Best Buy has some deep discounts on two older no-contract Lumia smartphones from Microsoft for those of you who are looking to get a new phone on the cheap. The retailer has the Lumia 435 from T-Mobile priced at $29.99, while AT&T's Lumia 640 is currently just $49.99.
Both phones can be upgraded to Windows 10 Mobile if you want to go ahead and sign up for the Windows Insider program. The Lumia 435 comes with a 4-inch WVGA (800x480) display, a dual-core 1.2GHz Snapdragon 200 processor, 1GB of RAM, 8GB of internal storage, microSD slot, a 2MP rear camera, a 0.3MP front-facing camera and a 1,560mAh battery.
The Lumia 640 has a 5-inch HD (1280x720) IPS LCD display, a 1.2GHz Qualcomm Snapdragon 400 quad-core processor, 1GB of RAM, 8GB of internal storage, a MicroSD card slot, an 8MP rear camera, a 1MP front-facing camera and a 2,500mAh battery.
Keep in mind that while both of these phones can be bought and used without a contract, the Lumia 435 is tied into T-Mobile's network, while the Lumia 640 can only be used on AT&T's network.