The Nexus 5 is the first smartphone to ship with Android 4.4 KitKat, the latest release of the operating system. As with all Nexus devices, the phone includes the stock build of the operating system, without any additional UI skinning.
The Nexus 5 also includes the new Photos app that allows you to view and edit local and Google+ images.Google also includes its other apps including Drive, Keep, Play Games, Play Movies, Play Movies, Play Books, Play Newsstand and Quickoffice for creating and editing documents, spreadsheets and presentations.The Nexus 5 sports an 8-megapixel rear camera with Optical Image Stabilisation, and a 1.3-megapixel front facing camera.
The phone features the stock Android 4.4 Camera app with 4 default shooting modes - Still, Video, Panorama and Photo sphere(360-degree).The 1.3-megapixel front shooter does a decent job for video calling and taking self clicks. It supports 720p video capture.The Nexus 5 comes with top of the line hardware(at this point in time), as it is powered by a quad-core 2.26GHz Qualcomm Snapdragon 800 processor with 2GB of RAM, and an Adreno 330 chip for processing graphics. Our review unit had 32GB of built-in storage(a 16GB variant is also available), out of which 26.7GB is available to the user. The phone doesn’t offer a microSD card slot for expandable storage.