Nokia Lumia 900 on Sale for Just $20

The Nokia Lumia 900 is on sale on Amazon Wireless for a low price of $20 for current AT&T subscribers. This is well below this carrier's own price for this Windows phone: $100.

Those with an AT&T-based phone can upgrade their phones for 80% below its current selling price. Curiously, the sale isn't applicable for new customers or for those looking to add a new line to their contract. New customers will have to pay $50 for the Nokia Lumia 900 while customers looking to add a new line will have to pay $75 for the handset. Still, this is less than AT&T itself will charge.

Amazon Wireless has been the home of multiple sales on smartphones among various wireless carriers. Customers have a tendency to purchase phones straight from their carriers which means they often miss out on great deals from third-party retailers such as Amazon.

Be sure to read our review of the Lumia 900.