Nokia, on Wednesday announced the three Lumia smartphones, Nokia Lumia 630, Lumia 635 and the flagship Lumia 930 based on Windows Phone 8.1 OS and a series of exclusive Nokia features  at San Francisco, U.S.A. Nokia confirmed that Windows Phone 8.1 OS is scheduled to be available across the entire Lumia Windows Phone 8 portfolio as an over-the-air update called Lumia Cyan.

Accompanying the Windows Phone 8.1 OS over-the-air update will be new unique experiences for Lumia that further enhance Nokia's leadership in imaging. This includes enhancements to the camera roll and Creative Studio, as well as an improved Nokia Storyteller app, for sharing stories as a video slideshow on social networks.

Nokia Lumia 630 and Lumia 635

The Nokia Lumia 630 and Nokia Lumia 635 provide an uncompromised Windows Phone 8.1 experience and It is powered by Snapdragon quad core processor providing a faster social experience with Word Flow and social apps like WhatsApp and WeChat. A unique colorful design with changeable shells and 4.5" ClearBlack screen delivering a great entertainment experience with apps and games including Asphalt 8 and Vimeo.

Smartphone will be available in three variants, including the Lumia 630 in 3G single SIM and the first Lumia with 3G Dual SIM; plus the speedy Lumia 635 in 4G/LTE. Users can experiences as high-end Lumia smartphones including SensorCore with Bing Health and Fitness, Microsoft Office, Nokia Camera, free Nokia MixRadio streaming, and free Global maps and navigation from HERE, which save time and money.

The Nokia Lumia 630 is expected to roll out in May, beginning with Asia, India/Middle East, South America and Europe, at USD 159 for the single-sim variant, and USD 169 for the dual-sim variant before taxes and subsidies. The Nokia Lumia 635 is expected to be broadly available, including in the US starting in this summer, from USD 189 before taxes and subsidies.

                         

Nokia Lumia 930 flagship smartphone

The Nokia Lumia 930 is the flagship embodiment of Windows Phone 8.1. A stunning design combining elegant metal and vibrant polycarbonate with a 5-inch ClearBlack screen for unmatched viewing of Vyclone, Netflix and Xbox Video, even in bright daylight. It is powered by 2.2GHz Snapdragon quad-core processor, delivering more from content like apps, games, the Internet and integrated Microsoft services like OneDrive and Microsoft Office. - 

The Lumia 930 flagship smartphone also comes with 20 megapixel PureView camera with ZEISS optics and advanced Rich Recording, delivering a flawless video and imaging experience with new Living Images innovation.

The Nokia Lumia 930 is expected to roll out globally in June starting with Europe, Asia, Middle East and India, available from USD 599 before taxes and subsidies.