iPhone wallpapers may appear zoomed because of features like Perspective Zoom and automatic cropping. When you set a wallpaper, iOS adjusts the image to fit the screen ratio while allowing motion effects. If the image dimensions are too small or not optimized for your iPhone model, parts of the wallpaper can get cut off. Using high-resolution vertical images designed specifically for iPhones helps prevent unwanted zooming and keeps important details visible on both the lock screen and home screen.