And the only thing that it confirms is phone's dual camera setup, just like Galaxy Note 8 has. Other than that, we have learned nothing new. As far as specification goes, all we have are old news (rumours): 5.7' Super AMOLED display, Snapdragon 625 CPU, 4GB RAM and 3300mAh battery. The aforementioned dual camera setup is supposed to be a 16mpx main and 8mpx secondary cameras.
Perhaps it does not matter much to us anyway, since Galaxy C series are usually reserved for China.
Messaging, new messaging (duh) app by HTC, now available on Google Play