Canon
EOS R8 Mark II
Compact 24.2MP full-frame RF body with 5-axis IBIS (up to 7.5-stop Coordinated Control IS), Dual Pixel CMOS AF II, 40fps electronic bursts, and 6K-oversampled 4K 60p.
$1,899
Launch priceReleased Sep 2026
DJI
Osmo Action 3
Rugged 1/1.7-inch action camera with 4K 120p, dual touchscreens, RockSteady stabilization, and 16m waterproofing without a case.
$329
Launch priceReleased Sep 2022
EOS R8 Mark II is 4 years newer.
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Wins
EOS R8 Mark II
Wins
Osmo Action 3
3 categories tied
Which would you choose?
TL;DR — Key differences
- AEOS R8 Mark II has higher AF points / zones (1053 vs 0)
- BOsmo Action 3 has lower Weight (145 g vs 499 g)
- AEOS R8 Mark II has higher Burst (electronic) (40 fps vs 15 fps)
- AEOS R8 Mark II has higher Resolution (24.2 MP vs 12 MP)
- BOsmo Action 3 has higher 4K max frame rate (120 fps vs 59.94 fps)
Key specs at a glance
Size and weight, to scale
📸 Snap this size diff to share
EOS R8 Mark II
131 × 90 × 80 mm
499 g (1.10 lb / 17.60 oz)
Credit card
85.6 × 54 mm
for scale
Osmo Action 3
71 × 44 × 33 mm
145 g (0.32 lb / 5.11 oz)
EOS R8 Mark II is 61mm wider, 46mm taller, and 47mm thicker than Osmo Action 3.
EOS R8 Mark II is 354 g heavier than Osmo Action 3.
Depth (front-to-back): 80mm EOS R8 Mark II · 33mm Osmo Action 3
Back view, to scale
Width × Height — same proportions as the front of the body.
EOS R8 Mark II
131 × 90 mm
Credit card
85.6 × 54 mm
Osmo Action 3
71 × 44 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
EOS R8 Mark II
131 × 80 mm
Credit card
85.6 × 54 mm
Osmo Action 3
71 × 33 mm
Sensor size, to scale
EOS R8 Mark II
36 × 24 mm · Full Frame
864 mm² area
Lens ecosystem
Native lens selection
EOS R8 Mark II
✓ more lensesCanon RF
105+
native lenses available
Osmo Action 3: 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 R8 Mark II
AF points / zones
1053 vs 0 — higher is better
Subject recognition
Adds Human, Animal, Bird…
Codecs
Adds XF-HEVC S
Stabilization modes
Adds IBIS, Coordinated Control IS, Movie Digital IS…
Dimensions (W×H×D mm)
Adds 131.3, 89.9, 79.8
Card types
Adds SD, SDHC, SDXC
Burst (electronic)
40 fps vs 15 fps — higher is better
Resolution
24.2 MP vs 12 MP — higher is better
Reasons to choose
Osmo Action 3
Codecs
Adds H.264, HEVC
Stabilization modes
Adds RockSteady, HorizonBalancing, HorizonSteady
Dimensions (W×H×D mm)
Adds 70.5, 44.2, 32.8
Card types
Adds microSD
Weight
145 g vs 499 g — lower is better
4K max frame rate
120 fps vs 59.94 fps — higher is better
Battery life (CIPA)
640 shots vs 340 shots — higher is better
1080p max frame rate
240 fps vs 180 fps — higher is better
Both cameras share
- ✓ISO min (native) — Both 100
- ✓Burst (mechanical) — Both 6 fps
- ✓Pre-Capture / Pre-Release — Both support pre-capture / pre-release
- ✓Weather sealing — Both support weather sealing
- ✓Card slots — Both 1
- ✓Touchscreen — Both support touchscreen
Pros & cons at a glance
Editorially curated highlights and trade-offs.
EOS R8 Mark II
Pros
- ✓Lightest EOS full-frame body with IBIS (546g)
- ✓Up to 7.5-stop Coordinated Control IS
- ✓40fps electronic + 20-frame pre-capture
- ✓Uncropped 6K-oversampled 4K 60p / FHD 180p
- ✓Wi-Fi 6, USB 10 Gbps, headphone jack
Cons
- –Same 24.2MP sensor as original R8
- –Single SD UHS-II slot
- –LP-E17 battery (~340 LCD / 220 EVF shots)
- –No mechanical shutter
Osmo Action 3
Pros
- ✓4K 120p
- ✓Dual touchscreens
- ✓16m waterproof without case
- ✓RockSteady and HorizonSteady
Cons
- –Older than Action 4/5 Pro
- –Small action-cam sensor
- –Fixed ultra-wide lens
Decided which one is right for you?
Compare live prices for the EOS R8 Mark II and Osmo Action 3 at major authorized retailers.
Canon EOS R8 Mark II
DJI Osmo Action 3
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for portraits, EOS R8 Mark II or Osmo Action 3?
EOS R8 Mark II scores 7.5/10 versus 1.0/10 for Osmo Action 3 — 24.2MP — solid resolution.
What's the resolution difference between the EOS R8 Mark II and Osmo Action 3?
EOS R8 Mark II is 24.2 MP and Osmo Action 3 is 12 MP, so the EOS R8 Mark II captures more detail for cropping and large prints.
Do the EOS R8 Mark II and Osmo Action 3 have in-body image stabilization?
EOS R8 Mark II has 7.5-stop in-body image stabilization, while Osmo Action 3 uses Electronic image stabilization (electronic).
Which shoots faster bursts — the EOS R8 Mark II or the Osmo Action 3?
EOS R8 Mark II reaches 40 fps electronic. Osmo Action 3 reaches 15 fps electronic.
What's the weight difference between the EOS R8 Mark II and Osmo Action 3?
EOS R8 Mark II weighs 499 g and Osmo Action 3 weighs 145 g, so the Osmo Action 3 is 354 g lighter.
Do the EOS R8 Mark II and Osmo Action 3 record 4K video?
EOS R8 Mark II: 4K up to 59.94p. Osmo Action 3: 4K up to 120p.
Are the EOS R8 Mark II and Osmo Action 3 weather sealed?
EOS R8 Mark II: Yes. Osmo Action 3: Yes.
Which has better battery life?
Rated battery life is 340 shots (CIPA) for the EOS R8 Mark II and 640 shots for the Osmo Action 3, giving the Osmo Action 3 the edge.
How much does each cost?
EOS R8 Mark II launched at $1,899 and Osmo Action 3 at $329. The Osmo Action 3 is $1,570 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way EOS R8 Mark II vs Osmo Action 3 vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed September 2026.
Product images courtesy of Canon and DJI press materials.