You can now get an unlocked Nokia Lumia 830 device for just $249 from Microsoft Store in the US. Also, you can get Lumia 830 + Fitbit Flex bundle for just $199 instead of $399. Go to below links and use promo code as Lumia830nt9fvw.
Featuring a powerful quad-core processor, crisp 5-inch HD display, and 16GB of memory, the Lumia 830 is ready for your crazy connected lifestyle. It boasts a sleek aluminum design which gives it a cool metal look and feel, while its 10MP PureView camera with OIS and Carl Zeiss optics make this one seriously good shooter. And the three built-in microphones ensure the sound you record is as good as your video.
Update: Deal is no longer available.