Cameraegg Compare logoCameraegg

DJI

Osmo Action 4

1/1.3-inch sensor action camera with 10-bit D-Log M and strong stabilization.

$299

Launch price

Released Aug 2023

vs
X2D II 100C

Hasselblad

X2D II 100C

Second-gen 100MP medium format flagship with faster AF, improved IBIS, and Hasselblad Natural Colour.

$8,499

Launch price

Released Sep 2025

X2D II 100C is 2.1 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

5categories

Osmo Action 4

Sports & ActionTravel

Wins

8categories

X2D II 100C

Sports & ActionLandscape

1 categories tied

Which would you choose?

TL;DR — Key differences

Osmo Action 4 wins 1 categories·X2D II 100C wins 4 categories
  • BX2D II 100C has higher AF points / zones (425 vs 0)
  • BX2D II 100C has higher Resolution (100 MP vs 10 MP)
  • AOsmo Action 4 has lower Weight (145 g vs 840 g)
  • BX2D II 100C has higher RAW buffer depth (200 frames vs 60 frames)
  • BX2D II 100C has lower ISO min (native) (50 vs 100)

Key specs at a glance

Osmo Action 4X2D II 100C
Resolution10 MP100 MP
Sensor1/1.3-inch43.8 x 32.9 mm
ISO max12,80025,600
Burst15 fps30 fps
4K120 fps60 fps
IBISNo7-stop
Weight145 g840 g
Battery640 shots466 shots

Size and weight, to scale

Osmo Action 4

71 × 44 × 33 mm

145 g (0.32 lb / 5.11 oz)

Credit card shown to scale as a size reference (ISO 7810, 85.6 × 54 mm)

Credit card

85.6 × 54 mm

for scale

X2D II 100C front view

X2D II 100C

149 × 106 × 75 mm

840 g (1.85 lb / 29.63 oz)

Osmo Action 4 is 78mm narrower, 62mm shorter, and 42mm thinner than X2D II 100C.

Osmo Action 4 is 695 g lighter than X2D II 100C.

Depth (front-to-back): 33mm Osmo Action 4 · 75mm X2D II 100C

Back view, to scale

Width × Height — same proportions as the front of the body.

Osmo Action 4

71 × 44 mm

Credit card shown to scale as a size reference (ISO 7810, 85.6 × 54 mm)

Credit card

85.6 × 54 mm

X2D II 100C back view

X2D II 100C

149 × 106 mm

Top view, to scale

Width × Depth (front-to-back) — see which body is chunkier on the table.

Osmo Action 4

71 × 33 mm

Credit card shown to scale as a size reference (ISO 7810, 85.6 × 54 mm)

Credit card

85.6 × 54 mm

X2D II 100C top view

X2D II 100C

149 × 75 mm

Sensor size, to scale

X2D II 100C

43.8 × 32.9 mm · Full Frame

1441 mm² area

Use-case scoring

Which one for what?

Algorithmic scores from verified specs · 10 = best in class

Use caseOsmo Action 4X2D II 100C
Portrait
1.0Limited
6.0Good✓ wins
Sports & Action
8.5Excellent
8.5Excellent
Video & Hybrid
4.5Fair
6.0Good✓ wins
Landscape
1.5Limited
7.0Good✓ wins
Travel
7.0Good✓ wins
5.0Fair
Wildlife
4.5Fair
5.5Fair✓ wins
Vlogging
4.0Fair
5.5Fair✓ wins

Why pick one over the other

Reasons to choose

Osmo Action 4

  • 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 840 g — lower is better

  • Burst (mechanical)

    6 fps vs 3 fps — higher is better

  • 4K max frame rate

    120 fps vs 60 fps — higher is better

  • Codecs

    Adds HEVC

  • Battery life (CIPA)

    640 shots vs 466 shots — higher is better

Reasons to choose

X2D II 100C

  • AF points / zones

    425 vs 0 — higher is better

  • Subject recognition

    Adds Animals, People, Vehicles

  • Dimensions (W×H×D mm)

    Adds 148.5, 106, 75

  • Card types

    Adds CFexpress Type B

  • Resolution

    100 MP vs 10 MP — higher is better

  • RAW buffer depth

    200 frames vs 60 frames — higher is better

  • ISO min (native)

    50 vs 100 — lower is better

  • ISO max (native)

    25,600 vs 12,800 — higher is better

Both cameras share

  • Pre-Capture / Pre-ReleaseBoth support pre-capture / pre-release
  • Weather sealingBoth support weather sealing
  • Card slotsBoth 1
  • TouchscreenBoth support touchscreen
  • Wi-FiBoth support wi-fi
  • BluetoothBoth support bluetooth

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

X2D II 100C

Pros

  • 100MP medium format
  • 7-stop IBIS
  • Faster AF than X2D
  • Stunning color science

Cons

  • Very expensive
  • Large files
  • Not for action

Decided which one is right for you?

Compare live prices for the Osmo Action 4 and X2D II 100C at major authorized retailers.

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

Osmo Action 4
X2D II 100C
Resolution
10 MP
100 MP10× more
Sensor type
1/1.3-inch CMOS
BSI CMOS
Sensor size
1/1.3-inch
43.8 x 32.9 mm
AA filter
No
Osmo Action 4
X2D II 100C
Aperture
f/2.8
Field of view
155 °
Osmo Action 4
X2D II 100C
Processor
Image processor
Image processor
Osmo Action 4
X2D II 100C
ISO min (native)
100
50−50 less
ISO max (native)
12,800
25,600+1 stop
ISO max (expanded)
12,800
102,400
Osmo Action 4
X2D II 100C
Shutter type
Electronic shutter
Leaf Shutter and Electronic Rolling Shutter
Max mechanical speed
1/8000 sec
1/4000
Max electronic speed
1/8000 sec
1/6000

Frequently asked

Quick answers generated from verified specs.

Which is better for landscape, Osmo Action 4 or X2D II 100C?

X2D II 100C scores 7.0/10 versus 1.5/10 for Osmo Action 4 — 100MP — massive detail for large prints.

What's the resolution difference between the Osmo Action 4 and X2D II 100C?

Osmo Action 4 is 10 MP and X2D II 100C is 100 MP, so the X2D II 100C captures more detail for cropping and large prints.

Do the Osmo Action 4 and X2D II 100C have in-body image stabilization?

Osmo Action 4 uses Electronic image stabilization (electronic), while X2D II 100C has 7-stop in-body image stabilization.

Which shoots faster bursts — the Osmo Action 4 or the X2D II 100C?

Osmo Action 4 reaches 15 fps electronic. X2D II 100C reaches 30 fps electronic.

What's the weight difference between the Osmo Action 4 and X2D II 100C?

Osmo Action 4 weighs 145 g and X2D II 100C weighs 840 g, so the Osmo Action 4 is 695 g lighter.

Do the Osmo Action 4 and X2D II 100C record 4K video?

Osmo Action 4: 4K up to 120p. X2D II 100C: 4K up to 60p.

Are the Osmo Action 4 and X2D II 100C weather sealed?

Osmo Action 4: Yes. X2D II 100C: Yes.

Which has better battery life?

Rated battery life is 640 shots (CIPA) for the Osmo Action 4 and 466 shots for the X2D II 100C, giving the Osmo Action 4 the edge.

How much does each cost?

Osmo Action 4 launched at $299 and X2D II 100C at $8,499. The Osmo Action 4 is $8,200 less.

Can't decide between two? Compare a third camera.

Add any camera to get a three-way Osmo Action 4 vs X2D II 100C vs X comparison.

Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed June 2026.

Product images courtesy of DJI and Hasselblad press materials.