How to Use an Action Camera? | First-Time Setup

Using an action camera means charging the battery, inserting a microSD card, and pressing the power button to start recording.

Getting started with your first action camera is simpler than it looks. Whether you just unboxed a DJI Osmo Action or a Sony model, the core workflow stays the same: power it on, insert a compatible microSD card, charge the battery, mount it securely, and start recording. Before you capture your first clip, learn the basics that every action camera owner needs to know.

What Do You Need To Set Up An Action Camera?

Every action camera needs the same few things before you can record. Most models ship with the camera body, a rechargeable battery, a USB charging cable, and basic mounting hardware. You will almost always need to provide your own microSD card — DJI’s Osmo Action 4 has no built-in storage and requires a microSD card rated for the camera’s speed demands.

The full checklist looks like this:

• Charge the battery fully before your first shoot
• Insert a compatible microSD card — DJI’s Osmo Action 4 supports cards up to 512 GB
• Close all compartment covers to maintain waterproofing
• Mount the camera securely to your helmet, chest strap, or handlebar
• Power it on and choose a recording mode

Newer models add conveniences.

How Do You Power An Action Camera And Start Recording?

Charging and powering an action camera takes less than a minute once you know the routine. The DJI Osmo Action 5 Pro beginner guide tells you to install the battery, connect a charger to the USB-C port with the included cable, and run the DJI Mimo app to complete setup.

Here’s the basic sequence that works across most models:

1. Insert the battery — slide it into the compartment until it clicks
2. Charge via USB-C — the Osmo Action 4’s 1770 mAh battery delivers about 160 minutes of operating time
3. Insert the microSD card — push it in until it locks, then close the compartment
4. Press and hold the Power/Mode button to turn the camera on
5. Tap the shutter button to start recording — the screen shows a timer when you’re live

Your camera screen confirms you’re recording with a red dot and elapsed-time counter. Most action cameras also have a status LED that blinks while recording, which acts as your success cue when the camera is mounted out of sight.

Pairing With The Companion App And Adjusting Settings

The companion app extends your action camera’s tiny screen into something you can actually navigate. DJI’s approach, described in the Osmo Action 5 Pro guide, involves running DJI Mimo on your phone and following the on-screen instructions to pair the camera over Wi-Fi.

Download the official app for your model — DJI Mimo for DJI cameras — then:

• Enable the camera’s Wi-Fi in its settings menu
• Connect your phone to the camera’s Wi-Fi network
• Open the app and tap the connect icon
• Use the live view to frame shots, change resolution, and start or stop recording
• Review and download media directly to your phone for quick sharing

Set your resolution before you shoot. A model like the Osmo Action 4 captures 4K video up to 120 fps with a 155° field of view, while the newer Osmo Action 6 goes up to 8K at 30 fps. Higher resolution and frame rates eat through storage and battery faster, so match the setting to what you actually need.

Waterproofing, Mounting, And Shooting Safely

Action cameras earn their name from their build, but waterproofing has limits you need to know.

Before recording near water, close the battery compartment cover, close the USB-C port cover, and tighten any lens cover — DJI’s Osmo Action 6 manual explicitly warns against hot springs, extreme underwater environments, and corrosive or unknown liquids.

For mounting, use the adhesive mounts or clamps that came with your camera. Clean the surface first, press the mount firmly for 30 seconds, and wait 24 hours before trusting it at speed. If you’re shooting on snow, you’ll want gear that handles cold — our action camera for snowboarding roundup covers models built for frigid conditions.

Sony owners can find model-specific help on Sony’s official Action Cam manuals page, where you select your model to access the full help guide.