According to foreign media reports, Sony Xperia Z4 has been certified by Japanese operators NTT DoCoMo, KDDI and SoftBak, and is expected to be officially released soon. In addition, Xperia Z4 seems to have passed the FCC certification. To put it simply, it is appropriate to officially release it. Previously, it was reported that Xperia Z4 will have a dual version configuration, with a 5.2 inch screen and 2K resolution, which will further improve the appearance design.
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