Google's Nexus 5 tastes sweet with KitKat EACH year Google produces a smartphone that showcases what Android can be without the bells and whistles of manufacturer add-ons, such as Samsung Touchwiz and HTC Sense. It's usually the first phone to sport its latest Android version. This year it's the Nexus 5 with the Android KitKat operating system, a name that should bring sweet success to Google and confectioner Nestle. Last week, Nestle sold its Jenny Craig weight management business here, which is just as well. It seems contradictory to go to a Nestle weigh-in with an Android KitKat in your pocket.