Have you ever wondered what the IP68 rating on your new smartphone or smartwatch actually means? You’ve probably seen it touted as a key feature, but what does it really tell you about your device's durability?
In short, IP68 is an international standard that rates a device’s resistance to dust and water. And yes, you should absolutely care about it.
This little code is a big deal when it comes to protecting your tech from everyday accidents.
Breaking Down the IP Code: What the Numbers Mean
The "IP" in IP68 stands for Ingress Protection, which is just a fancy way of saying how well a device is sealed against outside elements.
The two numbers that follow each have a specific, crucial meaning:
- The first digit (6): This number rates a device's resistance to solids, primarily dust. A '6' is the highest possible rating, which means the device is completely dust-tight. No dust can get inside, period. This is great for anyone who uses their phone outdoors or in a dusty environment, perhaps tramping in the national parks.
- The second digit (8): This number rates a device's resistance to liquids, specifically water. An '8' is the highest rating for continuous submersion. This means the device can be submerged in water deeper than one metre for a specific period of time, which is usually around 30 minutes, but it's always best to check with the manufacturer for the exact specifications.
So, when you see IP68, it's a simple way of knowing that your device offers the highest level of protection against both dust and water.
A device with a lower rating, like IP67, is also dust-tight but can only be submerged in up to one metre of water.
The testing process for IP ratings is standardised and performed by independent labs. For the water resistance test, devices are submerged in a tank of still, fresh water under controlled pressure and for a specific duration. This is a key point to remember: the tests are done with fresh water, not saltwater, soapy water, or other liquids. This distinction is crucial because other liquids can damage the seals and corrode internal components.
This brings us to a few critical things that an IP68 rating does not guarantee.
- Not for Saltwater or Other Liquids: If you drop your phone in the ocean at Piha, the IP68 rating won't protect it from the corrosive effects of saltwater. The same goes for sugary drinks, coffee, or a hot tub full of chlorinated water.
- High Pressure is a Problem: The water resistance is tested in still water. High-pressure jets from a showerhead or a powerful faucet can force water past the seals.
- Age and Damage Matter: The seals on a device can degrade over time, and a drop or impact can create microscopic cracks. An older or damaged phone may not be as water-resistant as it was when it was new.
- Warranties Are a Different Story: Most manufacturers' warranties explicitly state that they do not cover water damage, even if the device is IP68-rated. The rating is for protection, not a promise of invincibility.
Should You Care About IP68?
Absolutely. An IP68 rating provides a great level of peace of mind. It's the assurance that your expensive piece of technology is built to withstand common, everyday accidents. It means your device will most likely be fine if:
- It gets splashed by a drink at a restaurant.
- You get caught in an unexpected rain shower.
- It takes a tumble into a shallow puddle or a sink.
Think of the IP68 rating as a valuable safety net, not an invitation to go swimming with your device.
It’s an essential feature for anyone who wants their technology to be as durable and reliable as possible. It's a small detail that makes a big difference.
