A high-resolution image can still fit badly. Phones crop, scale and move wallpaper in different ways, while camera cutouts, widgets and interface layers occupy the most visible parts of the composition.
Start with shape, not pixel count
Compare the image’s width-to-height relationship with the phone screen. A close match limits unexpected cropping. Leave breathing room around the subject because lock-screen and home-screen previews may not use the exact same crop.
Protect the focal point
Keep faces, wing tips and delicate ornament away from the outer edge. A centered subject is not mandatory, but the most important detail should survive a modest crop from every side.
Apple’s layout guidance describes safe areas as protection from hardware and interface features. The same idea is useful when composing wallpaper even though the artwork itself is not an app interface.
Preview the actual screen
Use the device’s wallpaper preview before confirming the crop. Check both lock and home screens, then move the image rather than accepting the first automated placement.
- Check portrait crop.
- Check icon-heavy and icon-light pages.
- Confirm text and widgets remain legible.
- Keep the original file before making a device-specific crop.
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