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
GoPro
HERO13 Black
Flagship GoPro with 1/1.9-inch sensor, 5.3K60 video, 4K120, HyperSmooth 6.0, HB-Series lens auto-detect, and 10m waterproofing.
$399
Launch priceReleased Sep 2024
HERO13 Black is 2 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
HERO13 Black
5 categories tied
Which would you choose?
TL;DR — Key differences
- BHERO13 Black has higher Resolution (27.6 MP vs 12 MP)
- AOsmo Action 3 has higher ISO max (native) (12,800 vs 6,400)
- BHERO13 Black has higher RAW buffer depth (120 frames vs 60 frames)
- AOsmo Action 3 has higher Max video bit rate (200 Mbps vs 120 Mbps)
- AOsmo Action 3 has higher Waterproof depth (16 m vs 10.1 m)
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
HERO13 Black
72 × 51 × 34 mm
121 g (0.27 lb / 4.27 oz)
Osmo Action 3 is 1mm narrower, 7mm shorter, and 1mm thinner than HERO13 Black.
Osmo Action 3 is 24 g heavier than HERO13 Black.
Depth (front-to-back): 33mm Osmo Action 3 · 34mm HERO13 Black
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
HERO13 Black
72 × 51 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
HERO13 Black
72 × 34 mm
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
Codecs
Adds H.264, HEVC
Stabilization modes
Adds RockSteady, HorizonBalancing, HorizonSteady
Dimensions (W×H×D mm)
Adds 70.5, 44.2, 32.8
ISO max (native)
12,800 vs 6,400 — higher is better
Max video bit rate
200 Mbps vs 120 Mbps — higher is better
Waterproof depth
16 m vs 10.1 m — higher is better
Battery runtime
160 min vs 150 min — higher is better
Reasons to choose
HERO13 Black
Codecs
Adds H.265/HEVC
Stabilization modes
Adds HyperSmooth 6.0, 360° Horizon Lock, AutoBoost
Dimensions (W×H×D mm)
Adds 71.8, 50.8, 33.6
Card types
Adds microSDHC, microSDXC
Resolution
27.6 MP vs 12 MP — higher is better
RAW buffer depth
120 frames vs 60 frames — higher is better
Burst (mechanical)
8 fps vs 6 fps — higher is better
Burst (electronic)
20 fps vs 15 fps — 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
- ✓1080p max frame rate — Both 240 fps
- ✓Weather sealing — Both support weather sealing
- ✓Card slots — Both 1
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
HERO13 Black
Pros
- ✓5.3K60 and 4K120 video
- ✓1/1.9-inch sensor
- ✓HyperSmooth 6.0 + Burst Slo-Mo
- ✓10m waterproof
Cons
- –Small sensor vs Action 5 Pro
- –Fixed lens
- –Enduro battery not backward compatible
Decided which one is right for you?
Compare live prices for the Osmo Action 3 and HERO13 Black at major authorized retailers.
DJI Osmo Action 3
GoPro HERO13 Black
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 sports, Osmo Action 3 or HERO13 Black?
HERO13 Black scores 10.0/10 versus 8.5/10 for Osmo Action 3 — 20fps burst — fast action ready.
What's the resolution difference between the Osmo Action 3 and HERO13 Black?
Osmo Action 3 is 12 MP and HERO13 Black is 27.6 MP, so the HERO13 Black captures more detail for cropping and large prints.
How does stabilization compare between the Osmo Action 3 and HERO13 Black?
Osmo Action 3 uses Electronic image stabilization (electronic), while HERO13 Black does not have IBIS.
Which shoots faster bursts — the Osmo Action 3 or the HERO13 Black?
Osmo Action 3 reaches 15 fps electronic. HERO13 Black reaches 20 fps electronic.
What's the weight difference between the Osmo Action 3 and HERO13 Black?
Osmo Action 3 weighs 145 g and HERO13 Black weighs 121 g, so the HERO13 Black is 24 g lighter.
Do the Osmo Action 3 and HERO13 Black record 4K video?
Osmo Action 3: 4K up to 120p. HERO13 Black: 4K up to 120p.
Are the Osmo Action 3 and HERO13 Black weather sealed?
Osmo Action 3: Yes. HERO13 Black: Yes.
Which has better battery runtime?
Osmo Action 3 is rated for about 160 minutes of continuous recording and HERO13 Black for about 150 minutes, giving the Osmo Action 3 the edge.
How much does each cost?
Osmo Action 3 launched at $329 and HERO13 Black at $399. The Osmo Action 3 is $70 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way Osmo Action 3 vs HERO13 Black vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed July 2026.
Product images courtesy of DJI and GoPro press materials.