The Nexus One (codenamed HTC Passion) is Google's original flagship smartphone manufactured by Taiwan's HTC Corporation. It became available on January 5, 2010 and uses the Android open source mobile operating system. Features of the phone include the ability to transcribe voice to text, an additional microphone for dynamic noise suppression, and voice guided turn-by-turn navigation to drivers.
The device is sold SIM unlocked (not restricted to use on a single network provider). Google offered T-Mobile USA and AT&T versions of the phone online in the United States before closing the online store in July 2010. A version for use on Vodafone (European) networks was announced on April 26, 2010, available in the UK on April 30, 2010. On March 16, 2010, the Nexus One device became available on the Google web store for sale in Canada for use with most Canadian carriers. In May 2010 Google announced the closing of the web store, with the intention to distribute the phone through partners around the world.
The bootloader of the phone is unlockable, see below.
Apple targeted the Nexus One in a patent lawsuit against HTC, which was settled in December 2012.
Read more about Nexus One: History, Hardware, Software, Platform Development, Hacking, and Modification, Comparison With Other Phones, Reception, Support, Nexus S, See Also