An image sitemap is for images. Having an image sitemap helps images get featured in Google Image Search
Similar to the Image Sitemap, a Video Sitemap helps videos get featured in SERPs It helps bots better understand video content
This sitemap is compulsory for news websites Having a news sitemap helps articles get featured in the “News Section” of Google SERPs
A Mobile Sitemap is required if you have a specially formatted version designed for mobile devices