Dji Osmo Action 4 User Manual v1.2

User Manual

2023.09v1.2

This document is copyrighted by DJI with all rights reserved. Unless otherwise authorized by DJI, you are not eligible to use or allow others to use the document or any part of the document by reproducing, transferring, or selling the document. Users should only refer to this document and the content thereof as instructions to operate DJI products. The document should not be used for other purposes.

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Revision Log

Version Date Revisions

v1.2 2023.09 Added Pre-Rec and Highlight function.

DJI Osmo Action 4 User Manual

Using this Manual

Legends

Important Hints and Tips

Read Before Use

Read the following documents before using DJI™ OSMO™ Action 4.

1. Osmo Action 4 Safety Guidelines

2. Osmo Action 4 Quick Start Guide

3. Osmo Action 4 User Manual

It is recommended to watch all tutorial videos and read the safety guidelines before using for

the rst time. Make sure to review the Quick Start Guide before using for the rst time and refer

to this User Manual for more information.

Download DJI Mimo App and Watch the Tutorial Video

Scan the QR code to download the DJI Mimo App and watch the tutorial videos.

DJI Mimo App

DJI Store App

https://s.dji.com/guide60

Android 8.0 or aboveiOS 12.0 or above

Using this Manual 3

Legends 3

Read Before Use 3

Download DJI Mimo App and Watch the Tutorial Video 3

Contents 4

Product Profile 5

Overview 5

Accessories 6

Using for the First Time 9

Attaching the Battery 9

Inserting the microSD Card 9

Activating Osmo Action 4 10

Charging Osmo Action 4 10

Operation 11

Button Features 11

Operating the Touchscreen 11

Status LED Descriptions 20

Storing Photos and Videos 20

Transferring Files 21

Webcam Mode 22

Microphone Connection 22

DJI Mimo App 23

Download the DJI Mimo App 23

Connecting to the DJI Mimo App 23

DJI Mimo App Home Screen 24

Camera View 25

Maintenance 27

Firmware Update 27

Underwater Usage Notes 27

Cleaning Notes 28

Battery Usage Notes 28

Using Other Accessories (Not Included) 29

Specifications 32

DJI Osmo Action 4 User Manual

Product Prole

Osmo Action 4 is capable of capturing smooth video at up to 4K/120fps and offers a 155° super-wide FOV. With DJI’s latest EIS (Electronic Image Stabilization) technology, Osmo Action 4 can record super smooth footage for various sports scenes. With a 1/1.3-inch image sensor, the camera ensures low-noise footage in sports scenarios and low-light scenes with a high dynamic range or high contrast. In addition, D-Log M color mode provides a more comfortable color perception and a larger dynamic range, which is convenient for post-production color correction.

Osmo Action 4 is equipped with dual touchscreens. The front touchscreen helps capture the

perfect sele, while the rear touchscreen displays the liveview of the camera. Both touchscreens

enable users to change the settings with fingertip movements. The buttons on the camera enable users to control recording or switch the shooting mode. Osmo Action 4 is waterproof at

depths of up to 18 m. With dierent Osmo accessories, users can enjoy the full range of Osmo

Action 4 features.

Overview

1. Shutter/Record Button

2. Front Touchscreen

3. Lens

4. Status LED I

5. Microphone I

6. Color Temperature Photo Sensor

7. Microphone II

8. USB-C Port

9. USB-C Port Cover

10. USB-C Port Cover Release Button

11. Lens Protective Cover

12. Quick Switch Button

13. Speaker

14. Status LED II

15. Rear Touchscreen

16. Battery Compartment Cover

17. microSD Card Slot

18. Battery Compartment Cover Release Button

19. Windproof Microphone

20. Quick-Release Slot I

21. Quick-Release Slot II

3 4 5

12 11

9 8

20 21

DJI Osmo Action 4 User Manual

Accessories

Osmo Action 4 is compatible with various accessories to exibly change the position to shoot

various sports scenes.

Osmo Action Curved Adhesive Base Kit

The Osmo Action Curved Adhesive Base Kit includes the following accessories.

Accessory Description

Osmo Action Quick-Release Adapter Mount: with a magnetic design, the quick-release adapter mount can be easily attached to the camera and connected to other accessories.

Osmo Locking Screw: secures the Osmo Action Quick-Release Adapter Mount to the Osmo Action Curved Adhesive Base.

Osmo Action Curved Adhesive Base: the base forms a strong, durable, and long-lasting bond on clean and curved surfaces, ensuring secure mounting.

Press down on the camera until the clips of the quick-release adapter mount are rmly inserted

into the quick-release slots on the camera, and then tighten the locking screws. Wipe the

surface of the object before attaching the adhesive base. Attach and press the adhesive base down rmly, and hold for at least 10 seconds. It is recommended to wait 30 minutes before

attaching the camera.

90°90°

DJI Osmo Action 4 User Manual

• Press down on the camera until the clips of the quick-release adapter mount are

rmly inserted into the quick-release slots on the camera, and then tighten the locking

screws. Press both clips of the quick-release adapter mount when removing the camera.

• Osmo Action Curved Adhesive Base can only be applied to clean curved surfaces once.

DO NOT attach the curved adhesive base to surfaces that are at, rough, powdered, peeling, covered in dust or sand, or have oil, wax, or water stains. Otherwise, the adapter mount may not be attached rmly.

• The recommended application temperature for the base is -10° to 40° C (14° to 104° F). DO NOT attach the adhesive base to a surface with a higher or lower temperature.

Osmo Action Horizontal-Vertical Protective Frame

With the Osmo Action Horizontal-Vertical Protective Frame, users can ip the camera from the horizontal to the vertical position for dierent shooting angles. As shown in the gure below,

open the buckle of the horizontal-vertical protective frame, align and place the camera into the frame, and then close the buckle. The left side of the frame is equipped with two quick-release slots, which can be used with the Osmo Action Quick-Release Adapter Mount to fasten other

accessories such as the Osmo Action Curved Adhesive Base Kit and the Osmo 1.5m Extension

Rod.

90°90°

DJI Osmo Action 4 User Manual

Osmo Action Extreme Battery

The Osmo Action Extreme Battery boosts Osmo Action 4 performance across a wide

temperature range from -20° to 45° C (4° F to 113° F). With a 1770 mAh capacity, the battery can continuously work for up to 160 minutes.* Refer to Battery Usage Notes for more detailed information on battery usage.

* Tested at room temperature (25°C/77°F) and 1080p/24fps (16:9), with RockSteady on, Wi-Fi o, and screen

o. This data is for reference only.

Osmo Action Multifunctional Battery Case

The Osmo Action Multifunctional Battery Case (hereinafter referred to as the battery case) is

designed for storing two microSD cards and three Osmo Action Extreme Batteries safely. Users

can check the battery levels by pressing the button once or opening the battery case. The status LEDs will display the battery level. When a charger is connected to the battery case with batteries inserted, the battery case will charge the batteries. When the batteries are inserted

into the battery case, with external devices connected to the USB-C port, the batteries can be used as a power bank to charge the connected external devices.

The batteries with the highest power level will be charged first, followed by the remaining batteries to be charged in sequence. The batteries with the lowest power level will be

discharged rst, followed by the remaining batteries to be discharged in sequence.

When using the battery case to charge the Osmo Action Extreme Battery, it is recommended

to use the DJI 30 W USB-C Charger (not included as standard) or a USB-C charger that supports Power Delivery or PPS (Programmable Power Supply). Three batteries can be fully charged in about two hours with the DJI 30 W USB-C Charger.

• DO NOT use the battery case to charge non-DJI OSMO batteries. DJI OSMO shall not be responsible for any fault or damage caused by the use of any non-DJI OSMO battery.

• Place the battery case on a at and stable surface when in use. Make sure the device is

properly insulated to prevent re hazards.

• DO NOT attempt to touch the metal terminals on the battery ports.

• Clean the metal terminals with a clean, dry cloth if there is any noticeable buildup.

• The battery case is not waterproof. DO NOT place it in water or spill any liquid on the case.

DJI Osmo Action 4 User Manual

Using for the First Time

Attaching the Battery

Press the release button on the battery compartment cover and slide upward, then insert the battery into the battery compartment, as shown below. Make sure the battery is properly inserted, then close the battery compartment cover. Note: if the battery cover is properly mounted, the red marks on the bottom will not be visible.

Inserting the microSD Card

The footage shot on Osmo Action 4 is stored on a microSD card. A UHS-I Speed Grade 3 rating microSD card is required due to the fast reading and writing speeds necessary for high-

resolution video data. Refer to the recommended microSD card list in Specications for more

information. Insert the microSD card into the microSD card slot as shown.

• Gently push the microSD card into the camera to partially eject the microSD card.

DJI Osmo Action 4 User Manual

Device

Charging Osmo Action 4

Press the release button on the USB-C port cover and slide the cover down.

Connect a USB-C charger (not included) to the USB-C port using the Type-C to Type-C PD cable (included). It is recommended to use the DJI 30 W USB-C Charger or a USB-C charger that

supports Power Delivery or PPS (Programmable Power Supply). When the status LEDs turn o,

the battery is fully charged. It takes about 18 minutes to charge the battery to 80%. The battery can be fully charged in about 49 minutes.*

* Charging time was tested using a DJI 30 W USB-C Charger in a 25° C (77° F) environment. For reference only.

Activating Osmo Action 4

The DJI Mimo app is required for activation when using Osmo Action 4 for the rst time. Follow

the steps below to activate.

1. Press and hold the Quick Switch Button to power on.

2. Enable Wi-Fi and Bluetooth on the mobile device.

3. Launch DJI Mimo, tap , and follow the instructions to activate Osmo Action 4.

DJI MIMO

Device ACADEMY

TEMPLATE

OSMO MOBILE 4

00!39

Life Advice Looking Through... Do A Sporting Stag

Home EditAlbum Me

Refer to the relevant sections in DJI Mimo App for more information on how to operate the app.

SUPPORT

COMMUNITY

01!23

DJI Osmo Action 4 User Manual

Operation

Button Features

Quick Switch Button

Shutter/Record Button

• Press once: take a photo or start/stop recording.

• Press and hold when powered o: power on quickly and begin shooting. The shooting mode

will depend on the SnapShot settings. After shooting, the camera will automatically power o

if left idle for three seconds.

Quick Switch Button

• Press and hold: power on/o.

• Press once: switch between shooting modes. When shooting in Video and Slow Motion mode, press once to mark a highlight.

Operating the Touchscreen

After the camera is powered on, both touchscreens of the camera display the liveview as well as the shooting mode, battery level, and microSD card information. Tap or swipe on a touchscreen to interact with the camera. Note: the two touchscreens cannot be operated at the same time. When one touchscreen is operated, the other touchscreen is locked.

Operating the Touchscreen Descriptions

Tap

Select the icons on both sides of the screen to playback shot footage and change the camera settings.

Swipe Down from the top of the Screen

Enters the control menu.

DJI Osmo Action 4 User Manual

1.0x

1080P30

20m22s

Camera View

Swipe Left or Right

Switches between video, photo, and other shooting modes.

Swipe Up from the Bottom of the Screen

Sets the shooting parameters such as Aspect Ratio, Countdown Timer, and Resolution.

20m22s

1. Storage Capacity Information

: the icon displays either the storage capacity, the remaining number of photos or the video duration that can be taken or recorded according to the current shooting mode. The icon is displayed only when a microSD card is inserted.

2. Playback

: tap to preview the last photo or video captured or played back. Swipe from the right to

exit playback and go back to liveview. When playing back the video, the playback speed can be adjusted. Users can tap to mark highlights, helping to quickly locate specic moments

during post-editing, reducing the time to find highlights. The marked highlights can be viewed during playback in DJI Mimo.

3. Shooting Modes

: tap the icon and swipe to select the shooting mode.

DJI Osmo Action 4 User Manual

Shooting Modes Description

Take a photo Take a photo or countdown photo.

Video Record a video.

Slow Motion Supports 4x or 8x slow-motion video shooting. In Slow Motion mode,

the camera records the video with a high frame rate and slows the

footage down to 4x or 8x the normal speed during playback. Slow

Motion catches details not visible to the naked eye, which is ideal for fast-action shots. Note: slow-motion videos do not include audio. The

audio le is stored as a standalone le and has the same path as the

videos, which can be transferred to your computer.

Timelapse Select from Hyperlapse and Timelapse. In this mode, the camera

turns long events into short videos by taking a frame of video at set intervals.

Use Hyperlapse to record smooth timelapse videos when the camera is in motion (such as in a car or when held in the hand). Use Timelapse to record timelapse videos when the camera is mounted and still.

Three presets in Timelapse are designed for typical scenes such as Crowds, Clouds, and Sunset. Users can also optimize the interval and duration for recording timelapse videos.

4. Battery Level

: this icon displays the current battery level of Osmo Action 4. Tap the icon to view more

detailed information about the battery level.

5. Parameters

: click to adjust the image and audio parameters. Tap PRO to adjust pro parameters.

Various parameters can be set in dierent shooting modes.

Shooting Modes Parameters

Photo Basic Mode

The FOV can be adjusted.

FOV: the FOV can be set to Standard (Dewarp) or Wide.

PRO Mode

Exposure, White Balance, FOV, and Format are available.

1. Exposure: Auto and Manual modes are available.

2. White Balance: Auto and Manual modes are available.

3. FOV: the parameters are same with Basic Mode.

4. Format: select the picture to be stored as JPEG or JPEG+RAW.

DJI Osmo Action 4 User Manual

Video Basic Mode

FOV, Image Adjustment, EIS Priority in Low Light, and Low-Light Image

Enhancement are available.

1. FOV: FOV can be set to Narrow, Standard (Dewarp), Wide, or Ultra

2. EIS Priority in Low Light: enabling EIS Priority in Low Light will remove

3. Image Adjustment: users can adjust the sharpness and noise

4. Low-Light Image Enhancement: when enabled, the camera will

PRO Mode

Image and audio parameters can be adjusted.

Image Parameters: Exposure, White Balance, Color, FOV, Image Adjustment, and Low-Light Image Enhancement are available.

• Exposure: Auto and Manual modes are available.

• White Balance: Auto and Manual modes are available.

• Colors: Normal and D-Log M are available. D-Log M is designed for

• FOV: the parameters are same with Basic Mode.

• Image Adjustment: the parameters are same with Basic Mode.

• Low-Light Image Enhancement: the parameters are same with Basic

Audio Parameters: Channel, Wind Noise Reduction, and Gain are available.

• Channel: select from Stereo or Mono.

• Wind Noise Reduction: when enabled, the camera will reduce the

• When a microphone is connected, the input gain of the microphone

Wide. Some FOV options are unavailable when using certain frame rates.

motion blur and disable anti-icker function. Image sharpness may be aected when ambient light is too low.

reduction based on needs for optimal image quality.

detect low-light environment automatically and adjust exposure

parameters intelligently to improve image quality.

professional color grading in post-editing. In high-contrast or multi-

color (e.g., garden, eld, etc.) scenarios, it can enlarge the dynamic

range for more color-tuning space in post-production. 10-bit color depth enables smoother color transition.

Mode.

wind noise picked up by the built-in microphone using algorithms. Note: Wind Noise Reduction does not work when connected to the

external microphone.

can be adjusted.

Slow Motion Basic Mode

1.0x

The FOV and image parameters can be adjusted.

1. FOV: FOV can be set to Standard (Dewarp) or Wide.

2. Image Adjustment: users can adjust the sharpness and noise

reduction based on needs for optimal image quality.

PRO Mode

Exposure, White Balance, Color, FOV, and Image Adjustment are

available.

1. Exposure Exposure: Auto and Manual modes are available.

2. White Balance: Auto and Manual modes are available.

3. Colors: Normal and D-Log M are available. D-Log M is designed for professional color grading when post-editing. In high-contrast

or multi-color (e.g., garden, eld, etc.) scenarios, it can enlarge the

dynamic range for more color-tuning in post-production. 10-bit color depth enables smoother color transition.

4. FOV: the parameters are same with Basic Mode.

5. Image Adjustment: the parameters are same with Basic Mode.

Timelapse Hyperlapse

Basic Mode: FOV, EIS Priority in Low Light, and Image Adjustment are

available.

PRO Mode: Exposure, White Balance, Color, FOV, and Image Adjustment

are available.

DJI Osmo Action 4 User Manual

Timelapse

Basic Mode: FOV and Image Adjustment are available.

PRO Mode: Exposure, White Balance, FOV, and Format are available.

6. Zoom

: press and hold the icon, then drag to set the zoom ratio.

DJI Osmo Action 4 User Manual

Swipe Down - Control Menu

Swipe down from the edge of the screen to enter the control menu.

2 3 4

5 6 7 8

1. Custom Mode

Tap and tap to save the current conguration as a custom mode. Save the shooting parameters in the custom mode, which can then be used directly to shoot similar scenes.

Users can save up to ve custom modes.

2. Quick Switch

Set the modes accessible with the Quick Switch Button: Screen Switch, Custom Modes, Photo, Video, Slow Motion, Timelapse, Hyperlapse, and Playback. When Voice Prompt is enabled, the camera will voice broadcast the shooting mode once the quick switch button is pressed to change the mode. When the camera is installed on a helmet or other hard-to-see locations, users can accurately select the required mode with Voice Prompt.

3. Brightness

Tap and move the slider to adjust the brightness.

4. Settings

Item Description

SnapShot When Osmo Action 4 is powered o or in sleep mode, use SnapShot

to quickly power on and begin shooting. Supported shooting modes include Photo, Video, Last Settings, Video, Hyperlapse, and Custom Modes.

After shooting, the camera will automatically power o if left idle for

three seconds.

Single Screen

Preview (Scrn O

When Locked)

Voice Control Tap to enable voice control to use the camera with voice commands.

When enabled, only one touchscreen will turn on. Tap and swipe up on the touchscreen to unlock the screen.

Mandarin Chinese and English are supported. Voice commands in English include Start Recording, Stop Recording, Take Photo, and Shut Down.

DJI Osmo Action 4 User Manual

OTG Connection Tap OTG Connection and connect the camera to an Android device

with the Type-C to Type-C PD cable (included). With OTG connection, the files can be transferred from the camera to an Android device. Note: OTG Connection is only available when the Android device supports OTG connection.

Wireless Connection

Tap to check wireless information, select Wi-Fi frequency, and reset the Wi-Fi connection. Connect the camera to DJI Mimo wirelessly to

update the rmware version.

Video Compression

Tap to switch the video-encoding format between Efficiency and

Compatibility modes. If Eciency is selected, videos will be encoded in HEVC with a smaller le size. If Compatibility is selected, videos will be

encoded in H.264 with higher compatibility.

Sounds Tap to set volume. High, medium, low, and mute are available.

Grid Tap to display grid lines in liveview photos or videos to help level the

camera vertically and horizontally. The display options include Grid, Diagonals, and Grid & Diagonals.

Timecode Tap to set Timecode for the camera. When setting Timecode, the

camera can be synchronized by the system settings. Also, the camera can be synchronized by the time code synchronizer using the USB-C port.

Naming

Tap to edit the naming rules for storage folders and les.

Management

Scrn O When Rec Tap to set the time. After recording starts, the screen will turn o after

the set time. This will not aect the recording.

Auto Power O Tap to set the time. The camera will power off automatically when

there is no operation on camera within the set duration.

LED Turn the two status LEDs on Osmo Action 4 on or o.

Horizon

Tap to calibrate the horizon according to the prompts on the screen.

Calibration

Continue Last Livestream

Tap to enable, so the camera can continue the last livestream after it has stopped. Note: Livestream is only available on DJI Mimo.

Language Tap to set the language to English, Simplified Chinese,Traditional

Chinese, Japanese, Korean, Thai, Arabic, German, Spanish, French, Italian, Russian, Brazilian Portuguese, Turkish, Indonesian, or Polish.

Date and Time Tap to set the date and time of the camera system.

Format Tap and swipe to format the microSD card. Formatting will

permanently delete all data on the microSD card. Make sure to back up all required data before formatting.

Factory Reset Tap to restore the camera to its original factory settings. This will

delete all the current settings, and the camera will be restored to the original factory settings and restart.

DJI Osmo Action 4 User Manual

Device Info Tap to view the device name, serial number, rmware version, quick

start guide, and export the log. Tap Export Log to export the log to the

microSD card. When the camera is connected to the Osmo Action GPS

remote controller, users can view the rmware version of the remote

controller.

Compliance Info Tap to view the compliance information.

5. Orientation Lock

Tap to switch between automatic orientation and locked orientation.

6. Screen Lock

Tap to lock the screen. Swipe up on the touchscreen to unlock the screen.

7. Voice Control

Tap to enable Voice Control so the user can control the camera with set voice commands. Voice Control is useful in the sports scenarios where hands are busy such as when cycling or skiing.

8. Full Front Screen

Tap to enable or disable full screen display on the front screen.

DJI Osmo Action 4 User Manual

Swipe Up - Parameters Settings

Swipe up from the bottom of the screen to set the parameters for each shooting mode.

Shooting Modes Settings

Photo Set Aspect Ratio and Countdown Timer.

Video Set video resolution and frame rate.

Tap the upper left corner to enable Pre-Rec or Loop Recording and set the time duration.

• Pre-Rec: When enabled, the camera will pre-record footage within the set time duration. Once the Shutter/Record button is pressed, the camera will save the latest pre-recorded footage before pressing the Shutter/Record button and keep recording, then save the footage as a whole video. This function allows the camera to save the footage before pressing the Shutter/Record button to avoid taking up too much space on the microSD card,

helping capture highlights (especially for shing).

• Loop Recording: When enabled, the camera records a video by overwriting older footage with new footage at selected time intervals. This function allows the camera to save space on the microSD card, and is suitable for use in scenarios where the user is waiting to capture unanticipated highlights (such as driving).

Tap on the upper right corner to turn o EIS and enable RockSteady,

RockSteady+, HorizonBalancing, or HorizonSteady. For different resolutions and frame rates, certain EIS modes can only be selected.

Dierent EIS modes have dierent stablization performance.

• Disabled: when selected, record the video with the largest FOV.

• RockSteady: stabilizing footage while retaining the dynamics of movement, which is suitable for first-person perspective shooting.

• RockSteady+: compared with RockSteady, the edges of these images will be cut off more to obtain stronger stabilization performance.

• HorizonBalancing: this mode corrects shakes for any horizontal rotation (45°). In this mode, 4K resolution video is supported.

• HorizonSteady: this mode corrects shakes for any horizontal rotation (360°) and locks onto a leveled horizon in every frame, regardless of how the camera is mounted or worn.

Slow Motion Set the video resolution and speed ratio.

DJI Osmo Action 4 User Manual

Hyperlapse Select Hyperlapse or Timelapse mode. The speed ratio can be set in

Hyperlapse mode. The scene, interval time, and shooting time can be set when using Timelapse.

Tap the upper right corner to set the resolution when using Timelapse.

Status LED Descriptions

Osmo Action 4 has two status LEDs which indicate the same status information. They can be

turned on and o.

Blinking Pattern Description

Solid green Ready to use

Temporarily o Taking a photo

Blinks green Osmo Action 4 is charging when powered o

Blinks red and green alternately

Blinks red slowly Recording a video or taking a countdown photo

Blinks red three times rapidly

O MicroSD card abnormality (no microSD card detected, microSD card

Updating rmware

Powers o the camera or powers on the camera at low battery level

storage is full, or microSD card error.)

Status LED II

Status LED I

DJI Osmo Action 4 User Manual

Storing Photos and Videos

The footage shot on Osmo Action 4 can only be stored on a microSD card (not included). A UHS-I Speed Grade 3 rating microSD card is required due to the fast read and write speeds necessary for high-resolution video data. The photos and videos can be transferred to a mobile device or computer. Refer to Transferring Files for detailed information.

Transferring Files

Transferring Files to a Phone

Connect Osmo Action 4 to DJI Mimo, tap the Playback icon to preview photos and videos. Click

to download photos and videos. The photos and videos can be shared directly from DJI Mimo

to social media platforms.

Transferring Files to a Computer

Power on Osmo Action 4 and connect it to a computer using a USB-C cable. When connected to a computer, a pop-up will appear, this prompts the user to select the USB connection type on the camera touchscreen. Tap Transfer File to download the files from the camera to the

computer. When transferring a le, the camera cannot take photos or record videos.

Select Cancel to only charge Osmo Action 4.

• Reconnect Osmo Action 4 to the computer if a le transfer is interrupted.

OTG Connection for Transferring Files

For the Android devices supporting OTG connection, the files can be transferred from the camera to the Android device with OTG connection.

Connect the camera to an Android device with the Type-C to Type-C PD cable (included) using the USB-C port on the camera. When connected, view and transfer the photos and videos of the

camera via the device album or le management.

• If the camera cannot automatically recognize the Android device using the OTG connection, swipe down from the edge of the screen and enter the control menu. Tap Settings > OTG Connection, and use the Type-C to Type-C PD cable to connect the camera to device.

DJI Osmo Action 4 User Manual

Webcam Mode

Osmo Action 4 can work as a webcam on a computer. Power on the camera and connect it to the computer using a USB-C cable. The camera will go into USB mode. Tap Webcam to enter the Webcam mode, and the camera will function as a webcam input device. The bottom of the screen displays Webcam. Press the shutter/record button to start recording. Tap the Image

Parameter Settings icon on the right side of the screen to set the exposure, white balance, and FOV parameters. Users can preview recorded videos after exiting the Webcam mode.

Microphone Connection

Osmo Action 4 can be linked to an external microphone, including DJI Mic or any third-party

digital USB-C microphones that support 48K/16bit.

Follow the steps below (with DJI Mic as an example) to connect to a microphone:

1. Press the release button on the USB-C port cover and slide it downward. Lift the cover upward until it is detached from the device.

2. Power on the receiver and transmitter, and make sure the receiver and transmitter are linked.

3. Attach the receiver to the USB-C port of the camera using the USB-C adapter. A microphone icon will be displayed on the screen.

4. Press the linking button on the transmitter to start recording while using the transmitter for audio. Press the linking button again to stop recording.

• The transmitter and the receiver are linked by default. Follow the steps below to link if the transmitter and receiver are disconnected.

a. Place the transmitter and the receiver in the charging case to link automatically.

b. Power on the transmitter and the receiver, press and hold the link button on the

transmitter, slide down on the screen of the receiver, select Settings and scroll through and tap Link Device to start linking. The status LED glows solid green to indicate linking was successful.

REC

DJI Osmo Action 4 User Manual

DJI Mimo App

When used with the DJI Mimo app, users can monitor the current camera view, set the camera parameters, and control the camera with a mobile device. The DJI Mimo app enables user to

get most out of Osmo Action 4 with a series of functions, such as transferring les, editing and

sharing, InvisiStick for Skiing, and Wi-Fi livestream.

Download the DJI Mimo App

Search DJI Mimo in the app store, or scan the QR code to download and install.

DJI Mimo App

DJI Store App

https://s.dji.com/guide60

Android 8.0 or aboveiOS 12.0 or above

Connecting to the DJI Mimo App

1. Power on Osmo Action 4.

2. Enable Wi-Fi and Bluetooth on the mobile device.

3. Launch DJI Mimo, tap , and follow the instructions to activate Osmo Action 4.

• If there is a problem when connecting to DJI Mimo, follow the steps below.

a. Make sure that both Wi-Fi and Bluetooth are enabled on the mobile device.

b. Make sure the DJI Mimo app has the latest rmware version.

c. Swipe down from the top of the screen to enter the control menu, select Wireless

Connection > Reset Connection. The camera will reset all connections and Wi-Fi passwords.

DJI Osmo Action 4 User Manual

DJI Mimo App Home Screen

Lauch DJI Mimo and enter the home screen.

Device: tap to connect to Osmo Action 4. Once connected, DJI Mimo enters the camera

view.

Academy: tap to watch tutorials and view manuals.

AI Editor: provides several templates for editing photos or videos.

TEMPLATE

Home: tap to return to the home screen.

Album: manage and view footage from a mobile device or DJI device.

Editor: tap to edit photos or videos on Osmo Action 4 or import them to and edit on a

mobile device.

Prole: register or log in to a DJI account. View works and settings, check likes and followers,

send messages to other users, or connect with the DJI Store.

DJI Osmo Action 4 User Manual

VIDEO

SLOWMOTION

PHOTO

LIVESTREAM

1.0x

59:59

Camera View

The camera view display may differ depending on the shooting mode. This display is for reference only.

1 2 3 4 5

11 10

1. Home

1.0x

: tap to return to the home screen.

2. Wi-Fi

: displays Wi-Fi connection.

3. Battery Level

: displays the current battery level of Osmo Action 4.

4. microSD Card Information

: displays either the remaining number of photos that can be taken or the video

duration that can be recorded according to the current shooting mode.

5. Custom Mode

: tap and tap to save the current configuration as a custom mode. Save the

shooting parameters in the custom mode, which can then be used directly to shoot similar

scenes. Users can save up to ve custom modes.

6. Shutter/Record Button

: tap to take a photo or to start or stop recording a video.

DJI Osmo Action 4 User Manual

7. Shooting Modes

Scroll to select the shooting mode.

Shooting Modes Description

Hyperlapse Use Hyperlapse to record smooth timelapse videos when

the camera is in motion (such as in a car or when hand-held). Tap Playback to preview timelapse videos as soon as they are captured.

Timelapse Use Timelapse to record timelapse videos when the camera is

mounted and still. Three presets in Timelapse are designed for typical scenes such as Crowds, Clouds, and Sunset. Users can also optimize the interval and duration for recording timelapse videos.

Slow Motion Supports 4x or 8x slow-motion video shooting. In Slow Motion

mode, the camera records the video with a high frame rate and

slows the footage down to 4x or 8x the normal speed during

playback. Slow Motion catches details not visible to the naked eye, which is ideal for fast-action shots. Note: slow-motion videos

do not include audio. The audio le is stored as a standalone le

and has the same path as the videos, which can be transferred to your computer.

Video Record a video.

Photo Take a photo or countdown photo.

Live Stream Osmo Action 4 supports live broadcasting to livestream platforms

such as YouTube and Facebook.

8. Playback

: tap to preview photos and videos as soon as they are captured.

9. Settings

: set the selected shooting mode as Basic or Pro mode. More settings become available

once Pro is enabled, including FOV, Format, Exposure and White Balance. Various parameters can be set when using dierent shooting modes.

10. Shooting Parameters

: displays the parameters of the current shooting mode. Tap to set the parameters.

11. Zoom

: displays the current zoom ratio. Place two ngers on the screen and move them apart

to zoom in or pinch together to zoom out.

DJI Osmo Action 4 User Manual

Maintenance

Firmware Update

The rmware version of Osmo Action 4 is updated using DJI Mimo.

Make sure the battery level of Osmo Action 4 is at least 15% before updating its firmware

version. Connect Osmo Action 4 to the DJI Mimo app. If new rmware is available, users will be notied by DJI Mimo. Update the rmware according to the on-screen instructions. The update takes approximately 2 minutes.

Underwater Usage Notes

Osmo Action 4 can be used underwater at depths of up to 18 m. When used with the Osmo Action 60m waterproof case, the device can operate underwater up to 60 m deep. Observe the following precautions when using the device in water.

1. Make sure the battery and battery compartment are dry and clean before inserting the

battery. Otherwise, it may aect the battery contact and waterproong ability. Make sure the battery compartment cover is rmly fastened after the battery is inserted. Note: if the cover

is properly mounted, the red marks on the bottom will not be visible.

2. Make sure the USB-C port cover is clean and closed before using. Otherwise, it will aect the device waterproong ability.

3. Make sure the lens protective cover is clean and closed before using. Otherwise, it will aect the device waterproong ability. Make sure the lens protective cover and lens are dry and clean. Sharp or hard objects may damage the lens and aect the ability of the device. Make sure the lens protective cover are rmly mounted and fastened.

4. Osmo Action 4 is not waterproof unless the battery compartment cover, USB-C port cover,

and lens protective cover are rmly mounted and fastened. The camera is NOT waterproof

when used with Osmo Action Lens Hood.

5. Avoid jumping into water at high speed with Osmo Action 4. Otherwise, the impact may result in water seepage. Make sure the camera is waterproofed before jumping into water.

6. DO NOT use Osmo Action 4 in hot springs or extreme underwater environments. DO NOT

let Osmo Action 4 to come into contact with corrosive or unknown liquids.

7. Rinse the camera with clean water after using it underwater. Allow it to dry naturally before using again. DO NOT dry the camera with hot air using a hair dryer, otherwise the microphone membrane and the built-in breathable membrane will rupture, and the camera will no longer be waterproof.

Attach the waterproof case to Osmo Action 4 when using it while diving, surng, underwater for an extended period, or in other situations involving high water impact. Observe the following

precautions when using the device with the waterproof case:

1. Make sure the rubber seal is clean and rmly attached during use.

2. Make sure the waterproof case is dry (for best results, place anti-fog ber in the case during

use) and the latch is secure.

DJI Osmo Action 4 User Manual

3. Before use, it is recommended to place the waterproof case underwater for approximately 5

minutes to ensure it is working properly.

4. Rinse the case with tap water to prevent corrosion after using it in the sea.

• The touchscreens of Osmo Action 4 can be operated when their surface is wet.

• The touchscreens cannot function underwater. Users can press the camera buttons to start recording. Shutter/record button is disabled automatically when the camera is used without Osmo Action waterproof case at a depth of more than 14 m.

Cleaning Notes

1. Clean the lens protective cover with water or a lens cleaning pen, lens air blower, or lens cleaning cloth. When changing the lens protective cover, make sure the camera is dry. After using Osmo Action 4 in water, let the camera dry before using it again. This will prevent water from seeping into the lens protective cover and fogging up the lens. DO NOT remove the lens protective cover frequently to avoid dust accumulating inside the lens cover, which

can aect shooting quality.

2. Clean the lens with a lens cleaning pen, lens air blower, or lens cleaning cloth.

3. Clean the battery and battery compartment with a clean, dry cloth.

Make sure the quick-release slots on the camera are clean from dust and sand when attaching the Quick-Release Adapter Mount.

Battery Usage Notes

1. DO NOT use non-DJI OSMO batteries. New batteries can be purchased at www.dji.com. DJI

OSMO shall not be responsible for any fault or damage caused by the use of any non-DJI OSMO batteries.

2. The battery should be used at temperatures between -20° to 45° C (-4° to 113° F ). Use of

the battery at temperatures above 45° C (113° F) can lead to a re or explosion. Before using

the battery in a low-temperature environment, it is recommended to charge the battery fully in a normal temperature environment. Charging the battery at the ideal temperature can prolong battery life.

3. Battery performance will be aected if the battery is not used for an extended period.

4. Discharge and charge the battery completely once every three months to keep it in good working condition.

5. Remove the battery from Osmo Action 4 and store the battery in the Osmo Action

Multifunctional Battery Case when stored for an extended period.

Using Other Accessories (Not Included)

Accessory Diagram

Osmo 1.5m Extension Rod

DJI Osmo Action 4 User Manual

≈1.5m

Osmo Magnetic Ball-Joint Adapter Mount

1. Adjust the telescopic length of the extension rod

appropriately when in use.

2. DO NOT drop or strike the extension rod in any

way when in use to avoid damage.

3. DO NOT shake the extension rod violently when

installed with the camera to avoid damage.

4. Rinse with clean water to remove sand after underwater usage.

5. DO NOT use the extension rod during

thunderstorms to avoid lightning strikes.

DJI Osmo Action 4 User Manual

Osmo Action 60m Waterproof Case

DJI Floating Handle

Osmo Action Suction Cup Mount

Osmo Action Helmet Chin Mount

Osmo Action Chest Strap Mount

Osmo Action Handlebar Mount

DJI Osmo Action 4 User Manual

Osmo Action GPS Bluetooth Remote Controller

Support for DJI devices will be updated continuously. Visit https://www.dji.com/osmo-action-4

for a complete list.

DJI Osmo Action 4 User Manual

Specications

General

Dimensions 70.5×44.2×32.8 mm (L×W×H)

Weight 145 g

Waterproof 18 m

Number of Microphones 3

Touchscreens Front Screen: 1.4-inch 323 ppi 320×320

Supported SD Cards microSD (up to 512 GB)

Recommended microSD Cards Recommended models:

Camera

Sensor 1/1.3-inch CMOS

Lens FOV: 155°

ISO Range Photo: 100-12800

Electronic Shutter Speed Photo: 1/8000-30 s

Max Photo Resolution 3648×2736

Zoom Digital Zoom

Still Photography Modes Single: Approx. 10 MP

[1]

without the Waterproof Case, 60 m with the

Waterproof Case

Rear Screen: 2.25-inch 326 ppi 360×640 Front/Rear Screen Brightness: 750±50 cd/m²

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 256GB SDXC UHS-I V30 R160/W120 (1066x) Lexar Pro 512GB SDXC UHS-I V30 R160/W120 (1066x)

Aperture: f/2.8

Focus Range: 0.4 m to ∞

Video: 100-12800

Video: 1/8000 s to the limit of frames per second

Photo: 4×

Video: Max 2×

Slow Motion/Timelapse: not available

Countdown: O/0.5/1/2/3/5/10 s

DJI Osmo Action 4 User Manual

Standard Recording 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

Slow Motion 4K: 4× (120fps)

2.7K: 4× (120fps) 1080p: 8× (240fps), 4× (120fps)

Hyperlapse 4K/2.7K/1080p: Auto/×2/×5/×10/×15/×30

Timelapse 4K/2.7K/1080p@30fps

Intervals: 0.5/1/2/3/4/5/6/8/10/15/20/25/30/40 s

Duration: 5/10/20/30 mins, 1/2/3/5 hours, ∞

Stabilization EIS

[2]

: RockSteady 3.0 RockSteady 3.0+ HorizonBalancing HorizonSteady

Max Video Bitrate 130 Mbps

Supported File System exFAT

Photo Format JPEG/RAW

Video Format MP4 (H.264/HEVC)

Built-in Storage Capacity The camera does not have built-in storage, but storage

capacity can be expanded by inserting a microSD card.

Audio Output 48 kHz 16-bit; AAC

Battery

Type LiPo 1S

Capacity 1770 mAh

Energy 6.8 Wh

Voltage 3.85 V

Operating Temperature -20° to 45° C (-4° to 113° F)

Charging Temperature 5° to 40° C (41° to 104° F)

Operating Time 160 minutes

[3]

Connection

Wi-Fi Operating Frequency 2.4000-2.4835 GHz

5.150-5.250 GHz

5.725-5.850 GHz

DJI Osmo Action 4 User Manual

Wi-Fi Protocol 802.11 a/b/g/n/ac

Wi-Fi Transmitter Power (EIRP) 2.4 GHz: < 15 dBm (FCC/CE/SRRC/MIC)

5.1 GHz: < 16 dBm (FCC/CE/SRRC/MIC)

5.8 GHz: < 14 dBm (FCC/CE/SRRC)

Bluetooth Operating Frequency 2.400-2.4835 GHz

Bluetooth Transmit Power (EIRP) <3 dBm

Bluetooth Protocol BLE 5.0

[1] Before use, close the battery compartment cover and the USB-C port cover, and tighten the Lens

Protective Cover. It is recommended to install the Waterproof Case for long-duration underwater shooting or in environments with high water impact 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.

[2] EIS is not supported in Slow Motion and Timelapse modes. HorizonSteady is only available when the video

resolution is 1080p (16:9) or 2.7K (16:9) with a frame rate of 60fps or below. HorizonBalancing is only available when the video resolution is 1080p (16:9), 2.7K (16:9), or 4K (16:9) with a frame rate of 60 fps or below.

[3] Tested at room temperature (25°C/77°F) and 1080p/24fps (16:9), with RockSteady on, Wi-Fi o, and screen

o. This data is for reference only.

WE ARE HERE FOR YOU

Contact

DJI SUPPORT

This content is subject to change.

https://www.dji.com/osmo-action-4/downloads

If you have any questions about this document, please contact DJI by sending a message to DocSupport@dji.com.

Dji Osmo Action 4 User Manual v1.2

Specifications and Main Features

Frequently Asked Questions

User Manual

Using this Manual

Legends

Read Before Use

Download DJI Mimo App and Watch the Tutorial Video

Contents

Overview

Accessories

Using for the First Time

Attaching the Battery

Inserting the microSD Card

Charging Osmo Action 4

Activating Osmo Action 4

Operation

Button Features

Operating the Touchscreen

Status LED Descriptions

Webcam Mode

Microphone Connection

DJI Mimo App

Download the DJI Mimo App

Connecting to the DJI Mimo App

DJI Mimo App Home Screen

Camera View

Maintenance

Firmware Update

Underwater Usage Notes

Cleaning Notes

Battery Usage Notes

Using Other Accessories (Not Included)