Lumia 635 on AT&T

At the moment, the just-released Windows 10 preview for phones supports just six low-to-mid end Lumia devices. As luck would have it, Amazon is running a sale on the AT&T Lumia 635 for just $49.84 and it happens to be one of those lucky six Lumia Windows 10 preview devices.

Yes, you can get this 4.5-inch smartphone that doesn't need a contract for just under $50. Once you have it in your hands, you can download and install the Windows 10 for phone technical preview to try out all the new features. As we reported before, higher end Lumia devices can't current use this first preview build but Microsoft plans to add more devices to their Windows 10 list in the near future.

Update: We have also been told that the Lumia 635 is also available at Walmart locations for $50 as well

Source: Amazon; Thanks to Justin Angel for the tip!