Osmo Action 4 Standard Combo (Refurbished Unit)
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1/1.3-inch Image Sensor
The equivalent pixel size of 2.4 μm and an f/2.8 aperture improves performance of high dynamic range scenarios and low-light environments.
10-bit & D-Log M Peformance
The 10-bit color depth [1] can record over a billion colors, giving you flexibility in post. Achieve a cinematic look when editing D-Log M mode.
Packed with Peformance
The body is waterproof up to 18 meters [2] caseless and can record for 150 minutes, [3] even at -20° C (-4° F). Fast charging is supported.
4K/120fps & 155º Ultra-Wide FOV
The combination of 4K UHD image quality and a 120fps [4] high frame rate captures rich details and creates an impressive sense of depth.
Quick Release & Native Vertical
The magnetic quick-release design with strong impact resistance and a secure connection for switching means changing things up is a snap.
360° HorizonSteady
This smart stabilization feature counteracts camera shake in all directions. It corrects horizontal tilt at any angle during bumps and rotations.
Extensive Accessories
A range of practical accessories helps you tackle various sports shooting scenarios, such as cycling, hiking, diving, surfing, and skiing.
In the Box
Osmo Action 4
× 1
Osmo Action Extreme Battery
× 1
Osmo Action Horizontal-Vertical Protective Frame
× 1
Osmo Action Quick-Release Adapter Mount
× 1
Osmo Action Curved Adhesive Base
× 1
Osmo Locking Screw
× 1
Type-C to Type-C PD Cable
× 1
Osmo Action Lens Hood
× 1
Osmo Action Anti-Slip Pad
× 1
DJI Logo Sticker
× 1
Let’s Answer Your Questions
What improvements does Osmo Action 4 have in terms of image quality? What are its advantages in low-light recording?
Osmo Action 4 has a larger 1/1.3-inch image sensor than its predecessor. With a single pixel equivalent size of 2.4μm, Osmo Action 4 delivers footage with minimal noise in both moving and low-light scenes.
D-Log M is designed for professional videography. It enhances the dynamic range in high-contrast or multi-colored environments (such as blooming gardens). It enables greater flexibility in color grading during post-editing, capturing the scene's essence. 10-bit color depth enables smoother color transition with no discrete step changes.
The 155° ultra wide-angle also captures an expansive view of your surroundings during movement, creating an intense visual impact and immersing you in vast landscapes when recording scenery.
What is D-Log M of Osmo Action 4's color mode?
It is designed to capture a wide dynamic range from the sensor, and colors are distributed evenly so the bright and dark parts of the video have greater fidelity and clarity. It is not a LUT, but a lower-contrast video with a flat color profile, which is great for expanding post-processing options.
What resolution settings does Osmo Action 4 support?
Osmo Action 4 supports the following resolution settings:
4K (4:3): 3840×2880@24/25/30/48/50/60fps
4K (16:9): 3840×2160@100/120fps
4K (16:9): 3840×2160@24/25/30/48/50/60fps
2.7K (4:3): 2688×2016@24/25/30/48/50/60fps
2.7K (16:9): 2688×1512@100/120fps
2.7K (16:9): 2688×1512@24/25/30/48/50/60fps
1080p (16:9): 1920×1080@100/120/200/240fps
1080p (16:9): 1920×1080@24/25/30/48/50/60fps
What video and stabilization specifications does auto low-light image enhancement support?
When Low-Light Image Enhancement is set to Auto, it supports all stabilization options for 1080p@24/25/30fps, 2.7K (16:9 or 4:3) @24/25/30fps, and RockSteady for 4K (16:9) @24/25/30fps.
What additional accessories are included in the Adventure Combo compared to the Standard Combo? Is it worth buying?
Compared to the Standard Combo, the Osmo Action 4 Adventure Combo comes with an additional two Extreme Batteries and a 1.5m Extension Rod, providing you with ample power for long-duration shoots and allowing for multi-angle selfies during skiing or other scenarios.
Is Osmo Acion 4 compatible with accessories of the last-generation product?
Osmo Action 4 is compatible with most accessories of its predecessor, such as:
Osmo Action Extreme Battery
Osmo Action 1.5m Extension Rod Kit
Osmo Action Biking Accessory Kit
Osmo Action Diving Accessory Kit
Osmo Action Multifunctional Battery Case
Osmo Action 60m Waterproof Case
Osmo Action Adhesive Base Kit
Osmo Magnetic Ball-Joint Adapter Mount
Osmo Action Chest Strap Mount
Osmo Action Suction Cup Mount
Osmo Action Helmet Chin Mount
Osmo Action Handlebar Mount
Osmo Action Surfing Tether
DJI Floating Handle
Osmo Backpack Strap Mount
Osmo Action Hanging Neck Mount
Osmo Action ND Filters Set
Osmo Action Surfing Tether Kit
Osmo Action Bike Seat Rail Mount
Osmo Action Curved Adhesive Base Kit
Osmo Action Mini Extension Rod
Osmo Action 360° Wrist Strap
Osmo Action Mini Handlebar Mount
Check the Osmo Action 4 accessory compatibility page for more details. Additionally, there are new Osmo Action 4 accessories, including the Osmo Action Bite Mount, Osmo Action GPS Bluetooth Remote Controller, and the Osmo Action Road Cycling Accessory Kit.
Can I mount third-party action camera accessories to Osmo Action 4?
Yes. You can mount third-party action camera accessories with the quick-release adapter mount.
What is RockSteady 3.0?
Osmo Action 4 uses RockSteady 3.0 technology to stabilize footage. This Electronic Image Stabilization (EIS) technology is realized by increasing the shutter speed, analyzing the images captured by the CMOS sensor, and compensating by cutting off the edges of these images. In this way, multiple frames are overlaid and finally combined into a single frame that is sharp, clear, and accurately exposed.
What is HorizonSteady?
HorizonSteady uses DJI's latest stabilization algorithm to correct shakes for any horizontal rotation (360°) and lock onto a leveled horizon in every frame, regardless of how the camera is mounted or worn. It allows you to capture smooth and stable footage whether you are cycling on bumpy roads or go-karting around a track.
Does Osmo Action 4 support fast charging?
Yes. You can use the DJI 30W USB-C Charger* to fast charge Osmo Action 4.
* The DJI 30W USB-C Charger is sold separately.
What microSD cards does Osmo Action 4 support?
Recommended models:
SanDisk Extreme Pro 32GB V30 A2 UHS-I Speed Grade 3
Kingston Canvas Go!Plus 64GB UHS-I Speed Grade 3
Kingston Canvas Go!Plus 128GB UHS-I Speed Grade 3
Kingston Canvas React Plus 64GB UHS-II Speed Grade 3
Kingston Canvas React Plus 128GB UHS-II Speed Grade 3
Kingston Canvas React Plus 256GB UHS-II Speed Grade 3
Lexar Pro 512GB SDXC UHS-I V30 R160/W120 (1066x)
Still have questions? Get help from a DJI expert.
1. 10-bit color depth is available for videos recorded in HEVC codec and the D-Log M color mode.
2. Before use, close the battery cover, close the USB-C port cover, and tighten the Glass Lens Cover. We recommend using the Waterproof Case for long-term underwater shooting or in environments with high water pressure. Osmo Action 4 and its Waterproof Case have an IP68 waterproof rating. Do not use the camera in hot springs or extreme underwater environments or let it come into contact with corrosive or unknown liquids.
3. In -20° C (-4° F) laboratory environment and at 1080p/24fps (16:9), with RockSteady on, Wi-Fi off, and the screen off. This data is for reference only.
4. The 120fps high frame rate is available when recording in 1080p, 2.7K 16:9, and 4K 16:9 video specifications.