Unboxing & Activating the Camera

In the Box

Upon receipt of the camera, consult the In the Box list for the product and provided accessories.


About Osmo Action 4

Take a quick glance through the following photos to familiarize yourself with Osmo Action 4.



Charging the Camera

It is recommended to use the DJI 30W USB-C Charger or a USB-C charger that supports PPS/PD fast charging protocol, along with the USB-C to USB-C PD Cable provided in the combo, to charge the Osmo Action 4.

Charging Using the DJI 30W USB-C Cable

Power off the camera, and connect it to a charger via the DJI 30W USB-C Cable. The status LEDs blink green during the charging process, and turn off when the battery is fully charged. It takes about 18 minutes to charge the battery to 80%, and the battery can be fully charged in about 49 minutes.

Charging the Camera Using the Multifunctional Battery Case

Connect the multifunctional battery case to a power source using the DJI 30W USB-C Charger. The batteries with the highest power level will be charged first, followed by the remaining batteries to be charged in sequence. It takes approximately two hours to fully charge three batteries.

Tested in a 25 (77°F) laboratory environment while using DJI 30W USB-C Charger with the photo taking/video recording function disabled and screen off, and should be used for reference only.


Powering on/off the Camera

Press and hold the Quick Switch Button on the left side of the camera to turn it on or off.

Powering on the Camera

Power off the Camera


Activating the Camera

You can try Osmo Action 4 by skipping the activation process for 5 times. Once the trials exhaust, or in case of operations requiring connecting to a phone, it is necessary to activate the camera. DJI Mimo is required for activation when using Osmo Action 4 for the first time. Click to download the DJI Mimo App.


Connecting Osmo Action 4 to a Mobile Phone for Activation

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

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

3. Launch DJI Mimo, tap the camera icon, and follow the on-screen instructions to activate Osmo Action 4.

Refer to this video for the activation steps.



Basic Operations


Osmo Action 4 is designed with two buttons, shutter/record button on the top, and quick switch button on the left.

Refer to this video for the functions and usage tips of each button.


Control Menu

Swipe down from the top of the screen to enter the Control Menu.

Refer to this video for the functions and usage tips of each button.


Material Storage and Export

The footage shot on Osmo Action 4 can only be stored on a microSD card (not included). The camera cannot be used to shoot videos or photos without a microSD card, and 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 this link for the recommended microSD card list.


Inserting a microSD Card:

Removing the microSD Card:

You can download camera footage to your phone for editing and sharing by connecting your phone to the DJI Mimo App, or export the footage to a computer via a USB-C cable.

Refer to this video for file exporting steps.


Firmware Update

Connect Osmo Action 4 to the DJI Mimo app for a firmware update. If new firmware is available, you will be notified by DJI Mimo. Update the firmware according to the on-screen instructions. Make sure that the battery level of the camera is over 15% before updating the firmware. The update takes approximately 2 minutes.

Refer to this video for firmware update steps.


Advanced Operations

Slow Motion

Osmo Action 4 supports 4x and 8x slow-motion video shooting.

Refer to this video for shooting slow-motion footage.



Osmo Action 4 supports in Hyperlapse and Timelapse modes.

Refer to this video for shooting in Timelapse or Hyperlapse mode.


Live Stream

Osmo Action 4 supports live broadcasting to livestream platforms such as YouTube and Facebook.

Refer to this video for using the Live Stream function.


Voice Control

Swipe down from the top of the screen to enter the Control Menu, tap the Voice Control icon to enable or disable Voice Control. Tap to enable Voice Control, so you can control the camera with set voice commands. Mandarin Chinese and English are supported. Voice commands in English include Start Recording, Stop Recording, Take Photo, and Shut Down.


Webcam Mode

Osmo Action 4 can work as a webcam. 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 parameters such as exposure, white balance, FOV, and EIS. You can preview recorded videos after exiting the Webcam mode.



Accessories Usage Tips

Osmo Action 4 is compatible with various accessories to flexibly change the position to shoot various sports scenes. Note that some accessories are not provided in the camera combo, and requires an additional purchase.


Using the Camera While Cycling

When using the camera with an accessory, such as Chest Strap Mount or Handlebar Mount, you can fix the camera on the chest or handlebar for multi-angle shooting.

Refer to this video for using Osmo Action 4 in cycling scenes.

Using the Camera While Skiing

Osmo Action 4 supports a variety of selfie and follow-cam angles when used with the 1.5m Extension Rod, and supports using the InvisiStick for Skiing function in DJI Mimo when recoding during skiing.

Refer to this video for using Osmo Action 4 in skiing scenes.

Usage Tips for Osmo 1.5m Extension Rod:  

1. DO NOT drop or strike the extension rod in any way when in use to avoid damage.

2. DO NOT shake the extension rod violently when installed with the camera to avoid damage.

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

4. DO NOT use the extension rod during thunderstorms to avoid lightning strikes.


Using the Camera While Diving

With the Osmo Action 60m Waterproof Case and DJI Floating Handle, Osmo Action 4 supports underwater creation at depths of up to 60m.

Refer to this video for using Osmo Action 4 in diving scenes.

Attach the 60m Waterproof Case when using the camera while diving, surfing, underwater for an extended period, or in other situations involving high water impact. Usage Tips for the 60m Waterproof Case:  

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

2. Make sure that the waterproof case is dry before use (and it is recommended to put in a piece of anti-fog foam to avoid fogging) and the lock can be used normally.

3. Before use, it is recommended to put the case alone underwater for about 5 minutes to ensure it is working properly.  

4.  Rinse the camera with clean water after using underwater.


Accessories Compatibility

For more information about the accessories compatibility, please refer to Accessories Compatibility for Handheld Products.


Accessory Purchase

For more accessories, please visit DJI Store.



Underwater Usage Notes

Osmo Action 4 can be used underwater at depths of up to 18 m. It is recommended to use it with the 60m Waterproof Case, which will increase its waterproof capabilities to 60 meters. 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 affect the battery’s contact and waterproofing ability. Additionally, make sure the battery compartment cover is firmly fastened after the battery is inserted. Note: If the cover is properly mounted, the orange marks on its bottom will not be visible.

2. Check whether the USB-C port cover is stuck with any foreign objects, and ensure that the Lens Protective Cover has been tightened.

3. Make sure that the Lens Protective Cover is intact. If it is damaged, please purchase a new one and replace it. Check the Lens Protective Cover and the surrounding areas of the lens for foreign objects, as foreign objects may damage the Lens Protective Cover and lens, and affect the waterproof performance of the camera. Before going into the water, please check whether the Lens Protective Cover is tightened, and make sure that the rubber gasket at the bottom of the lens threaded ring has not fallen off.

4. The camera is not waterproof without the battery compartment cover, USB-C Port Cover, and Lens Protective Cover. Also, it is not waterproof when used with the 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 waterproof before jumping into water.

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


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 it 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 affect 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 dry and soft cloth.

4. 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 high temperatures can lead to a fire 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 affected if the battery is not used for an extended period.

4. Fully charge and discharge the battery at least once every three months to ensure the performance of the battery.

5. Remove the battery from Osmo Action 4 and store the battery in the Multifunctional Battery Case when stored for an extended period.


DJI Care Service Plan

DJI Care Refresh is a comprehensive and reliable protection plan that provides DJI products with coverage for a range of accidental damages such as collision, water damage, misshapen, and natural wear.


This part walks you through details of DJI Care Refresh, including the applicable scenarios, purchase conditions, benefit descriptions, and purchase channels.

· Click here (DJI Care Refresh Purchase Guide) to know more if you have not yet purchased a service plan.

Consult the content below for a step-by-step guide to activating, binding, and using your service plan, as well as the replacement fees.

· Click here (Using DJI Care Refresh Service Plans) to know more if you have already purchased a service plan.


For more tutorials on Osmo Action 4, click to enter Academy or download the manuals.