are the EOS R6 Mark III and X4 weather sealed?
EOS R6 Mark III: Yes. X4: Yes.
Which has better battery life?
Rated battery life is 640 shots (CIPA) for the EOS R6 Mark III and 640 shots for the X4, giving the X4 the edge.
How much does each cost?
EOS R6 Mark III launched at $2,799 and X4 at $499. The X4 is $2,300 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of Canon and Insta360 press materials.