Sony Xperia Z4 could have been certified in the US and Japan
 

The certifications suggest the Xperia Z4’s announcement could come at or around MWC in March. Did the Sony Xperia Z4 just pass through certification from regulation authorities in the US and Japan? There’s no conclusive evidence to suggest so, but given Sony doesn’t have any other major release in store (at least not one we...

http://vr-zone.com/articles/sony-xpe...pan/85775.html