Pre-booking of Xperia X can be done through all authorised Sony mobile dealers and online exclusively on Amazon.
     
Sony Xperia X features 5-inch display, is powered by Qualcomm Snapdragon 650 processor, 3GB RAM, 32GB expandable storage, 23MP rear and 13MP front camera and 2,620 mAh battery.

Sony Xperia XA, on the other hand, is powered by MediaTek Helio P10 processor and comes with 2GB RAM, 16GB expandable storage option, 13MP rear and 8MP front camera and 2,300 mAh battery. Sony X goes on sale starting June 7, while XA will be available from third week of June.