Sony Xperia Z vs. LG Optimus G Pro vs. HTC One vs. Samsung Galaxy S4 preview
 

The annual Mobile World Congress in Barcelona opened its doors to the public today, but many manufacturers had already unveiled their high-end models for 2013 prior to the event. Sony, HTC and LG have been showing off their flagship models to the media in recent weeks. We've gotten sneakpeeks of the Sony Xperia Z, HTC One and LG Optimus G Pro so far, and Sony’s Xperia Z is even available already. Samsung has been holding off, but on March 14 the Galaxy S IV will be officially introduced at an event in New York.

http://uk.hardware.info/reviews/4011...axy-s4-preview