There was a time when only a few brands of smartphones (including Sony) were interested in waterproof smartphones.But today it is almost a must have for high -end devices.
Generally, this seal is certified with indices such as IP67 or IP68.But what do these symbols mean?In English, IP is the abbreviation of Ingress Protection.In French, it is "protection index".
As for the two figures, the first indicates the level of protection of the device against dust while the second figure indicates the level of water protection.
So, an IP 67 certified smartphone and an IP 68 certified smartphone have the same level of dust protection (6).On the other hand, against water, the IP 68 certified smartphone is better protected against immersion.
But it is also necessary to take into account the duration of this immersion.For example, the iPhone XS and the iPhone XS Max are IP 68 certified and according to Apple, this means that these devices can resist an immersion under a "maximum depth of 2 meters up to 30 minutes".
As for the iPhone XR, iPhone X, iPhone 8, iPhone 8 Plus, iPhone 7, and iPhone 7 Plus, they are IP 67 certified and after Apple, they can resist a maximum depth of 1 meter up to 30 minutes.
But don't bathe with your smartphone
It should be noted that you should not have blind confidence in these protections (do not bathe and do not swim with your smartphone, even if it has an IP XX certification).
In the case of Apple, this one specifies for example on its site that "the resistance to splashes, water and dust is not permanent and can decrease over time in the context of usenormal.The damage caused by a liquid is not covered by the guarantee, but it is possible that the law on consumer protection gives you rights.»»
To better understand the levels of protection against dust and water, and to know what is covered by warranty, the best is always to consult the official information of the manufacturer of your device.