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
Sony
Alpha 7 V
33MP partially stacked Exmor RS hybrid with BIONZ XR2 AI, 30fps blackout-free burst, 7.5-stop IBIS, and 4K 60p oversampled from 7K.
$2,899
Launch priceReleased Dec 2025
Alpha 7 V is 3.3 years newer.
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Wins
Osmo Action 3
Wins
Alpha 7 V
2 categories tied
TL;DR — Key differences
- BAlpha 7 V has higher AF points / zones (759 vs 0)
- AOsmo Action 3 has lower Weight (145 g vs 695 g)
- BAlpha 7 V has higher ISO max (native) (51,200 vs 12,800)
- BAlpha 7 V has higher Max video bit rate (600 Mbps vs 200 Mbps)
- BAlpha 7 V has higher Resolution (33 MP vs 12 MP)
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)
Credit card
85.6 × 54 mm
for scale
Alpha 7 V
130 × 96 × 82 mm
695 g (1.53 lb / 24.52 oz)
Osmo Action 3 is 60mm narrower, 52mm shorter, and 50mm thinner than Alpha 7 V.
Osmo Action 3 is 550 g lighter than Alpha 7 V.
Depth (front-to-back): 33mm Osmo Action 3 · 82mm Alpha 7 V
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
Alpha 7 V
130 × 96 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
Alpha 7 V
130 × 82 mm
Sensor size, to scale
Alpha 7 V
35.9 × 23.9 mm · Full Frame
858 mm² area
Lens ecosystem
Native lens selection
Osmo Action 3: mount data unavailable
Alpha 7 V
✓ more lensesSony E
350+
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 Action 3
Dimensions (W×H×D mm)
Adds 70.5, 44.2, 32.8
Card types
Adds microSD
Weight
145 g vs 695 g — lower is better
Codecs
Adds HEVC
Battery life (CIPA)
640 shots vs 630 shots — higher is better
Reasons to choose
Alpha 7 V
AF points / zones
759 vs 0 — higher is better
Subject recognition
Adds Human, Animal, Bird…
Dimensions (W×H×D mm)
Adds 130.3, 96.4, 82.4
Card types
Adds CFexpress Type A / SD UHS-II, SD UHS-II
Codecs
Adds XAVC HS, XAVC S, XAVC S-I…
ISO max (native)
51,200 vs 12,800 — higher is better
Max video bit rate
600 Mbps vs 200 Mbps — higher is better
Resolution
33 MP vs 12 MP — 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
- ✓Weather sealing — Both support weather sealing
- ✓Touchscreen — Both support touchscreen
- ✓Wi-Fi — Both support wi-fi
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
Alpha 7 V
Pros
- ✓33MP partially stacked sensor — ~4.5× faster readout than α7 IV
- ✓Blackout-free 30 fps with full AF/AE (electronic shutter)
- ✓7.5-stop central / 6.5-stop peripheral IBIS (CIPA 2024)
- ✓759-point phase-detect AF down to EV -4 with AI subject recognition
- ✓7K oversampled 4K 60p (full-frame, no pixel binning) + 4K 120p
- ✓Pre-Capture and dual USB-C (10 Gbps + USB 2.0)
- ✓Up to 16 stops dynamic range
Cons
- –Premium price vs α7 IV
- –4K 120p typically requires APS-C / Super 35 crop
- –Heavier than α7 IV (695 g vs 659 g with battery)
- –Complex menu and feature set
Decided which one is right for you?
Compare live prices for the Osmo Action 3 and Alpha 7 V at major authorized retailers.
DJI Osmo Action 3
Sony Alpha 7 V
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for portraits, Osmo Action 3 or Alpha 7 V?
Alpha 7 V scores 8.0/10 versus 1.0/10 for Osmo Action 3 — 33MP — ample resolution for portraits.
What's the resolution difference between the Osmo Action 3 and Alpha 7 V?
Osmo Action 3 is 12 MP and Alpha 7 V is 33 MP, so the Alpha 7 V captures more detail for cropping and large prints.
Do the Osmo Action 3 and Alpha 7 V have in-body image stabilization?
Osmo Action 3 does not have IBIS, while alpha 7 V has 7.5-stop in-body image stabilization.
Which shoots faster bursts — the Osmo Action 3 or the Alpha 7 V?
Osmo Action 3 reaches 15 fps electronic. Alpha 7 V reaches 30 fps electronic.
What's the weight difference between the Osmo Action 3 and Alpha 7 V?
Osmo Action 3 weighs 145 g and Alpha 7 V weighs 695 g, so the Osmo Action 3 is 550 g lighter.
Do the Osmo Action 3 and Alpha 7 V record 4K video?
Osmo Action 3: 4K up to 120p. Alpha 7 V: 4K up to 120p.
Are the Osmo Action 3 and Alpha 7 V weather sealed?
Osmo Action 3: Yes. Alpha 7 V: Yes.
Which has better battery life?
Rated battery life is 640 shots (CIPA) for the Osmo Action 3 and 630 shots for the Alpha 7 V, giving the Osmo Action 3 the edge.
How much does each cost?
Osmo Action 3 launched at $329 and Alpha 7 V at $2,899. The Osmo Action 3 is $2,570 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed June 2026.
Product images courtesy of DJI and Sony press materials.