IP ratings indicate how well a device is protected against dust and water under the IEC 60529 standard. This guide explains what the two digits in an IP rating represent and how popular ratings such as IP44, IP54, IP64, IP65, IP67, IP68, IP69 and IP69K differ. It also covers what these ratings mean in everyday use, their limitations, and why an IP-rated smartphone should not be considered completely waterproof.
