Sony-Xperia-Z1 has core Snapdragon 800 2.2GHz processor and 2GB RAM. This is best Sony mobile until yet which has HD 5 inch screen and 300mhA battery. Technical specification of this mobile is very good it is available in 16GB built-in memory.
With just a look, you may not instantly have the capacity to tell much distinction between the Z1 and its old model. It's strictly the same physical size, the standing out force catch is in the same spot and the Sony and Xperia logos sit in the same place. The observable contrast is the expansion of a committed Polaroid shade bind and an aluminium band around the edge.