Skip to main content

Smartwatches know when you’re getting sick before you do

Apple Watch Series 2's heart-rate monitor.
Julian Chokkattu/Digital Trends
Have you been looking for a reason to wear your heart-rate tracking smartwatch or fitness band more often? How about that if you do, it has a better chance of pre-warning you that you’re about to get sick? Research carried out by scientists at Stanford University in California has shown the right wearable tech, and diligence when it comes to recording and checking data collected, may help spot the onset of a potential cold or disease.

During tests on wearable tech to discover how they could be used in health matters, professor Micheal Snyder noticed the readings showed a higher than usual heart rate, higher skin temperature, and lower blood oxygen levels. The unusual activity was striking because he felt fine. The sudden onset of a low fever convinced him to see a doctor, and he wondered if it was the onset of Lyme disease, having recently spent some time in a rural area where he may have picked it up.

After taking the right antibiotic the symptoms cleared up, and medical tests soon confirmed his diagnosis had been correct. The wearable devices had given him enough pre-warning to catch a potentially very unpleasant disease early on, get the right treatment, and stop it before more serious problems occurred.

Snyder went on to write a paper on the subject, showing that elevated heart rate and skin temperature coincided with sickness in himself and three other people. Monitoring and noting abnormalities in both may help identify and pre-warn the wearer of changes in health. Although quite a few wearables were used in the study — including the Basis Peak, and more health focused wearables like a test version of the Scanadu and Masimo’s personal health tracker — it’s noted only one plus a smartphone would provide most of the data necessary, as heart rate is the most trackable and useful statistic.

The study doesn’t cover a wide group of people, and it’s stated more research is needed on the subject; but it’s definitely evidence the heart rate monitor and other sensors we often ignore in wearables may have more than a single, fitness-focused use. If not for you personally, then for doctors wanting to monitor the continued health of a sick or elderly patient. The complete study can be read here.

Andy Boxall
Andy is a Senior Writer at Digital Trends, where he concentrates on mobile technology, a subject he has written about for…
AT&T just made it a lot easier to upgrade your phone
AT&T Storefront with logo.

Do you want to upgrade your phone more than once a year? What about three times a year? Are you on AT&T? If you answered yes to those questions, then AT&T’s new “Next Up Anytime” early upgrade program is made for you. With this add-on, you’ll be able to upgrade your phone three times a year for just $10 extra every month. It will be available starting July 16.

Currently, AT&T has its “Next Up” add-on, which has been available for the past several years. This program costs $6 extra per month and lets you upgrade by trading in your existing phone after at least half of it is paid off. But the new Next Up Anytime option gives you some more flexibility.

Read more
Motorola is selling unlocked smartphones for just $150 today
Someone holding the Moto G Stylus 5G (2024).

Have you been looking for phone deals but don’t want to spend a ton of money on flagship devices from Apple and Samsung? Have you ever considered investing in an unlocked Motorola? For a limited time, the company is offering a $100 markdown on the Motorola Moto G 5G. It can be yours for just $150, and your days and nights of phone-shopping will finally be over!

Why you should buy the Motorola Moto G 5G
Powered by the Snapdragon 480+ 5G CPU and 4GB of RAM, the Moto G delivers exceptional performance across the board. From UI navigation to apps, games, and camera functions, you can expect fast load times, next to no buffering, and smooth animations. You’ll also get up to 128GB of internal storage that you’ll be able to use for photos, videos, music, and any other mobile content you can store locally. 

Read more
The Nokia 3210 is the worst phone I’ve used in 2024
A person holding the Nokia 3210, showing the screen.

Where do I even start with the Nokia 3210? Not the original, which was one of the coolest phones to own back in a time when Star Wars: Episode 1 -- The Phantom Menace wasn’t even a thing, but the latest 2024 reissue that has come along to save us all from digital overload, the horror of social media, and the endless distraction that is the modern smartphone.

Except behind this facade of marketing-friendly do-goodery hides a weapon of torture, a device so foul that I’d rather sit through multiple showings of Jar Jar Binks and the gang hopelessly trying to bring back the magic of A New Hope than use it.
The Nokia 3210 really is that bad

Read more