Google Nexus is a line of Smartphone that uses Android operating system produced by Google in conjunction with several manufactures. It is one of the first Smartphone devices to receive updates to the operating system. Nexus series of cell phone that comprises of devices do not have manufacture or wireless carrier modification to Android and have unlock able boot loader to allow further development and end user modification.
Nexus One: It is the first Nexus phone manufactured b HTC and released in Jan 2010. Initially it was using Android Éclair OS and updated in May 2010 to be first phone with Android 2.2 Froyo. Later, it was updated to Android 2.3 Gingerbread.
Nexus S: The Nexus S, manufactured by Samsung and was released into the market in December 2010 to coincide with the Android 2.3 Gingerbread release. Later, it updated to Android 4.0 Ice Cream Sandwich in December 2011 and it was comprised of more variations later being updated to Android 4.1 Jelly Bean in July 2012.
Galaxy Nexus: The Galaxy Nexus was manufactured by Samsung, released in November 2011 to updates its OS to Android 4.0 Ice Cream Sandwich. Later, it upgraded to Android 4.1 Jelly Bean in July 2012. In Brazil, this device is known as Galaxy X due to trademark on the “Nexus” brand.
Nexus 4: The Nexus 4 was manufactured by LG, released on November 2012, that is the first phone to use Android 4.2 Jelly Bean updated version. It is comprise of corning Gorilla Glass 2 touch screen with a 1280 * 768 pixel resolution, 1.5 GHz quad-core Krait processor.
Nexus 5: The Nexus 5 has been manufactured b LG and is expected for release in October 2013. It is the first Smartphone to use Android 4.4 KitKat. It is featured with Corning Gorilla Glass 2 touch screen with 1920 * 1080-pixel resolution.
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