If you're on the hunt for a budget-friendly Windows Phone, and also are looking to join a new cell phone carrier, then you might want to consider Cricket Wireless. The carrier is currently offering the Lumia 640 for less than $10 with a plan and activation (via Neowin.)
While the specs on this device are not nearly impressive as those on a higher end device such as a Lumia 950 XL or HP Elite x3, you can still expect some decent performance with the 1 GB of RAM on this device. The Lumia 640 features a beautiful 5-inch Clearblack 720p ICS LCD HD display, 8 MP rear camera, 1.2 GHz Quad-core processing power, and a 2500 mAh battery. It also ships with Windows Phone 8.1 Update 2, ultimately meaning it's eligible for a free upgrade to Windows 10 Mobile.
As is usual, it's smart to take up this offer while it still lasts, as there is no telling how fast stock will run out. You can check out the full deal at Cricket Wireless here. Once you have checked it out, do let us know if you will be taking up this offer by dropping us a comment below!