 <p>Install Terminal Emulator from Play Store, open the application and type:</p> <p><code>getprop ro.build.version.release</code> you will get something like: <code>4.4.4</code> for KitKat.</p> <p>or <code>getprop ro.build.version.sdk</code> for getting the sdk version which will return <code>19</code></p>