What Does IP68 Mean on a Smartwatch? Water Resistance Guide

If you've been shopping for a smartwatch, you've probably seen specifications such as IP68, 5ATM, or 10ATM.

But what do these ratings actually mean?

For everyday smartwatch users, water and dust resistance can be just as important as battery life, display quality, or sports tracking.

An IP68 rating sounds impressive, but it doesn't mean that every IP68 smartwatch can be used in every water situation.

Here's what you need to know.

What Does IP68 Mean?

IP stands for Ingress Protection.

An IP rating describes how well a device is protected against the entry of solid particles and water under specified test conditions.

The two numbers in IP68 represent different types of protection.

6 = high protection against dust
8 = protection against water under specified conditions

The first number relates to solid particles such as dust.

The second number relates to water.

So, when you see an IP68 smartwatch, the rating tells you that the watch has been designed and tested for a high level of dust protection and water ingress protection.

What Does the "6" in IP68 Mean?

The first digit is 6, which represents protection against dust.

This is useful for a smartwatch because watches are exposed to many everyday environments.

You might wear your watch while:

Walking outdoors
Exercising
Traveling
Hiking
Working
Spending time at the beach
Doing outdoor activities

Dust and fine particles can potentially enter poorly protected electronic devices.

A high dust-protection rating helps make a smartwatch more suitable for everyday environments.

What Does the "8" in IP68 Mean?

The second digit is 8, which represents water protection under the conditions defined by the relevant testing standard and manufacturer.

This is where things can become confusing.

IP68 does not simply mean "waterproof."

The exact water-resistance capability depends on the manufacturer's testing conditions and specifications.

For this reason, you should always check the product's official water-resistance instructions rather than assuming every IP68 device has identical capabilities.

Is an IP68 Smartwatch Waterproof?

Not necessarily.

The term waterproof can give the impression that a device can safely be exposed to water under any circumstances.

That's not how water-resistance ratings work.

An IP68 smartwatch may be designed to handle certain types of water exposure, but factors such as water depth, duration, temperature, pressure, and the condition of the device can affect its performance.

In other words:

IP68 means water resistant under specified conditions—not unlimited protection from water.

Can You Wear an IP68 Smartwatch in the Shower?

This depends on the manufacturer's instructions.

Although an IP68 rating indicates a high level of water protection, showering can involve conditions that aren't the same as a controlled water-resistance test.

Hot water, steam, soap, shampoo, and changes in water pressure may affect a device differently from ordinary water exposure.

If you plan to wear your smartwatch in the shower regularly, check the manufacturer's specific guidance first.

Can You Swim With an IP68 Smartwatch?

Don't assume that IP68 automatically means a smartwatch is suitable for swimming.

Swimming involves continuous water exposure and movement through water.

Some smartwatches are specifically designed and rated for swimming, while others may only be designed to handle everyday splashes or brief water exposure.

If swimming is important to you, look for a smartwatch that explicitly lists swimming or a suitable water-resistance rating among its supported activities.

IP68 vs 5ATM: What's the Difference?

This is one of the most common questions when comparing smartwatches.

IP68 and 5ATM describe different aspects of protection.

IP ratings focus on protection against the entry of dust and water under defined test conditions.

ATM ratings are commonly used to describe water resistance associated with pressure.

For smartwatch shoppers, this means you shouldn't assume that an IP68 rating and a 5ATM rating are interchangeable.

If a smartwatch has both ratings, look at the manufacturer's instructions to understand how the watch is intended to be used around water.

Why Water Resistance Can Change Over Time

Even if your smartwatch is rated for water resistance, its protective performance may change as the device gets older.

Several factors can contribute to this.

Physical Damage

Drops, cracks, or damage to the case can compromise seals.

Wear and Tear

Water-resistant seals and components can deteriorate over time.

Repairs

Opening a smartwatch during repair can affect its original sealing if it is not properly resealed.

Extreme Conditions

High temperatures, chemicals, steam, or unusual water pressure may create conditions outside the original testing environment.

That's why water resistance shouldn't be treated as a permanent guarantee for the entire lifetime of a smartwatch.

How to Take Care of a Water-Resistant Smartwatch

A few simple habits can help protect your device.

Keep the Watch Clean

After exercising or being exposed to water, clean the watch according to the manufacturer's recommendations.

Avoid Unnecessary Exposure

Even if your smartwatch is water resistant, don't intentionally expose it to water whenever it's unnecessary.

Check the Seals After Damage

If your watch has suffered a significant impact or has visible damage, be more cautious around water.

Follow the Manufacturer's Instructions

The product's official specifications should always take priority over general assumptions about IP ratings.

What Should You Look for When Buying a Smartwatch?

Water resistance is only one part of the decision.

If you're choosing a smartwatch for everyday use, consider the complete package:

Water resistance for your lifestyle
Battery life for your daily routine
Display quality for easy viewing
Sports modes for your favorite activities
Health and wellness tracking for everyday insights
Weight and thickness for comfort
GPS if you exercise outdoors
Design for everyday wear

For example, someone who mainly works in an office may have very different requirements from someone who runs, hikes, or cycles outdoors.

IP68 Smartwatch: Is It Enough for You?

An IP68 smartwatch can be a practical choice if you want additional protection against dust and water exposure in everyday life.

But don't choose a smartwatch based on the IP68 label alone.

If you regularly swim, exercise outdoors, or spend a lot of time around water, check the complete water-resistance specifications and usage instructions.

The most important thing is to match the rating with your actual lifestyle.