I had the sony xperia z1. It is very good phone with 5.5 screen. The working of phone is very smooth. The sound quality of the phone make it diffrent from other phones. It is having very good sound quality. The black look is very sexy. Easy to handle. It is also water resistance. The camera quality is good. The problem of phone is that its screen got cracks its slef when it was in my pocket. I don't know how it happened. Also the power button ring get out. The charger port flap cover get loose and damge with time.