US-bound Sony Xperia Z5 and Z5 Compact won't come with fingerprint sensors
Rather than on the back or the lower bezel, which is the case with most competing smartphones, the Z5 and Z5 Compact have their fingerprint readers built inside their power buttons, located on the right side. In our review of the Z5, we thought the gizmo worked pretty decent, but its positioning and overall design are less than ideal. Same goes for the Xperia Z5 Compact.
Sony's decision is certainly strange, for fingerprint readers are now common among high profile smartphones released in the United States. The reasoning behind it isn't immediately clear, but it seems pretty certain that the omission will make the Z5 and Z5 Compact less competitive in the US market. Sony Mobile's American presence is already limited at best, with its hi-end smartphones only being picked up by T-Mobile, and only occasionally.