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Osmo Action 5 Pro

DJI

Osmo Action 5 Pro

Action cam with larger sensor, dual OLED screens, and 4K 120p for creators.

$349

Launch price

Released Sep 2024

vs
Alpha 1 II

Sony

Alpha 1 II

50MP stacked flagship with 30fps RAW, 8K video, and Sony's fastest hybrid performance.

$6,499

Launch price

Released Nov 2024

Alpha 1 II is 2 months newer.

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Wins

4categories

Osmo Action 5 Pro

Sports & ActionTravel

Wins

7categories

Alpha 1 II

Sports & ActionVideo & Hybrid

2 categories tied

Which would you choose?

TL;DR — Key differences

Osmo Action 5 Pro wins 1 categories·Alpha 1 II wins 4 categories
  • BAlpha 1 II has higher AF points / zones (759 vs 0)
  • AOsmo Action 5 Pro has lower Weight (146 g vs 743 g)
  • BAlpha 1 II has higher RAW buffer depth (200 frames vs 60 frames)
  • BAlpha 1 II has higher Burst (electronic) (30 fps vs 15 fps)
  • BAlpha 1 II has higher Card slots (2 vs 1)

Key specs at a glance

Osmo Action 5 ProAlpha 1 II
Resolution40 MP50.1 MP
Sensor1/1.1 inchFull Frame
ISO max51,20032,000
Burst15 fps30 fps
4K120 fps120 fps
IBISNo8.5-stop
Weight146 g743 g
Battery640 shots520 shots

Size and weight, to scale

Osmo Action 5 Pro front view

Osmo Action 5 Pro

71 × 44 × 33 mm

146 g (0.32 lb / 5.15 oz)

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

Credit card

85.6 × 54 mm

for scale

Alpha 1 II front view

Alpha 1 II

136 × 97 × 83 mm

743 g (1.64 lb / 26.21 oz)

Osmo Action 5 Pro is 66mm narrower, 53mm shorter, and 50mm thinner than Alpha 1 II.

Osmo Action 5 Pro is 597 g lighter than Alpha 1 II.

Depth (front-to-back): 33mm Osmo Action 5 Pro · 83mm Alpha 1 II

Back view, to scale

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

Osmo Action 5 Pro back view

Osmo Action 5 Pro

71 × 44 mm

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

Credit card

85.6 × 54 mm

Alpha 1 II

136 × 97 mm

Top view, to scale

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

Osmo Action 5 Pro top view

Osmo Action 5 Pro

71 × 33 mm

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

Credit card

85.6 × 54 mm

Alpha 1 II

136 × 83 mm

Sensor size, to scale

Alpha 1 II

35.9 × 24 mm · Full Frame

862 mm² area

Lens ecosystem

Native lens selection

Osmo Action 5 Pro: mount data unavailable

Alpha 1 II

✓ more lenses

Sony E

350+

native lenses available

80 first-party270 third-party

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

Use caseOsmo Action 5 ProAlpha 1 II
Portrait
3.0Limited
8.5Excellent✓ wins
Sports & Action
10.0Excellent
10.0Excellent
Video & Hybrid
4.5Fair
9.5Excellent✓ wins
Landscape
4.5Fair
9.0Excellent✓ wins
Travel
8.0Excellent✓ wins
6.0Good
Wildlife
5.5Fair
9.5Excellent✓ wins
Vlogging
4.0Fair
5.5Fair✓ wins

Why pick one over the other

Reasons to choose

Osmo Action 5 Pro

  • Stabilization modes

    Adds Horizon Lock, RockSteady 3.0

  • Dimensions (W×H×D mm)

    Adds 70.5, 44.2, 32.8

  • Card types

    Adds microSD, microSDHC, microSDXC

  • Weight

    146 g vs 743 g — lower is better

  • Codecs

    Adds HEVC

  • ISO max (native)

    51,200 vs 32,000 — higher is better

  • Max video bit rate

    200 Mbps vs 150 Mbps — higher is better

  • Battery life (CIPA)

    640 shots vs 520 shots — higher is better

Reasons to choose

Alpha 1 II

  • AF points / zones

    759 vs 0 — higher is better

  • Subject recognition

    Adds Human, Animal, Bird…

  • Dimensions (W×H×D mm)

    Adds 136.1, 96.9, 82.9

  • Card types

    Adds CFexpress Type A, SD UHS-II

  • Codecs

    Adds XAVC HS, XAVC S, XAVC S-I…

  • RAW buffer depth

    200 frames vs 60 frames — higher is better

  • AA filter

    Only Alpha 1 II supports it

  • Eye AF

    Only Alpha 1 II supports it

Both cameras share

  • ISO min (native)Both 100
  • Pre-Capture / Pre-ReleaseBoth support pre-capture / pre-release
  • 4K max frame rateBoth 120 fps
  • Weather sealingBoth support weather sealing
  • TouchscreenBoth support touchscreen
  • Wi-FiBoth support wi-fi

Pros & cons at a glance

Editorially curated highlights and trade-offs.

Osmo Action 5 Pro

Pros

  • Larger sensor vs GoPro
  • Front + rear screens
  • 4K 120p

Cons

  • Accessory ecosystem
  • Fixed lens
  • Still action-cam limits

Alpha 1 II

Pros

  • 50MP stacked sensor
  • 30fps blackout-free burst
  • 8K 30p video
  • Best Sony AF

Cons

  • Very expensive
  • Complex menus
  • Large files

Decided which one is right for you?

Compare live prices for the Osmo Action 5 Pro and Alpha 1 II at major authorized retailers.

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Full specifications

= category winner

Osmo Action 5 Pro
Alpha 1 II
Resolution
40 MP
50.1 MP+25%
Sensor type
CMOS
Full Frame Stacked Exmor RS CMOS
Sensor size
1/1.1 inch
35.9 × 24.0 mm
AA filter
No
Yes
Osmo Action 5 Pro
Alpha 1 II
Aperture
2.8
Field of view
155 °
Osmo Action 5 Pro
Alpha 1 II
Processor
Image processor
BIONZ XR + AI processing unit
Osmo Action 5 Pro
Alpha 1 II
ISO min (native)
100
100
ISO max (native)
51,200+0.7 stops
32,000
ISO max (expanded)
51,200
102,400
Osmo Action 5 Pro
Alpha 1 II
Shutter type
Electronic shutter
Mechanical + Electronic
Max mechanical speed
1/8000 sec
1/8000 sec
Max electronic speed
1/8000 sec
1/32000 sec

Frequently asked

Quick answers generated from verified specs.

Which is better for portraits, Osmo Action 5 Pro or Alpha 1 II?

Alpha 1 II scores 8.5/10 versus 3.0/10 for Osmo Action 5 Pro — 50.1MP — excellent for large prints and crops.

What's the resolution difference between the Osmo Action 5 Pro and Alpha 1 II?

Osmo Action 5 Pro is 40 MP and Alpha 1 II is 50.1 MP, so the Alpha 1 II captures more detail for cropping and large prints.

Do the Osmo Action 5 Pro and Alpha 1 II have in-body image stabilization?

Osmo Action 5 Pro does not have IBIS, while Alpha 1 II has 8.5-stop in-body image stabilization.

Which shoots faster bursts — the Osmo Action 5 Pro or the Alpha 1 II?

Osmo Action 5 Pro reaches 15 fps electronic. Alpha 1 II reaches 30 fps electronic.

What's the weight difference between the Osmo Action 5 Pro and Alpha 1 II?

Osmo Action 5 Pro weighs 146 g and Alpha 1 II weighs 743 g, so the Osmo Action 5 Pro is 597 g lighter.

Do the Osmo Action 5 Pro and Alpha 1 II record 4K video?

Osmo Action 5 Pro: 4K up to 120p. Alpha 1 II: 8K (max), 4K up to 120p.

Are the Osmo Action 5 Pro and Alpha 1 II weather sealed?

Osmo Action 5 Pro: Yes. Alpha 1 II: Yes.

Which has better battery life?

Rated battery life is 640 shots (CIPA) for the Osmo Action 5 Pro and 520 shots for the Alpha 1 II, giving the Osmo Action 5 Pro the edge.

How much does each cost?

Osmo Action 5 Pro launched at $349 and Alpha 1 II at $6,499. The Osmo Action 5 Pro is $6,150 less.

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

Add any camera to get a three-way Osmo Action 5 Pro vs Alpha 1 II vs X comparison.

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

Product images courtesy of DJI and Sony press materials.