Sony Officially Launches Xperia Z4; Specs, Features, Design And Availability

Xperia Z4 vs Xperia Z3: What's New in Next Gen Sony Smartphone?

With very little improvements in the fourth generation Xperia Z device, a debate has started whether the Sony Xperia Z3 series handset owners who are due to end their contract with network carriers need to go for the new Xperia Z4 or look for an alternative brand. Apr 20, 2015