page_title: Microsoft Mobile
section_title: Series 40
hierarchical_section_title: Microsoft Mobile / Hardware products / Series 40
caption_attribution_description: English: mobile phone Nokia 6300
context_page_description: Microsoft Mobile was a subsidiary of Microsoft involved in the development and manufacturing of mobile phones. Based in Espoo, Finland, it was established in 2014 following the acquisition of Nokia's Devices and Services division by Microsoft in a deal valued at €5.4 billion, which was completed in April 2014. Nokia's then-CEO, Stephen Elop, joined Microsoft as president of its Devices division following the acquisition, and the acquisition was part of Steve Ballmer's strategy to turn Microsoft into a "devices and services" company. Under a 10-year licensing agreement, Microsoft Mobile held rights to sell feature phones running the S30+ platform under the Nokia brand.
  Originally Microsoft had established a major partnership with Nokia in 2011, in which the company exclusively produced smartphones using the Windows Phone platform, and promoted Microsoft services on its feature phone products. Microsoft also licensed Nokia Maps data for its own mapping services.
context_section_description: Series 40, or S40, was a software platform and user interface (UI) on Nokia's broad range of mid-tier feature phones, as well as on some of the Vertu line of luxury phones. It was one of the world's most widely used mobile phone platforms. On 25 January 2012, Nokia announced that the company had sold over 1.5 billion Series 40 devices. Although S40 has more features than the Series 30 platform, it was not used for smartphones, where Nokia primarily used Windows Phone and, until 2012, Symbian. However, in 2012 and 2013, several Series 40 phones from the Asha line, such as the 308, 309, and 311, were advertised as "smartphones" although they did not support smartphone features like multitasking or a full-fledged HTML browser. In July 2014, it was announced that Microsoft would discontinue Series 40.
caption: Nokia 6300
exif: {}