The phrase describes digital imagery featuring the character Goku from the Dragon Ball franchise, optimized for display as backgrounds on smartphones with a 4K resolution screen. These images are intended to enhance the visual appeal of a mobile device by showcasing a popular anime character in high definition.
Utilizing high-resolution media on compatible devices provides a crisper, more detailed visual experience. The selection of such imagery allows individuals to personalize their technology with content reflecting their interests. The prevalence of fan-generated and officially distributed character art makes for a diverse range of available options.