Samsung Galaxy S6 Active coming to AT&T in May?

Another day, another unannounced Samsung device shows up out of nowhere. Its model number is SM-G890A, and it sounds like an immediate successor to the SM-G870A, which corresponded to the Galaxy S5 Active on AT&T (pictured below). Thus, this might be an AT&T Galaxy S6 Active, which is pretty much in line with what we expect from Samsung.