iPhone5

A treated phone has more resistance to liquid exposure, and there are fewer chances of water ingress into the interior.

A new iPhone5 (just out of the box):
The water contact angle on the surface was 80o and the droplets adhered strongly to the surface.

WaterShield Treated iPhone5:
The water contact angle on the surface was 120o and the water droplets roll off the surface when tilted.

ip5-bl-cu

 

iPhone5 Sidebars:
(Left) Water spreads over the siding on an untreated iPhone5 while the WaterShield treated surface is hydrophobic and water balls up and rolls off.