Deal: Amazon discounts the Sony Xperia XA and Xperia XA Ultra, US warranty included

Amazon US is running an exciting promotion these days that includes decent (not significant) discounts on some mid-range smartphones launched by Sony last year, the Xperia XA and Xperia XA Ultra.

Both come unlocked and feature GSM/LTE support, so you'll be able to use them on carriers like AT&T, T-Mobile, Straight Talk, MetroPCS, Cricket Wireless, and a few others.

The cheaper of the two, Sony Xperia XA is available for just $179.99, which means you'll be saving 28% off the phone's $249.99 suggested retail price. The phone is available in four colors: ...