Nokia has launched smartphones based on the Windows Phone 7.5 operating system, the Nokia Lumia 800 and Lumia 710.
The announcement follows Nokia and Microsoft's strategic partnership in February. Nokia adopted Windows Phone as its primary smartphone strategy. All Nokia's smartphones will now use Windows Phone 7.5, also dubbed Mango.
"Eight months ago, we shared our new strategy and today we are demonstrating clear progress of this strategy in action. We're driving innovation throughout our entire portfolio, from new smartphone experiences to ever smarter mobile phones," said Stephen Elop, Nokia President and CEO.
"From the Nokia Lumia 800 to the Nokia Asha 201, we are bringing compelling new products to the market faster than ever before. I'm incredibly proud of these new devices - and the people of Nokia who have made this happen," Elop added.
Pete Cunningham, principal analyst at Canalys, praised the company for having improved its previous operating system Symbian and differentiate itself with Windows Phone 7.5 over the last eight months.
But despite seeing an 8% increase in standard handset sales in its third quarter, Nokia recently posted a loss of €151m (£132m) in its latest financial results.
The Lumia range is expected to be available in the UK in November.