Skip to main content

You’ll be waiting a while longer for blood glucose tracking on smartwatches

Post-walk fitness data on the Apple Watch Series 9.
Apple Watch Series 9 Andy Boxall / Digital Trends

Apple and Samsung — the two titans of the smartwatch industry — are chasing a new feature that would allow a smartwatch to measure the glucose levels in your blood. But the U.S. Food and Drug Administration (FDA)  is already concerned about misleading marketing tactics, even though the feature is yet to appear on a commercially available smartwatch from a well-known brand.

“The FDA has not authorized, cleared, or approved any smartwatch or smart ring that is intended to measure or estimate blood glucose values on its own,” says the regulatory agency. As such, the agency has asked users that they should refrain from buying or using smartwatches or rings that claim to measure the sugar levels in the bloodstream. 

Right now, there are medical-grade devices out there that can measure blood glucose levels, but most of them rely on an invasive method where a small puncture is required to draw out a blood sample and then analyze it. Noninvasive blood glucose monitoring has remained elusive so far, especially in a miniaturized form that is suitable for smartwatches.

Pinching skin to draw blood for blood glucose analysis.
towfiqu barbhuiya / Pexels

In 2020, Samsung announced that it had developed a noninvasive method for blood glucose level measurement in partnership with the Massachusetts Institute of Technology (MIT). Samsung didn’t specify whether the tech would make its way to a smartwatch, but multiple reports claimed that Samsung is exploring the tech for its smartwatches. 

Apple, on the other hand, is also said to be working toward the same goal. Rumors suggest that noninvasive blood glucose level analysis could arrive as a marquee new addition for the t10th-generation Apple Watch slated to hit the shelves later this year. 

Assuming the tech eventually makes it to the market later this year, it would start a mad race where every player would want to advertise that health facility for their own product. And that would mean misleading marketing claims, which is already a worrisome reality. It seems the FDA has already braced for the onslaught and has, therefore, made it clear that it hasn’t certified any such tech — from Apple or any other consumer electronics brand whatsoever. 

Measuring blood glucose level with a medical device.
Nataliya Vaitkevich / Pexels

“Do not buy or use smartwatches or smart rings that claim to measure blood glucose levels,” the agency writes in bold in an official press release. “These devices may be sold through online marketplaces or directly from the seller.”

Blood glucose level assessment in a wearable form factor would be a big achievement, irrespective of who reaches that milestone first. If one were to go by Samsung’s track record of publicly announcing regulatory nods for health features, we would certainly know if the FDA has certified such an impressive capability for a smartwatch or smart ring. 

Until that happens, do not buy into the claims of any such brand, and check for the FDA certification before investing your money. In the meantime, if you are interested in understanding the current state of development regarding wearable-assisted blood glucose monitoring tech, read this excellent research paper published in the Alexandria Engineering Journal. 

Editors' Recommendations

Nadeem Sarwar
Nadeem is a tech journalist who started reading about cool smartphone tech out of curiosity and soon started writing…
I keep forgetting about the Apple Watch Series 9’s coolest feature
Apps on the Apple Watch Series 9's screen.

I’m just going to come out and say it: I love the Apple Watch Series 9. A couple of weeks ago, I returned to wearing it every day after an extended period of not doing so. And you know what? I was surprised by how much I’d missed it.

But one thing has bothered me this time around: There's a feature I haven't been using. Not because it’s bad, but because I tend to forget it's there.
Effortless to own and wear

Read more
3 foldable phone deals you should seriously consider today
The Google Pixel Fold with the screen open.

For those who are thinking about getting a foldable phone, we've rounded up three foldable phone deals for you to consider as your next purchase. Motorola is currently selling the Motorola Razr at $200 off, which brings its price down to $500 from $700, and the Motorola Razr Plus at $300 off, which lowers its price to $700 from $1,000. Meanwhile, the Google Pixel Fold is available from Best Buy with a $500 discount that slashes its price to $1,299 from $1,799. You can be sure that you won't regret purchasing any of these devices because they're all included in our roundup of the best folding phones, but you need to hurry because the offers may expire at any moment.
Motorola Razr -- $500, was $700

The Motorola Razr features a 1.5-inch external OLED display and a 6.9-inch Full HD+ internal pOLED display, with decent performance provided by its Qualcomm Snapdragon 7 Gen 1 processor and 8GB of RAM. It's got a 64MP main camera and a 13MP wide-angle camera at the back, plus a 32MP selfie camera inside. The folding phone features a metal chassis that's surrounded by soft but durable leather, and it folds without a gap.

Read more
The OnePlus 12R is still one of 2024’s best smartphone deals
OnePlus 12R Genshin Impact Edition in hand.

OnePlus is still quite new to me, as I was a lifelong iPhone user until I joined Digital Trends. However, OnePlus has a pretty solid reputation in the mobile world, and now I can see why, as the OnePlus 12 is one of my favorite smartphones that I’ve used so far this year.

But the OnePlus 12 isn’t the only phone that OnePlus launched in 2024. There is also the more affordable value option, the OnePlus 12R, which even comes in a cool Genshin Impact Edition.

Read more