The Sony Xperia Z4 was announced for the Japanese market six months after the introduction of the Xperia Z3 in September of 2014, making Sony stay true to its “flagship every six months” policy. It took the company about a month to announce the Xperia Z4 globally, but with a different name. We’re here to unbox the Xperia Z3+, aka the Xperia Z4.
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