Google is supposedly selling the Nexus 5 in different colors and just ahead of the announcement date (February 4) Evleaks on Twitter posted press render of a red coloured handset on January 31. This Nexus 5 will carry the same specs as the white and black versions and will reportedly run 4.4 KitKat out of the box but will be upgraded to the new 4.4.2 build through an over-the-air update that will appear when you power up the device.
Source: Cult of Android