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
Panasonic
Lumix GH7
Micro Four Thirds video flagship with ProRes RAW and open gate.
$2,199
Launch priceReleased Jun 2024
Lumix GH7 is 1.8 years newer.
Affiliate disclosure: As an Amazon Associate, Cameraegg earns from qualifying purchases. Cameraegg may also earn commission from B&H links, at no extra cost to you.
Wins
Osmo Action 3
Wins
Lumix GH7
2 categories tied
Which would you choose?
TL;DR — Key differences
- BLumix GH7 has higher AF points / zones (315 vs 0)
- BLumix GH7 has higher Max video bit rate (1900 Mbps vs 200 Mbps)
- AOsmo Action 3 has lower Weight (145 g vs 805 g)
- BLumix GH7 has higher Burst (electronic) (75 fps vs 15 fps)
- BLumix GH7 has higher RAW buffer depth (170 frames vs 60 frames)
Key specs at a glance
Size and weight, to scale
📸 Snap this size diff to shareOsmo Action 3
71 × 44 × 33 mm
145 g (0.32 lb / 5.11 oz)
Credit card
85.6 × 54 mm
for scale
Lumix GH7
138 × 100 × 100 mm
805 g (1.77 lb / 28.40 oz)
Osmo Action 3 is 68mm narrower, 56mm shorter, and 67mm thinner than Lumix GH7.
Osmo Action 3 is 660 g lighter than Lumix GH7.
Depth (front-to-back): 33mm Osmo Action 3 · 100mm Lumix GH7
Back view, to scale
Width × Height — same proportions as the front of the body.
Osmo Action 3
71 × 44 mm
Credit card
85.6 × 54 mm
Lumix GH7
138 × 100 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
Osmo Action 3
71 × 33 mm
Credit card
85.6 × 54 mm
Lumix GH7
138 × 100 mm
Sensor size, to scale
Lumix GH7
17.3 × 13 mm · Compact / large-type
225 mm² area
Lens ecosystem
Native lens selection
Osmo Action 3: mount data unavailable
Lumix GH7
✓ 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 3
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 805 g — lower is better
Codecs
Adds HEVC
Battery life (CIPA)
640 shots vs 350 shots — higher is better
Reasons to choose
Lumix GH7
AF points / zones
315 vs 0 — higher is better
Subject recognition
Adds Human, Face, Eye…
Dimensions (W×H×D mm)
Adds 138.4, 100.3, 99.6
Card types
Adds CFexpress Type B, SD/SDHC/SDXC
Max video bit rate
1900 Mbps vs 200 Mbps — higher is better
Burst (electronic)
75 fps vs 15 fps — higher is better
Codecs
Adds H.265, ProRes RAW, ProRes RAW HQ…
RAW buffer depth
170 frames vs 60 frames — higher is better
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 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
Lumix GH7
Pros
- ✓Pro video toolset
- ✓Open gate
- ✓Compact MFT
- ✓Strong codecs
Cons
- –MFT sensor size
- –Still resolution limits
- –Premium for MFT
Decided which one is right for you?
Compare live prices for the Osmo Action 3 and Lumix GH7 at major authorized retailers.
DJI Osmo Action 3
Panasonic Lumix GH7
Affiliate disclosure: As an Amazon Associate, Cameraegg earns from qualifying purchases. Cameraegg may also earn commission from B&H links, at no extra cost to you.
Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for portraits, Osmo Action 3 or Lumix GH7?
Lumix GH7 scores 5.0/10 versus 1.0/10 for Osmo Action 3 — 25.2MP — solid resolution.
What's the resolution difference between the Osmo Action 3 and Lumix GH7?
Osmo Action 3 is 12 MP and Lumix GH7 is 25.2 MP, so the Lumix GH7 captures more detail for cropping and large prints.
Do the Osmo Action 3 and Lumix GH7 have in-body image stabilization?
Osmo Action 3 uses Electronic image stabilization (electronic), while Lumix GH7 has 7.5-stop in-body image stabilization.
Which shoots faster bursts — the Osmo Action 3 or the Lumix GH7?
Osmo Action 3 reaches 15 fps electronic. Lumix GH7 reaches 75 fps electronic.
What's the weight difference between the Osmo Action 3 and Lumix GH7?
Osmo Action 3 weighs 145 g and Lumix GH7 weighs 805 g, so the Osmo Action 3 is 660 g lighter.
Do the Osmo Action 3 and Lumix GH7 record 4K video?
Osmo Action 3: 4K up to 120p. Lumix GH7: 4K up to 120p.
Are the Osmo Action 3 and Lumix GH7 weather sealed?
Osmo Action 3: Yes. Lumix GH7: Yes.
Which has better battery life?
Rated battery life is 640 shots (CIPA) for the Osmo Action 3 and 350 shots for the Lumix GH7, giving the Osmo Action 3 the edge.
How much does each cost?
Osmo Action 3 launched at $329 and Lumix GH7 at $2,199. The Osmo Action 3 is $1,870 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way Osmo Action 3 vs Lumix GH7 vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed June 2026.
Product images courtesy of DJI and Panasonic press materials.