ı am not good with tecnology but ı ask that becouse lumia 1520 and 1320 can make 1080p video record now so ı thought maybe if lumia 1520 can uprade about video recording maybe 1320 can do that too (and its true that screen is not full hd but it can record it in 1080p )
the 1520 has much higher end/quality/power hardware than the 1320.
but ultimately, this means no 4K for the 1320, and the 1320 does not have the right chipset for "Hey Cortana"