What those IP ratings like IP68 or IP53 really mean

Waterproof phones are exciting. Instead of dropping your phone in a bowl of rice when you accidentally knock it off the counter and into the sink, you can just dry it off and keep on truckin’. And many of today’s waterproof phones are as waterproof as they can possibly get—they’ve got an IPX8 rating, where 8 is the highest (barring extreme products that aren’t made for consumers) “waterproofness” a consumer device can possibly qualify for.Right?Well&hell