The first Android smart phone that Sony finally the core four processors (quad-core) element. It got the name Xperia Z, which was introduced in the exhibition consumer electronics Consumer Electronics Show 2010 in Las Vegas, United States, Monday-phones (7/1/2013).
As the most reliable products hope Sony Xperia certainly Z smart phones can compete with U.s. competitors such as Samsung Galaxy S and HTC one X III +, which both use quad-core processor.see spesifications below :
How reliable is Xperia Z than the competitors?