DJI Osmo Action 4
Action camera · Fixed lens · Announced August 2023
Official page on dji.com (opens the maker's site in a new tab)
Typically $229 new, from today's stores and the last 90 days
Best priceNew · in stock
$229
at Focus Camera3% above its 30-day average
- Launch RRP
- $399Best new is 43% under
- 1/1.3" sensor: 10 MP, CMOS
- Built-in lens: f/2.8
- In-body stabilisation: None
- Top video mode: 4K 120p, 10-bit internal
- Viewfinder: None
- Weight with battery: 145 g
- Waterproof: 18 m, Weather sealed
Osmo Action 4 overview
The DJI Osmo Action 4 is a 10 MP 1/1.3-inch action camera with a built-in lens, announced by DJI in August 2023. It has been followed by the DJI Osmo Action 5 Pro; both are still sold.
Going by its spec sheet, it suits travel and everyday carry, video, bad weather, and water and adventure. It is a weaker pick for paid jobs that need a backup card and eye-level shooting in bright sun.
New, it sells for $229 to $289.99 at the 3 stores we track in the United States that have it in stock. It launched at $399.
Worth comparing it with the GoPro HERO12 Black, GoPro HERO13 Black and Insta360 Ace Pro.
Where to buy the Osmo Action 4 in United States
eBay.comAd
New and used, from single sellers: check condition and returns
Search eBay at eBay.comPaid link
Amazon.comAd
Also check on Amazon: new, sold by Amazon and its sellers, the price shows there
Check Amazon at Amazon.comPaid link
Focus CameraBest price
NewIn stock
Authorized dealer
$229
34% off
$349Precision Camera
NewIn stock
Authorized dealer
$239
Beach Camera
NewIn stock
Authorized dealer
$289.99
19% off
$359.99Focus Camera
NewIn stock
Authorized dealer
sports-photo-promotion-videography-2-25-26
$308.99
22% off
$399Focus Camera
NewIn stock
Authorized dealer
$349.99
Beach Camera
Open boxOut of stock
Authorized dealer
$179.95
30% off
$259.94
Beach Camera
Open boxOut of stock
Authorized dealer
$290.95
19% off
$359.94
Beach Camera
Open boxOut of stock
Authorized dealer
$290.95
41% off
$499
Beach Camera
Open boxOut of stock
Authorized dealer
Promo Waterproof Action Cameras
$329
19% off
$408.99
Beach Camera
Open boxOut of stock
Authorized dealer
Promo Waterproof Action Cameras
$329
34% off
$499
More used DJI Osmo Action 4 on eBayPaid linkSingle sellers, auctions included: check the listing's condition and returns.
Sorted by price, body only first, cheapest in stock first. Kits are listed apart and never counted as the body price. Some links earn us a commission. The Amazon and eBay rows above are ads; the store rows keep their price order.
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Reviews
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Expert reviews
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Member stories · Osmo Action 4
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Members' own words, not CamCompare's. All member stories
Things to know
- 10 MP 1/1.3" CMOS sensor; no in-body stabilisation, so steadiness comes from the lens.
- Video 4K up to 120p, 10-bit internal; no mic input.
- 2.3-inch fixed touchscreen; no viewfinder.
- USB-C port.
- 145 g with battery and card; 71 × 44 × 33 mm; weather sealed.
- One card slot (microSD).
- Replaced by the Osmo Action 5 Pro (2024); both are still sold.
- Same line: Osmo Action (2019).
- No used body-only listings at the stores we track in United States today: check eBay and the Used filter.
Good for
- Travel and everyday carry (145 g)
- Video (4K 120p, 10-bit internal)
- Bad weather (weather sealed)
- Water and adventure (waterproof to 18 m)
Not the best for
- Paid jobs that need a backup card (one card slot)
- Eye-level shooting in bright sun (no viewfinder)
From the Osmo Action 4's published specs, not from a review.
Price history
Price around the world
Cheapest right here in the US: about 7% under the price in Australia, the next cheapest.
Prices are in each market's own currency. Under each: ≈ in USD at today's exchange rate. Body only; where a market lists only kits, its cheapest kit is shown and marked.
| Market | Lowest new | Lowest used/refurb |
|---|---|---|
| United States(you)Cheapest | $229 | — |
| United Kingdom | £209≈ $280 | — |
| Europe | — | — |
| Australia | A$359≈ $247 | — |
| Singapore | — | — |
Each price is in its own currency, as the store charges it. The ≈ figures are approximate, at today's exchange rate (ECB reference rates, 2026-11-06), rounded, and leave out shipping, import duty, GST/VAT and card fees. A camera bought abroad may not carry a local warranty: see grey-market cameras before you buy.
Used: what it should be worth
No used Osmo Action 4 listings at the stores we track yet. A "should be worth" value appears after a week of used prices.
From used and refurbished asking prices at the stores we track, checked every few hours. Confirmed eBay sale prices will be added once eBay grants us access to its sold-listings data.
Videos
Reviews, comparisons and sample footage of the Osmo Action 4, on YouTube.
Discussions & forums
What owners say about the Osmo Action 4 elsewhere, and here.
On CamCompare
Ask on the Gear advice board →Loading comments…
Comments are members' own opinions, not CamCompare's. Votes never change the order of prices.
More options
Newer model9% under RRP
Compare side by side →Same line
Compare side by side →Rival
Compare side by side →Rival
Compare side by side →Rival8% under RRP
Compare side by side →Rival30% under RRP
Compare side by side →
Alternatives to the Osmo Action 4
More DJI cameras
- Mini 4 Pro · 2023
- Air 3 · 2023
- Flip · 2025
- Osmo Pocket 3 · 2023
- Mavic 3 Pro · 2023
- Air 3S · 2024
- Neo · 2024
- Mini 4K · 2024
Osmo Action 4 specifications
Overview
- Type
- Action camera
- Announced
- Aug 2023
- US launch price
- $399
- Lens
- f/2.8
Sensor & image
- Sensor size
- 1/1.3"
- Sensor type
- CMOS
- Resolution
- 10 MP
- Native ISO
- 100–12,800
- In-body stabilisation
- No
Speed & autofocus
- Burst (mechanical)
- —
- Burst (electronic)
- —
- Fastest shutter (mech.)
- —
- Fastest shutter (elec.)
- 1/8,000s
- AF points
- —
- Subject detection
- None
Video
- Max resolution
- 4K
- 4K frame rate
- 120p
- 10-bit internal
- Yes
- Internal raw video
- No
- Mic input
- No
- Headphone jack
- No
Viewfinder & screen
- Viewfinder
- None
- Rear screen
- 2.25"
- Screen articulation
- Fixed
- Touchscreen
- Yes
Body & battery
- Weight (with battery)
- 145 g
- Dimensions (W×H×D)
- 70.5 × 44.2 × 32.8 mm
- Weather sealed
- Yes
- Battery (CIPA shots)
- —
- Waterproof
- 18 m
- Card slots
- 1 · microSD
- USB-C
- Yes
- Built-in flash
- No
- Wi-Fi / Bluetooth
- Wi-Fi + Bluetooth
Low light & noise
2.6 µm pixels
10 MP on a 1/1.3" sensor, ISO up to 12,800
Bigger pixels gather more light each, so they tend to show less noise at high ISO, but sensor design matters as much. For real noise at ISO 6400, these sites measure it:
- Photons to Photos: dynamic range vs ISO ↗Photographic dynamic range measured at every ISO, bodies on one chart
- Photons to Photos: noise vs ISO ↗Read noise at every ISO from lab tests: lower is cleaner in the shadows
- DPReview studio scene ↗The same scene shot by each camera at the ISO you pick, side by side
- DPReview reviews ↗Full reviews with high-ISO samples
- Low-light video tests ↗Real-world high-ISO footage on YouTube