WallpaperAccess offers a curated list of mobile-specific crops.

The Ultimate Spider-Man: Homecoming Wallpaper Guide for Your Phone

Peakpx provides various resolution options, including the specific 720x1280 format.

While many flagship phones have moved to higher resolutions, the remains a standard for many mid-range Android devices and older smartphones. Using a wallpaper specifically cropped to these dimensions ensures that the image doesn't look stretched or pixelated, keeping Tom Holland's Spider-Man looking sharp and vibrant. Top Wallpaper Choices