How to Set a Live Wallpaper on the iPhone Duo

Static wallpapers are the default, but a phone with two screens is a good place for a little motion. The catch is that iOS does not accept a video file as a wallpaper directly. To get movement on your lock screen you need a Live Photo, and the file you download here is an MP4 loop. This guide connects the two: what a live wallpaper actually is on iOS, how to convert a clip, and how to set it on a folding phone.

What "live wallpaper" means on iOS

On Android, a live wallpaper is a moving background that plays behind the home screen. iOS works differently. What Apple calls a live wallpaper is a Live Photo set as the lock screen background. It shows a still frame most of the time and plays the motion when you press and hold the lock screen, or when the screen wakes in some configurations.

The practical consequence is that you cannot drag an MP4 onto the wallpaper picker and expect it to loop. The video has to be wrapped into the Live Photo format first, which is a short video bundled with a still image and some metadata.

Why live wallpapers are a lock-screen feature

Because a Live Photo animates on interaction rather than continuously, it belongs on the lock screen. The home screen and the app grid expect a static image, and a constantly moving background would make icons hard to read and drain the battery for no benefit. So the flow is always: convert the clip, then set it as the lock screen wallpaper.

Turning an MP4 loop into a Live Photo

You have two routes. Both end with a Live Photo saved to your Photos library, ready to be set as a wallpaper.

Option 1: a conversion app

The simplest approach is an app that converts video to Live Photo. Search the App Store for a Live Photo maker or "video to Live Photo" converter, import your MP4, and export. Look for one that lets you trim the clip, because live wallpapers are short by design — a few seconds is plenty.

A few things to check in the app:

Length. Keep it short. A 3–5 second loop converts cleanly and plays well.
A still frame. Most apps let you pick which frame becomes the resting image. Choose one that looks good on its own, since that is what you will see most of the time.
No watermark. Some free converters add one; a logo over your lock screen is not worth it.

Option 2: do it on a computer

If you would rather avoid an app, desktop tools can assemble the same Live Photo package, which you then transfer to the phone through Photos or AirDrop. This is more steps, but it gives you precise control over length, resolution and the still frame.

Either way, the goal is the same: a Live Photo in your library, not an MP4 in Files.

Setting it on the iPhone Duo

Once the Live Photo is in Photos:

Open Settings → Wallpaper, or long-press the lock screen and choose to customise it.
Select the Live Photo you made.
Position and scale it. Remember that a Live Photo set on the lock screen shows the still frame most of the time, so frame it for the still.
Confirm, and choose whether to set it for the lock screen, the home screen, or both.

On a folding phone, decide which screen you want to animate. The cover screen is the one you see when the phone is closed, so a short ambient loop can look good there. The inner display is used more actively, and a moving background can be distracting while you work — many people keep a still image there and put the motion on the cover screen.

Choosing or making a loop

Our live wallpaper section publishes short MP4 loops built around the idea of the fold — a night sky, a slow light drift, a clip that travels from the cover screen to the inner display. Each downloads as a file, with no app and no sign-up, and each one is short enough to convert cleanly.

If you are recording your own, keep these guidelines in mind:

Shoot or render in landscape for the inner display and portrait for the cover screen, matching the screen you will set it on.
Keep motion slow. Fast cuts look like a video playing rather than a wallpaper.
Avoid hard cuts. A seamless loop feels like a living background; a jump feels like a bug.
Keep the file small. Live Photos are embedded in your library, so a heavy clip wastes space and slows the conversion.

Battery and practicality

A Live Photo only animates when you ask it to, so it costs far less than a continuously playing video. If you want the smallest possible footprint, use the loop on the cover screen and keep a still image on the inner display. If your phone supports an always-on display, a mostly dark wallpaper behind it also keeps the lock screen calm while the clock stays legible — the same principle as our dark wallpaper set.

Frequently asked questions

Can I set an MP4 directly as a wallpaper?

Not on iOS. You need a Live Photo. Convert the MP4 first, then set the resulting Live Photo as the lock screen wallpaper.

Will the loop play forever?

No. The Live Photo plays its motion when you press and hold, or when the screen wakes in supported configurations. It is not a continuous loop, and that is what keeps it light on battery.

Does the animation work on both screens of the Duo?

You can set a Live Photo on either screen, subject to how the system handles that screen. In practice the cover screen is the better home for motion, because it is the one you glance at.

Next steps

Download a loop from the live wallpaper library, convert it with an app of your choice, and set it on the cover screen. If you would rather start with a still image, the wallpaper catalog has matched Cover and Inner pairs ready to download, and the size guide explains the exact dimensions if you are preparing your own files.