LG
Optimus One P500

The Optimus One was developed closely with Google. It is believed to have been originally earmarked to be part of Google's Nexus series of direct-to-consumer devices. Google abandoned this approach in May 2010, which meant that its manufacturing partners were obliged to launch future Nexus devices under their own brands — for example, HTC's Evo 4G and Motorola's Droid Incredible.  The Optimus One was destined to be a mass-market Nexus phone and LG's close cooperation with Google on this competitively priced device was a key factor in getting it into the portfolios of 120 network operators in 90 countries. Although customisation of the Android operating system at the time was challenging, LG implemented some enhancements to the user interface, most notably the ability to categorise icons in the menu and the implementation of LG's own user interface for the camera. LG also pre-loaded several widgets, including the LG App Advisor, which recommended 10 applications suited to the device every two weeks. By November 2010 the LG Optimus One was the was the fastest selling mobile handset in the company’s history having hit one million units just 40 days after the phone’s initial launch. It had proved extremely popular with first-time smartphone buyers looking for capable device that was competitively priced against feature phones. By December 2010 it had sold two million units with over 1.3 milion units being sold in North America alone. LG expected the Optimus One to be its first 10 million-seller smartphone. It was available in wide range of colours including black, blue, purple, silver, titan and wine. It was known by a variety of different names around the world including the Optimus S (for US carrier Sprint), Optimus T (for US carrier T-Mobile) and Vortex (for US carrier Verizon).