ATT has been aggressive with their LTE phone pricing, and the Pantech Burst is their latest pleasant surprise. For only $50 on contract, you get a fast Qualcomm Snapdragon dual core Android smartphone with 4G LTE and a sharp and bright 4" Super AMOLED display. The Burst isn't particularly thin but it's not bad looking and it feels and looks well made. It offers good voice quality and fast data both on LTE 4G and HSPA+.
If you're looking for a fast Android smartphone with LTE but don't want to spend too much, be sure to check out the Burst.