AT A GLANCE
Android 5.1.1 Lollipop
5.5-inch 3,840 x 2,160 pixels LCD
Qualcomm Snapdragon 810 v2.1 octa-core processor
154.4 x 75.8 x 7.8 mm
The Z5 Premium Dual has the highest megapixel camera (23MP) in our shootout.
The power button on the side of the Z5 Premium Dual is a fingerprint scanner too.
The rear of the Z5 Premium Dual has a shiny, mirror-like finish not seen on the Z5 or Z5 Compact.