andreu

This plugin automatically adds HTML anchor tags to plain text links and email addresses embedded in the content of posts and pages (WordPress already does this by default for comments).
In the plugin configuration page, you can choose to open the links in a new window or in the current window.

AutoLink

This plugin automatically adds HTML anchor tags to plain text links and email addresses embedded in the content of posts and pages.

Phuc Pham

The library is from http://mobiledetect.net/. The BODY tag needs to use the body_class() function. The values: desktop, handheld, mobile, tablet, ios, android. See the screen shots for more.
Mobile_Detect.php version 2.8.20

Mobile Detect For CSS

The library is from http://mobiledetect.net/. The BODY tag needs to use the body_class() function. The values: desktop, handheld, mobile, tablet, ios, …

AutoLink vs Mobile Detect For CSS