ZTE phone for Sprint clears FCC, shows signs it's the Vital

We're starting to get a pretty clear picture of the smartphones that Sprint has in its pipeline, which include an LG Optimus F3, a new Windows Phone from HTC, the Moto X, the Kyocera Hydro Edge and the Sprint-branded Vital. In a buildup to the debut of the latter, a ZTE-manufactured handset has made its way through the FCC that carries plenty of telltale signs it's the Vital. First and foremost, this one's easy to peg as a Sprint smartphone, since it includes requisite CDMA support and compatibi...