As of November 2009, over 8 million units had been sold. Nokia 5800 XpressMusic has the following specifications:    From firmware version 20.0.012 onwards, the 5800's CPU clock was increased from 369 MHz to 434 MHz, matching the N97 specification. However, improved overall performance can be observed since firmware version 30. On 13 January 2010, Nokia released a major firmware update, version 40.0.005. The update includes bug fixes, speed improvements and new features. The most visible are kinetic scrolling to all menus (except the main and applications menus) and an improved home screen that was first introduced on the Nokia 5530. This software update also saw the removal of alphanumeric keypad in landscape view during text input, which was replaced by a full QWERTY keyboard. The new home screen provides a contacts carousel, with up to 20 contacts and program shortcuts on screen at the same time. There is a change on option selecting in every menus, but hard to notice; if one selects and holds on that selection, it will be in white, but normal colours when selecting an option is still being red like in v20. On 19 April 2010, firmware version 50.0.005 was released. This new major update brought some new features available in Nokia N97, such as an upgrade to the existing web browser to version 7.2 and full kinetic scrolling and auto-full screen while browsing the web; a new music player with mini-album art in the song list and the album list, initial letter filtering of track titles in the music player while scrolling using the scroll-bar. As a result, the search function was removed from the music player. A new application called Ovi Sync was installed and the Nokia Music Store received a revamped user interface and was renamed to "Ovi Music". In some regions, Quick Office 4.2.374 is integrated with full free license. Search application's icon was changed and a few more minor updates for better touch sensitivity and tweaks for faster operation of the phone are present. And a little update to the color, the option you select is in silver, but when hold an option, it is still being white like v40. There is also the new feature, one-touch dialling. Firmware 51.0.006 appeared in August 2010 and contained minor bug fixes and updates to various applications. RDS function, however, remains dysfunctional since version 40.0.005. The web browser has lost its ability to re-flow the text when the page is enlarged.