So Many Devices
IPhone 6, Kindle Fire table, Android phone – sites need to look great on all devices. Are you curious how your site measures up? Use this handy link to see how responsive your site is on multiple devices Test my Site. Responsive designed sites are fluidly designed, they will work on almost every device as they are designed to respond to window sizes in a flexible way. Odds are your site can be easily adapted for a more responsive performance.
WordPress and Mobile Design
Most new WordPress themes are responsive, or mobile-friendly. If you are purchasing a new theme make sure that this feature is included and check the theme demo from your phone to be sure. I’ve found that more popular themes have included responsive features in their updates. For older themes or theme that have been abandoned by their developer there are several options. You can add a plugin that incorporates mobile or add some custom css code for smaller devices. The best option would be to upgrade to a new theme as it probably means your theme is outdated and unsupported and thus not only stale but a possible security risk too.
GOOGLE and Mobile Search
Beginning on April 21st, Google will assess sites responsiveness and give higher visibility for mobile-friendly sites in search results from phones. They have provided this link to test your site and suggest ways to improve your mobile-friendly performance.
Google Mobile Friendly Test