Can you really trust your smartwatch? A doctor explains

If you're one of the millions of Americans now wearing a smartwatch or fitness tracker, you might be wondering: is this device actually helping my health—or just adding another source of EMF exposure to worry about?

A new study published in NPJ Digital Medicine reveals just how mainstream these devices have become. Researchers from Yale School of Medicine analyzed national health survey data and found that wearable device ownership among U.S. adults jumped by 36.1% between 2020 and 2024, reaching 41.1% of adults by 2024. That means nearly half of American adults are now wearing devices like Apple Watches, Fitbits, Garmin watches, Samsung Galaxy Watches, or Oura Rings that track everything from heart rate and exercise to sleep quality and stress levels.

The Trust Question Nobody's Asking

Dr. Sos Mboijana, an internal medicine physician with The Permanente Medical Group, says the real questions patients bring to him aren't about the technology itself—they're about whether the data can actually improve their health. "A lot of the questions I get are, 'Is this right? Does this help? Is this helping my health? How can I use this to better improve my outcomes?'" he explained. "There's usually a health question behind it."

But here's the catch: while most wearable users told researchers they'd be willing to share their health data with doctors, fewer than one in five had actually done so. The study concluded that wearable technology has enormous potential to improve healthcare, but its impact remains limited because many users don't consistently wear their devices or integrate the information into their medical care.

What Health-Conscious Families Should Consider

For parents and homebuyers already concerned about EMF exposure, wearables present a unique dilemma. These devices emit low levels of EMF radiation—they're Bluetooth-enabled and often have cellular connectivity, meaning they're essentially mini cell phones strapped to your wrist 24/7. While we've covered common myths about 5G and EMF exposure, the cumulative effect of multiple wireless devices in daily use is a legitimate consideration for families trying to reduce their overall exposure.

The good news? Dr. Mboijana views engaged patients who ask questions about their health data as a positive sign. The key may be finding a balance—using these devices strategically rather than wearing them constantly, much like how some families choose low-EMF alternatives for everyday appliances or implement EMF shielding solutions in their homes.

If you do use a wearable, consider: Do you actually review and act on the data? Are you sharing it with your healthcare provider? If not, you might be accepting EMF exposure without the health benefits these devices promise.

Originally reported by WJLA