DJI
Osmo Pocket 3
Pocket gimbal camera with 1-inch sensor, 4K 120p, and rotating 2-inch OLED screen.
$519
Launch priceReleased Oct 2023
Pentax
K-3 Mark III
APS-C DSLR flagship with optical viewfinder and weather sealing.
$1,999
Launch priceReleased Apr 2021
Osmo Pocket 3 is 2.5 years newer.
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Wins
Osmo Pocket 3
Wins
K-3 Mark III
1 categories tied
Which would you choose?
TL;DR — Key differences
- BK-3 Mark III has higher ISO max (native) (25,600 vs 6,400)
- AOsmo Pocket 3 has lower Weight (179 g vs 520 g)
- BK-3 Mark III has higher Resolution (25.7 MP vs 9.4 MP)
- AOsmo Pocket 3 has lower ISO min (native) (50 vs 100)
- BK-3 Mark III has higher Card slots (2 vs 1)
Key specs at a glance
Size and weight, to scale
📸 Snap this size diff to share
Osmo Pocket 3
34 × 140 × 42 mm
179 g (0.39 lb / 6.31 oz)
Credit card
85.6 × 54 mm
for scale
K-3 Mark III
138 × 98 × 88 mm
520 g (1.15 lb / 18.34 oz)
Osmo Pocket 3 is 105mm narrower and 46mm thinner than K-3 Mark III but it is also 42mm taller.
Osmo Pocket 3 is 341 g lighter than K-3 Mark III.
Depth (front-to-back): 42mm Osmo Pocket 3 · 88mm K-3 Mark III
Back view, to scale
Width × Height — same proportions as the front of the body.
Osmo Pocket 3
34 × 140 mm
Credit card
85.6 × 54 mm
K-3 Mark III
138 × 98 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
Osmo Pocket 3
34 × 42 mm
Credit card
85.6 × 54 mm
K-3 Mark III
138 × 88 mm
Sensor size, to scale
Osmo Pocket 3
13.2 × 8.8 mm · 1-inch
116 mm² area
K-3 Mark III
23.5 × 15.6 mm · APS-C
367 mm² area
3.2× larger sensor area = shallower depth of field and better low-light performance.
Lens ecosystem
Native lens selection
Osmo Pocket 3: mount data unavailable
K-3 Mark III
✓ more lensesPentax K
70+
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 Pocket 3
Dimensions (W×H×D mm)
Adds 33.5, 139.7, 42.2
Card types
Adds microSD
Weight
179 g vs 520 g — lower is better
ISO min (native)
50 vs 100 — lower is better
Codecs
Adds HEVC
Reasons to choose
K-3 Mark III
Subject recognition
Adds Human, Animal, Bird…
Dimensions (W×H×D mm)
Adds 138, 98, 88
Card types
Adds SD UHS-II
ISO max (native)
25,600 vs 6,400 — higher is better
Resolution
25.7 MP vs 9.4 MP — higher is better
Eye AF
Only K-3 Mark III supports it
Animal / bird AF
Only K-3 Mark III supports it
Pre-Capture / Pre-Release
Only K-3 Mark III supports it
Both cameras share
- ✓4K max frame rate — Both 60 fps
- ✓Touchscreen — Both support touchscreen
- ✓Wi-Fi — Both support wi-fi
- ✓Bluetooth — Both support bluetooth
Pros & cons at a glance
Editorially curated highlights and trade-offs.
Osmo Pocket 3
Pros
- ✓Built-in 3-axis gimbal
- ✓1-inch sensor
- ✓Creator-friendly
Cons
- –Fixed lens
- –Small sensor vs ILC
- –Accessory dependent
K-3 Mark III
Pros
- ✓Optical viewfinder
- ✓Weather sealed
- ✓IBIS in DSLR
Cons
- –DSLR system declining
- –APS-C
- –Limited video
Decided which one is right for you?
Compare live prices for the Osmo Pocket 3 and K-3 Mark III at major authorized retailers.
DJI Osmo Pocket 3
Pentax K-3 Mark III
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for wildlife, Osmo Pocket 3 or K-3 Mark III?
K-3 Mark III scores 10.0/10 versus 0.0/10 for Osmo Pocket 3 — 20fps burst captures fleeting moments.
What's the resolution difference between the Osmo Pocket 3 and K-3 Mark III?
Osmo Pocket 3 is 9.4 MP and K-3 Mark III is 25.7 MP, so the K-3 Mark III captures more detail for cropping and large prints.
Do the Osmo Pocket 3 and K-3 Mark III have in-body image stabilization?
Osmo Pocket 3 uses a 3-axis mechanical gimbal, while K-3 Mark III has 7-stop in-body image stabilization.
What's the weight difference between the Osmo Pocket 3 and K-3 Mark III?
Osmo Pocket 3 weighs 179 g and K-3 Mark III weighs 520 g, so the Osmo Pocket 3 is 341 g lighter.
Do the Osmo Pocket 3 and K-3 Mark III record 4K video?
Osmo Pocket 3: 4K up to 60p. K-3 Mark III: 4K up to 60p.
Are the Osmo Pocket 3 and K-3 Mark III weather sealed?
Osmo Pocket 3: No. K-3 Mark III: Yes.
How much does each cost?
Osmo Pocket 3 launched at $519 and K-3 Mark III at $1,999. The Osmo Pocket 3 is $1,480 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way Osmo Pocket 3 vs K-3 Mark III vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed July 2026.
Product images courtesy of DJI and Pentax press materials.