Google Now Launcher was shipped by default on the Nexus 5 and was unavailable in Android 4.4 updates for any other Nexus device .
Until 26 February 2014 , when it was released on Google Play Store for selected Android 4.4 devices , Google Now Launcher was exclusively shipped by default on the Nexus 5 , and was not enabled in Android 4.4 updates for any other Nexus device .
Nexus 5