Smartwatches have become a daily staple for millions, across the globe helping us track steps, monitor heart rates, and even check sleep quality. Despite the numerous benefits of these watches, do you know that a recent study raised a serious question of how a smartwatch band be harmful to one’s health? 

To get answers, researchers have discovered that many smartwatch bands contain chemicals linked to cancer, fertility issues, and other health problems.

What are these chemicals?

The culprits are called perfluoroalkyl and polyfluoroalkyl substances, or PFAS. Often nicknamed “forever chemicals,” PFAS are found in products like nonstick cookware, cosmetics, and fabrics. 

These chemicals don’t break down easily, so they stay in the environment and our bodies for a long time.

The study, published in the journal Environmental Science & Technology Letters, tested 22 smartwatch brands and found PFAS in 15 of them. Shockingly, higher-end brands had more of these harmful substances than budget options.

Why are PFAS a problem?

PFAS are concerning because they’ve been linked to health issues, including:

  • Certain types of cancer
  • Problems with fertility
  • Birth defects

What’s alarming about smartwatches is the prolonged skin contact—often up to 11 hours a day. The researchers warn that PFAS might absorb through the skin, potentially entering the body and causing harm over time.

How do PFAS get into smartwatch bands?

Manufacturers use PFAS, particularly a type called fluoroelastomers, to make bands more durable and resistant to oils and sweat. These chemicals help bands retain their color and flexibility, but they come with a hidden cost—potential exposure to toxic substances.

The study also revealed that some bands containing PFAS didn’t list it on their labels, making it even harder for consumers to make informed choices.

What should you do?

If you’re a smartwatch user, here are some steps you can take to reduce your exposure:

  • Check product descriptions: Avoid bands that mention fluoroelastomers or similar compounds.
  • Consider alternatives: Look for bands made from leather, fabric, or other materials that are less likely to contain PFAS.
  • Limit wear time: Take breaks from wearing your smartwatch to minimize prolonged skin contact.

What to know 

While this study sheds light on smartwatch bands, PFAS are everywhere, in our water, soil, and even food. Researchers are still studying the full extent of their impact, but it’s clear that reducing exposure is a step toward better health.

So, next time you strap on your smartwatch, take a moment to think about what’s in the band. Your health might thank you for it.