Apart from water, Apple designed the devices to resist against dust completely.
The IP67 rating is a combination of both water and dust resistance index.
IP6x is the highest dust resistance rating and new iPhone models are completely protected against dust.
Samsungs devices are rated at IP68, suggesting better overall water resistance.
Do not attempt to charge a wet iPhone; refer to the user guide for cleaning and drying instructions.
Liquid damage not covered under warranty.
In short, try and keep your smartphone safe and dry wherever possible.
source: www.techworm.net
