The Nexus 4 (codenamed Mako) is a smartphone co-developed by Google and LG Electronics that runs the Android operating system. It is the fourth smartphone in the Google Nexus product family, unveiled on October 29, 2012, and released on November 13, 2012, and succeeded the Samsung-manufactured Galaxy Nexus. As with other Nexus devices, the Nexus 4 was sold unlocked through Google Play, but was also retailed by wireless carriers.
Based upon the hardware of the LG Optimus G, the Nexus 4 was distinguished from its predecessor by a quad-core Snapdragon S4 Pro processor, an 8 megapixel rear camera and 1.3 megapixel front camera which use the Sony BSI sensor, Qi wireless charging, and the introduction of version 4.2 ("Jelly Bean") of Android – an update to the operating system which introduced: 360° spherical photo stitching called "Photo Sphere"; a quick settings menu; widgets on the lock screen; gesture typing; and an updated version of Google Now.
The Nexus 4 was met with generally positive reviews from critics, who praised the quality and performance of the Nexus 4's hardware. It was also the first Google Nexus device to be released at a relatively lower outright price in comparison to other high-end/flagship smartphones, leading to unexpected high demand and supply shortages. However, the device was criticized for its lack of LTE support, and its lack of a user-removable battery which its predecessor, the Galaxy Nexus, included.