Amit Agarwal

Sitemaps are a way to tell Google, Bing and other search engines about web pages, images and video content on your site that they may otherwise not discover.
The Mobile Sitemap plugin will generate a sitemap for your WordPress blog with URLs that serve mobile web content.
Do I need a XML Mobile Sitemap?
According to Matt Cutts of Google, you may not need a separate Mobile Sitemap if your WordPress blog is using <a href="http://www.labnol.org/internet/responsive-web-design-faq/21361/" rel="nofollow ugc">Responsive Web Design</a> where the same page is served to both desktop and mobile screens. Everyone else may need one.
It is also recommended that you add a rel=canonical tag in your mobile pages that point to the original URL.
Related WordPress plugins:
<ul>
<li><a href="https://wordpress.org/extend/plugins/google-image-sitemap/" rel="ugc">Google XML Sitemap for Images</a></li>
<li><a href="https://wordpress.org/extend/plugins/xml-sitemaps-for-videos/" rel="ugc">Google XML Sitemap for Videos</a></li>
</ul>
WordPress Resources:
<ul>
<li><a href="http://www.labnol.org/software/must-have-wordpress-plugins/14034/" rel="nofollow ugc">Must have WordPress Plug-ins</a></li>
<li><a href="http://www.labnol.org/internet/improve-wordpress-security/24639/" rel="nofollow ugc">Improving WordPress Security</a></li>
</ul>
The Sitemap plugins are written by <a href="http://www.labnol.org/about/" title="Amit Agarwal" rel="nofollow ugc">Amit Agarwal</a> of <a href="http://www.labnol.org/" title="Tech Blog" rel="nofollow ugc">Digital Inspiration</a>. For support, you can leave a comment in the <a href="https://wordpress.org/support/plugin/google-mobile-sitemap" rel="ugc">WordPress forum</a> or send a tweet to <a href="http://twitter.com/labnol" rel="nofollow ugc">@labnol</a>.

Google XML Sitemap for Mobile

This WordPress plugin will generate an XML Mobile Sitemap for your WordPress blog.

JS Morisset

Extends the WordPress Sitemaps XML:
Improve the WordPress sitemaps XML with article modification times, alternate language URLs, news sitemaps, images sitemaps, video sitemaps (requires WPSSO Core Premium for video details) and more.

Include Alternate Languages:
Include <a href="https://developers.google.com/search/docs/advanced/crawling/localized-versions#sitemap" rel="nofollow ugc">localized pages for Google</a> (ie. alternate language URLs) from PolyLang and WMPL.
Include Images and Videos:
Optionally include images and videos in the WordPress sitemaps XML. Note that video information requires the WPSSO Core Premium plugin for video details.
Include Post Type Archives:
Include missing post type archive pages in WordPress sitemaps (like the WooCommerce shop page and The Events Calendar events page).
Select Post Types and Taxonomies:
Optionally include or exclude post types and taxonomies from the WordPress sitemaps XML.
Exclude Noindex and Redirected URLs:
Exclude noindex and redirected posts, pages, custom post types, taxonomies (categories, tags, etc.), and user profiles pages from the WordPress sitemaps XML.
<h3>WPSSO Core Required</h3>
WPSSO WP Sitemaps XML is an add-on for the <a href="https://wordpress.org/plugins/wpsso/" rel="ugc">WPSSO Core plugin</a>, which creates extensive and complete structured data to present your content at its best for social sites and search results – no matter how URLs are shared, reshared, messaged, posted, embedded, or crawled.

WPSSO WP Sitemaps XML with News, Image, and Video Sitemap

Extend the WordPress sitemaps XML with article modification times, alternate languages, news sitemaps, image sitemaps, and video sitemaps.

Google XML Sitemap for Mobile vs WPSSO WP Sitemaps XML with News, Image, and Video Sitemap