WP touch Pro

WPtouch is a mobile plugin for WordPress that automatically adds a simple and elegant mobile theme for mobile visitors to your WordPress website. Recommended by Google, it will instantly enable a mobile-friendly version of your website that passes the Google Mobile test, and ensure your SEO rankings do not drop due to not having a mobile-friendly website. For more information about using WPtouch to achieve Google mobile-friendly status,

The WPtouch administration panel and WordPress Customizer allow you to customize many aspects of its appearance, and deliver a fast, user-friendly and stylish version of your site to your mobile visitors, without modifying a single bit of code. Your regular desktop theme is left intact, and will continue to show for your non-mobile visitors.