Microsoft Lumia

Microsoft Lumia (previously the Nokia Lumia Series) is a range of mobile devices designed and marketed by Microsoft Mobile and previously by Nokia. Introduced in November 2011, the line was the result of a long-term partnership between Nokia and Microsoft—as such, all Lumia smartphones run the Windows Phone operating system. The Lumia name is derived from the partitive plural form of the word 'lumi', which means 'snow' in Finnish

On 3 September 2013, Microsoft announced its purchase of Nokia's mobile device business, with the deal closing on 25 April 2014. As a result, the Lumia line is now maintained by Microsoft Mobile. As part of the transition, Microsoft continued to use the Nokia brand on Lumia devices until October 2014, when it began to officially phase out the Nokia name in its promotion and production of smartphones in favor of Microsoft branding.

In November 2014, Microsoft announced the first Microsoft (non-Nokia) branded Lumia device, the Microsoft Lumia 535. The device was first released in India and soon followed by other countries in late 2014 and early 2015. Microsoft has since not released any new Lumia devices after the brand was discontinued in October 2017.

Numbering convention
The first digit is the device class (4XX ... 15XX, 25XX), the second the generation of device. If third digit is a "0" or a "5", it usually labels the release version within that generation. If the third digit is something other than a "0" or "5", or there is suffix at the end, then it designates a region-specific device.

Sales
Over 100 million units are sold as of Q2 2015.

Prototype Models
They were some (cancelled) prototype Lumia models and some of them have features that aren't available at none of retail devices.

Nokia Midas(RX-112)
This model was the first 3D Touch prototype model. It had Lumia 920 hardware and Lumia 1020 case.

Nokia McLaren/Lumia 1030
This model also have 3D Touch but more stable than Midas and it has this abilities:
 * keep the screen of the phone on whilst the user is holding the device
 * lock the rotation of the screen if the phone is held in a certain way
 * silence incoming calls by gripping the phone or waving a hand over the display
 * answer incoming calls by also waving a hand
 * mute the speakerphone by holding a hand over the lower half of the display (where the in-built microphone is located)
 * display additional UI elements only when a finger is close to the respective area of the display
 * adapt the user interface depending on how the user holds the device
 * provide gesture-based controls for games



Nokia Vega(RX-107)
Nokia Vega is a cancelled Windows RT tablet prototype.

Nokia Lumia 2020
Lumia 2020 is a cancelled Windows RT tablet prototype.

Nokia Hapanero(RX-130)
Nokia Hapanero is a engineering phone and it is used to test Windows 10 Mobile and some Windows Phone 8.1 builds. It has 2 versions.It has pen support like first Lumia 950 prototypes

Microsoft Lumia 960
Lumia 960 is the first model with aluminium case and front facing speakers.