Originally Posted by Envious_Data
Xperia Z is Ip57
Z2 is ip58
as usual , no chemicals aka pools, saltwater, and anything else that isnt freshwater as noted by sony. you can still submerge it in these conditions, just not as deep as they erode at the seals easier
Using your device in wet and dusty conditions
in dusty environments, for example, on a windy beach.
when your fingers are wet.
in some extreme weather conditions, for example, when itís snowing or raining.
in fresh (non-saline) water depths of 1.5 metres or less, for example, in a fresh water lake or river.
in a chlorinated swimming pool.
thats from sony care website