The phone was unveiled by Stephen Elop at the 2014 Mobile World Congress, Barcelona on 24 February 2014.6 Contrary to previous leaks, two variants, Nokia X7 and Nokia X+8 were released, with the Nokia X+ having 768 MB of RAM, as opposed to 512 MB of RAM, as well as with a microSD card included in the box.9
A third phone, the Nokia XL, was announced, with a larger screen, front-facing camera, rear flash, and longer battery runtime.10
Very soon after release, a developer had rooted the device, and enabled the installation of Google's apps and services.11
The Nokia X was heavily criticized for not having a home button;12 this was later addressed with the Nokia X2.
In an interview with Forbes, former HMD Global CEO Arto Nummela stated that analysis showed that the Nokia X series became surprisingly popular with users of high end Samsung and Apple smartphone devices, despite the fact that it was a mid to low end device family.13
Warren, Tom (17 July 2014). "Microsoft kills off its Nokia Android phones | The Verge". The Verge. Retrieved 5 August 2014. https://www.theverge.com/2014/7/17/5911909/microsoft-kills-off-its-nokia-android-phones ↩
Blass, Evan (23 January 2014). "Twitter / evleaks: Project Normandy = Nokia X". Twitter. Retrieved 5 August 2014. https://twitter.com/evleaks/status/426502642538270721 ↩
Blass, Evan (11 December 2013). "Twitter / evleaks: FYI (and in case you hadn't ..." Twitter. Retrieved 5 August 2014. https://twitter.com/evleaks/status/410858492677746688 ↩
Thurrott, Paul (12 December 2013). "Nokia Reportedly Eyeing Android as a Replacement for Asha | Paul Thurrotts WinInfo content from Windows IT Pro". Retrieved 5 August 2014. http://windowsitpro.com/paul-thurrotts-wininfo/nokia-reportedly-eyeing-android-replacement-asha ↩
Warren, Tom (13 September 2013). "Nuclear options: Microsoft was testing Surface Phone while Nokia experimented with Android | The Verge". The Verge. Retrieved 5 August 2014. https://www.theverge.com/2013/9/13/4728184/microsoft-surface-phone-testing-while-nokia-experimented-with-android ↩
Lehtiniitty, Markus (2014-02-24). "Tässä ovat Nokian X-kolmikon ominaisuudet ja erot" [Here are the features and the differences between Nokia's X trio]. Mobiili.fi. Retrieved 2018-05-08. https://mobiili.fi/2014/02/24/tassa-ovat-nokian-x-kolmikon-ominaisuudet-ja-erot/ ↩
Global Change country. "X Dual SIM - Affordable dual SIM smartphone with Android apps". Nokia. Retrieved 2014-02-25. http://www.nokia.com/global/products/phone/nokia-x/ ↩
Global Change country. "X+ Dual SIM - Affordable dual SIM smartphone with Android apps". Nokia. Retrieved 2014-02-25. http://www.nokia.com/global/products/phone/nokia-x-plus/ ↩
Brandom, Russell (2013-09-30). "This is Nokia X: Android and Windows Phone collide". The Verge. Retrieved 2014-02-24. https://www.theverge.com/2014/2/24/5440498/nokia-x-android-phone-hands-on ↩
"Xtraordinarily xcellent: the Nokia X family - Nokia Conversations : the official Nokia blog". Conversations.nokia.com. 2013-11-21. Archived from the original on 2014-02-24. Retrieved 2014-02-24. https://web.archive.org/web/20140224114348/http://conversations.nokia.com/2014/02/24/nokia-x-family/ ↩
Nokia X rooted and Google apps installed; Android is Android - AndroidCentral http://www.androidcentral.com/nokia-x-rooted-and-google-apps-installed-android-android ↩
Exclusive: Next-gen Nokia X series smartphones to get a dedicated home button | Latest Tech News, Video & Photo Reviews at BGR India http://www.bgr.in/manufacturers/nokia/exclusive-next-gen-nokia-x-series-smartphones-to-get-a-dedicated-home-button/ ↩
"Finland's Impossible Dream is Happening: Meeting the Startup Behind Nokia's Smartphone Return". Forbes. https://www.forbes.com/sites/ewanspence/2016/12/04/hmd-nokia-smartphone-android-google-play/#56cf97897a91 ↩