The IP Code has two ratings, each represented by a single numeral, with larger numbers reflecting higher degrees of protection. The first character of the IP Code is for particles, ...

We've observed a trend toward increased water resistance in mobile devices, but “water resistant” is not a one-size-fits-all term and it does not mean the same thing as “waterproof”.

An Ingress Protection (IP) code will tell you about a phone’s water and particle resistance, making it easier to compare different models. So, what does this all mean for the iPhone 15 series?