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
Released 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
Released Sep 2024
HERO13 Black is 2 years newer.
Wins
Osmo Action 3
Wins
HERO13 Black
6 categories tied
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)
- BHERO13 Black has higher Burst (mechanical) (8 fps vs 6 fps)
- BHERO13 Black has higher Burst (electronic) (20 fps vs 15 fps)
Key specs at a glance
Size and weight, to scale
Osmo Action 3
71 × 44 × 33 mm
145 g (0.32 lb / 5.11 oz)
HERO13 Black
72 × 51 × 34 mm
159 g (0.35 lb / 5.61 oz)
Osmo Action 3 is 1mm narrower, 7mm shorter, and 1mm thinner than HERO13 Black.
Osmo Action 3 is 14 g lighter than HERO13 Black.
Depth (front-to-back): 33mm Osmo Action 3 · 34mm HERO13 Black
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
Dimensions (W×H×D mm)
Adds 70.5, 44.2, 32.8
ISO max (native)
12,800 vs 6,400 — higher is better
Weight
145 g vs 159 g — lower is better
Reasons to choose
HERO13 Black
Codecs
Adds H.265 (HEVC)
Dimensions (W×H×D mm)
Adds 71.8, 50.8, 33.6
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
IBIS effectiveness
7 stops vs 6 stops — 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
- ✓Max video bit rate — Both 200 Mbps
- ✓Weather sealing — Both support weather sealing
- ✓Battery life (CIPA) — Both 640 shots
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
Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for travel, Osmo Action 3 or HERO13 Black?
HERO13 Black scores 8.0/10 versus 7.0/10 for Osmo Action 3 — 159g — ultralight for all-day carry.
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.
Do the Osmo Action 3 and HERO13 Black have in-body image stabilization?
Osmo Action 3 does not have IBIS, 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 159 g, so the Osmo Action 3 is 14 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 life?
Rated battery life is 640 shots (CIPA) for the Osmo Action 3 and 640 shots for the HERO13 Black, giving the HERO13 Black 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.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.