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DJI Osmo Action 4
Image: Beach Camera

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 £209 new, from today's stores and the last 90 days

Best priceNew · in stock

£209

at HDEW Cameras

Compare with HERO12 Black
  • 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 £209 in the United Kingdom (HDEW Cameras).

Worth comparing it with the GoPro HERO12 Black, GoPro HERO13 Black and Insta360 Ace Pro.

Where to buy the Osmo Action 4 in United Kingdom

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 Kingdom 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 in the US: about 18% under the UK price before shipping and import tax.

Prices are in each market's own currency. Under each: ≈ in GBP at today's exchange rate. Body only; where a market lists only kits, its cheapest kit is shown and marked.

Lowest new and used price of the Osmo Action 4 in each market, with an approximate conversion into GBP
MarketLowest newLowest used/refurb
United StatesCheapest$229≈ £171—
United Kingdom(you)£209—
Europe——
AustraliaA$359≈ £184—
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.

Osmo Action 4: typical used and lowest new price by dayFrom 4 Nov to 6 Nov, prices between £209 and £209. Latest lowest new £209.4 Nov6 Nov£209£209
Lowest new

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

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Comments are members' own opinions, not CamCompare's. Votes never change the order of prices.

More options

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:

How it stacks up