@evleaks published photos of a smartphone with a sticker on its back that reads “XFON ATT”. With the logos of Motorola and AT&T clearly visible, this is obviously an X Phone made for US carrier AT&T. You can see the pictures in the source. What we are seeing from Google and Motorola’s exemplar is sheltered by a dummy case usually used for hiding the device during field testing. But what is visible definetely reminds of the pictures leaked by vietnamese website Tinhte.vt.
The back panel has a kevlar covering typical of Motorola’s previous models. While they won’t be coming out with new devices for a long while since Google bought them, we can see the X Phones announced together with Android 5.0.Source: GSMArena