Lumia Nokia phones, the handset maker first devices to run Microsoft's Windows Phone operating system, a product of an agreement between Nokia and Microsoft announced in February and signed in April, which is reportedly worth billions of dollars.
At the top is magnetically held flap that hides a microUSB port. Beside it is a "push and push" space that houses MicroSim and a 3.5 mm port. The speaker grille and buttons for power, volume and camera shutter are the only other "openings".
