This can have several causes. Xiaomi founder Lei june told why his company has adopted launch smartphones with waterproof housing, although this feature is quite rewarding. According to him, even the least damage of an electronic device for protection against water penetration worsens. Another reason was the high cost of waterproof smartphones. In the company noted that if users had to pay 20-30% more than they are willing to revise their views and launch a model with casing protected against water penetration.
Presentations Apple devices do not say anything about the impermeability of the iPhone. However, tests indicate that users of latest generation models can, without any effect of being underwater. The recent experiment with the iPhone and iPhone 6s confirmed that even after 15 minutes of stay in the water in the chamber, the start button 3D Touch function, smartphones continue to operate.
iPhone iPhone 6s and SE considered opinion leaders in the filtration of water among all Apple gadgets. Lightning-speaker audio interface headphone smartphone after immersion in water operate in normal mode. Although it is 100% waterproof speech does not go.
These tests can be an indicator of use of Apple's new waterproofing technology patented technology in the past year. This technology involves the use of gidrofobnogo cover to protect the processor and other chips against water penetration. According to rumors, smartphones iPhone 7 and iPhone 7 Plus this year have increased protection and be officially waterproof.