DJI
Osmo Action 4
1/1.3-inch sensor action camera with 10-bit D-Log M and strong stabilization.
$299
Launch priceReleased Aug 2023
Panasonic
Lumix G9 II
MFT hybrid with 8-stop IBIS and 75fps stills for wildlife on a budget.
$1,899
Launch priceReleased Sep 2023
Released within a month of each other.
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Wins
Osmo Action 4
Wins
Lumix G9 II
2 categories tied
TL;DR — Key differences
- BLumix G9 II has higher AF points / zones (779 vs 0)
- BLumix G9 II has higher Burst (electronic) (75 fps vs 15 fps)
- AOsmo Action 4 has lower Weight (145 g vs 658 g)
- BLumix G9 II has higher Max video bit rate (800 Mbps vs 200 Mbps)
- BLumix G9 II has higher RAW buffer depth (200 frames vs 60 frames)
Key specs at a glance
Size and weight, to scale
Osmo Action 4
71 × 44 × 33 mm
145 g (0.32 lb / 5.11 oz)
Lumix G9 II
134 × 102 × 90 mm
658 g (1.45 lb / 23.21 oz)
Osmo Action 4 is 64mm narrower, 58mm shorter, and 57mm thinner than Lumix G9 II.
Osmo Action 4 is 513 g lighter than Lumix G9 II.
Depth (front-to-back): 33mm Osmo Action 4 · 90mm Lumix G9 II
Sensor size, to scale
Lumix G9 II
17.3 × 13 mm · Micro Four Thirds
225 mm² area
Lens ecosystem
Native lens selection
Osmo Action 4: mount data unavailable
Lumix G9 II
✓ more lensesMicro Four Thirds
130+
native lenses available
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
Osmo Action 4
Dimensions (W×H×D mm)
Adds 70.5, 44.2, 32.8
Card types
Adds microSD
Weight
145 g vs 658 g — lower is better
Codecs
Adds HEVC
Battery life (CIPA)
640 shots vs 390 shots — higher is better
Reasons to choose
Lumix G9 II
AF points / zones
779 vs 0 — higher is better
Subject recognition
Adds Human, Face, Eye…
Dimensions (W×H×D mm)
Adds 134.3, 102.3, 90.1
Card types
Adds SD UHS-II, SD UHS-II
Burst (electronic)
75 fps vs 15 fps — higher is better
Max video bit rate
800 Mbps vs 200 Mbps — higher is better
RAW buffer depth
200 frames vs 60 frames — higher is better
Codecs
Adds Apple ProRes 422 HQ, H.265
Both cameras share
- ✓ISO min (native) — Both 100
- ✓Pre-Capture / Pre-Release — Both support pre-capture / pre-release
- ✓4K max frame rate — Both 120 fps
- ✓Weather sealing — Both support weather sealing
- ✓Touchscreen — Both support touchscreen
- ✓Wi-Fi — Both support wi-fi
Pros & cons at a glance
Editorially curated highlights and trade-offs.
Osmo Action 4
Pros
- ✓10-bit D-Log M
- ✓Good low light for action cam
- ✓Affordable
Cons
- –Superseded by Action 5 Pro
- –Fixed lens
Lumix G9 II
Pros
- ✓75fps stills mode
- ✓8-stop IBIS
- ✓Compact tele reach
Cons
- –MFT sensor
- –Smaller ecosystem
- –Video not GH-level
Decided which one is right for you?
Compare live prices for the Osmo Action 4 and Lumix G9 II at major authorized retailers.
DJI Osmo Action 4
Panasonic Lumix G9 II
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for portraits, Osmo Action 4 or Lumix G9 II?
Lumix G9 II scores 6.0/10 versus 1.0/10 for Osmo Action 4 — 25.2MP — solid resolution.
What's the resolution difference between the Osmo Action 4 and Lumix G9 II?
Osmo Action 4 is 10 MP and Lumix G9 II is 25.2 MP, so the Lumix G9 II captures more detail for cropping and large prints.
Do the Osmo Action 4 and Lumix G9 II have in-body image stabilization?
Osmo Action 4 does not have IBIS, while lumix G9 II has 8-stop in-body image stabilization.
Which shoots faster bursts — the Osmo Action 4 or the Lumix G9 II?
Osmo Action 4 reaches 15 fps electronic. Lumix G9 II reaches 75 fps electronic.
What's the weight difference between the Osmo Action 4 and Lumix G9 II?
Osmo Action 4 weighs 145 g and Lumix G9 II weighs 658 g, so the Osmo Action 4 is 513 g lighter.
Do the Osmo Action 4 and Lumix G9 II record 4K video?
Osmo Action 4: 4K up to 120p. Lumix G9 II: 5.8K Open Gate (max), 4K up to 120p.
Are the Osmo Action 4 and Lumix G9 II weather sealed?
Osmo Action 4: Yes. Lumix G9 II: Yes.
Which has better battery life?
Rated battery life is 640 shots (CIPA) for the Osmo Action 4 and 390 shots for the Lumix G9 II, giving the Osmo Action 4 the edge.
How much does each cost?
Osmo Action 4 launched at $299 and Lumix G9 II at $1,899. The Osmo Action 4 is $1,600 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.