The Nokia Lumia was a series of smartphones developed by Nokia that ran on the Windows Phone operating system. Launched in 2011, these devices were known for their vibrant designs, high-quality cameras, and user-friendly interface. The Lumia line aimed to provide a unique experience with features like live tiles and integration with Microsoft services. The Lumia series included various models, such as the Lumia 520 and Lumia 1020, catering to different market segments. Despite their innovative features, the Lumia smartphones struggled to compete with other platforms like Android and iOS, leading to a decline in popularity and eventual discontinuation.