How Do You Set a Video as Live Wallpaper on iPhone?
Understand the Live Photo workflow for turning a video into an animated iPhone Lock Screen wallpaper.
An iPhone does not use an ordinary MP4 as a continuously running Home Screen background. The usual method is to convert a short video into a Live Photo, then select that Live Photo as the Lock Screen wallpaper. Motion support depends on the iPhone model, iOS version, and the way the Live Photo was created.
Convert the video to a Live Photo
Save the video to the Photos app. Use a reputable video-to-Live-Photo converter from the App Store, choose a short section, and export it as a Live Photo. Keep the subject within the center of the vertical frame so the clock and widgets do not cover it.
Then open Settings > Wallpaper > Add New Wallpaper > Photos and select the Live Photo. Make sure the Live Photo motion control is enabled in the preview. Adjust the crop, check the clock area, and add the wallpaper. Choose a separate Home Screen image if you do not want the paired still version there.
On supported versions, the animation plays as part of the Lock Screen experience. It is not the same as an endlessly looping desktop video. iOS controls when and how motion appears to protect battery life and preserve Lock Screen gestures.
Why a converted video may not animate
If the preview says motion is unsupported, test a Live Photo captured by the iPhone camera. If the camera file works, the converter probably created incomplete metadata or an unsupported duration. Export the original video again without editing the resulting Live Photo in Photos; some edits can break the relationship between its still image and motion component.
Also check Settings > Accessibility > Motion > Reduce Motion. System accessibility and power settings can reduce animation. Older iPhone models do not support every recent wallpaper effect, even if they can capture Live Photos.
A landscape 3840x2160 wallpaper needs a heavy crop on a vertical iPhone. Convert a copy rather than the purchased master. Crop to 9:16, select the useful region, and export at a phone-appropriate resolution. This preserves the original file for desktop use and avoids repeatedly recompressing it.
Pick the right source file
Start from the H.264 MP4, not a ProRes 4444 alpha MOV. The converter only needs an ordinary visible video. ProRes files are far larger, and an alpha channel does not turn into a transparent iPhone Lock Screen. If your source contains transparent HUD graphics, composite them over a chosen background in an editor first, then export a normal video for conversion.
The Lock Screen compatibility guide explains how iPhone behavior differs from Android, Windows, and macOS. Those differences are worth checking before you buy or download a file specifically for one device.
Keep expectations realistic
An app cannot override iOS and run arbitrary code behind the Home Screen. Be cautious of listings that promise permanent video playback everywhere or request unrelated permissions. A legitimate converter creates a Live Photo; iOS remains responsible for applying and playing it.
Preview the final wallpaper with your real clock style and widgets. A striking HUD can become unreadable when its focal point sits beneath notifications, so composition matters as much as technical compatibility.