DJI
Osmo Action 6
Flagship DJI action camera with 1/1.1-inch CMOS sensor, variable f/2.0-f/4.0 lens, 8K 30p video, 4K 120p, 38MP stills, and 20m waterproofing.
$379
Released Nov 2025
Sony
Alpha 7 IV
33MP hybrid all-rounder with 10-bit 4K 60p and AI-powered subject tracking.
$2,499
Released Oct 2021
Osmo Action 6 is 4.1 years newer.
Wins
Osmo Action 6
Wins
Alpha 7 IV
2 categories tied
TL;DR — Key differences
- BAlpha 7 IV has higher AF points / zones (759 vs 0)
- BAlpha 7 IV has higher RAW buffer depth (828 frames vs 120 frames)
- AOsmo Action 6 has lower Weight (149 g vs 658 g)
- BAlpha 7 IV has higher Max video bit rate (600 Mbps vs 200 Mbps)
- AOsmo Action 6 has higher Burst (electronic) (20 fps vs 10 fps)
Key specs at a glance
Size and weight, to scale
Osmo Action 6
73 × 47 × 33 mm
149 g (0.33 lb / 5.26 oz)
Alpha 7 IV
131 × 96 × 80 mm
658 g (1.45 lb / 23.21 oz)
Osmo Action 6 is 59mm narrower, 49mm shorter, and 47mm thinner than Alpha 7 IV.
Osmo Action 6 is 509 g lighter than Alpha 7 IV.
Depth (front-to-back): 33mm Osmo Action 6 · 80mm Alpha 7 IV
Sensor size, to scale
Alpha 7 IV
35.9 × 23.9 mm · Full Frame
858 mm² area
Lens ecosystem
Native lens selection
Osmo Action 6: mount data unavailable
Alpha 7 IV
✓ 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 6
Codecs
Adds HEVC
Dimensions (W×H×D mm)
Adds 72.8, 47.2, 33.1
Card types
Adds microSD
Weight
149 g vs 658 g — lower is better
Burst (electronic)
20 fps vs 10 fps — higher is better
Pre-Capture / Pre-Release
Only Osmo Action 6 supports it
4K max frame rate
120 fps vs 60 fps — higher is better
IBIS effectiveness
7 stops vs 5.5 stops — higher is better
Reasons to choose
Alpha 7 IV
AF points / zones
759 vs 0 — higher is better
Subject recognition
Adds Human, Animal, Bird…
Codecs
Adds XAVC HS, XAVC S, XAVC S-I…
Dimensions (W×H×D mm)
Adds 131.3, 96.4, 79.8
Card types
Adds CFexpress Type A, SD UHS-II
RAW buffer depth
828 frames vs 120 frames — higher is better
Max video bit rate
600 Mbps vs 200 Mbps — higher is better
AA filter
Only Alpha 7 IV supports it
Both cameras share
- ✓ISO min (native) — Both 100
- ✓ISO max (native) — Both 51,200
- ✓Weather sealing — Both support weather sealing
- ✓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 Action 6
Pros
- ✓8K 30p video
- ✓1/1.1-inch sensor
- ✓Variable f/2.0-f/4.0 aperture
- ✓20m waterproof without case
Cons
- –8K has mode limitations
- –Fixed ultra-wide lens
- –Small sensor vs compact cameras
Alpha 7 IV
Pros
- ✓33MP — more detail for cropping and print
- ✓10-bit 4K 60p (Super35 crop) / 4K 30p full-frame
- ✓Full-size HDMI port
- ✓759 phase-detect AF points
Cons
- –4K 60p requires Super35 crop
- –10fps burst lags behind R6 II at 40fps
- –Complex menu system
Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for portraits, Osmo Action 6 or Alpha 7 IV?
Alpha 7 IV scores 9.0/10 versus 2.5/10 for Osmo Action 6 — 33MP — ample resolution for portraits.
What's the resolution difference between the Osmo Action 6 and Alpha 7 IV?
Osmo Action 6 is 38 MP and Alpha 7 IV is 33 MP, so the Osmo Action 6 captures more detail for cropping and large prints.
Do the Osmo Action 6 and Alpha 7 IV have in-body image stabilization?
Osmo Action 6 does not have IBIS, while alpha 7 IV has 5.5-stop in-body image stabilization.
Which shoots faster bursts — the Osmo Action 6 or the Alpha 7 IV?
Osmo Action 6 reaches 20 fps electronic. Alpha 7 IV reaches 10 fps electronic.
What's the weight difference between the Osmo Action 6 and Alpha 7 IV?
Osmo Action 6 weighs 149 g and Alpha 7 IV weighs 658 g, so the Osmo Action 6 is 509 g lighter.
Do the Osmo Action 6 and Alpha 7 IV record 4K video?
Osmo Action 6: 8K (max), 4K up to 120p. Alpha 7 IV: 4K up to 60p.
Are the Osmo Action 6 and Alpha 7 IV weather sealed?
Osmo Action 6: Yes. Alpha 7 IV: Yes.
Which has better battery life?
Rated battery life is 640 shots (CIPA) for the Osmo Action 6 and 580 shots for the Alpha 7 IV, giving the Osmo Action 6 the edge.
How much does each cost?
Osmo Action 6 launched at $379 and Alpha 7 IV at $2,499. The Osmo Action 6 is $2,120 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of DJI and Sony press materials.