Long: 4K HD Wallpapers and Backgrounds is a free app with a wide range of HD Live Backgrounds, 4K (UHD | Ultra HD) and Full HD (High Definition | FHD+) Wallpapers and Backgrounds.
Static Backgrounds of 1080x1920 px (Full HD 1080p) and 2160x3840 px are included in the app (Ultra HD 4K). This app contains thousands of Live Wallpapers that can be used on the Home Screen and Lock