Skip to Content

The Apple Watch May Be About to Get a Medical-Grade Add-On

A startup says it’s on the way to getting FDA approval for an EKG wristband that would attach to the Apple Watch.
March 16, 2016

It looks like the Apple Watch will soon be getting an accessory that could help people with serious heart conditions.

AliveCor, a startup that works on mobile heart-monitoring technology, says it’s making a heart monitor built into a special watchband that works with a speech-recognition app to log symptoms. The company says its Kardia Band will contain a “medical-grade” electrocardiogram (EKG) that will let users touch the watchband to quickly find out if their heart rhythm is normal or not. AliveCor currently offers a $99 gadget called Kardia Mobile that brings the same kind of sensing to a smartphone via a case or special plate that connects to your handset and an app that lets you send heart data to your doctor.

The company also says it’s working on getting approval from the U.S. Food and Drug Administration for the watchband device, which would make it a rarity — AliveCor CEO Vic Gundotra told Re/code that, should that happen, he thinks it will be the first smartwatch device to receive such clearance.

It’s not yet clear when Kardia Band will be released or how much it will cost, but Re/code reports that an algorithm the company uses to instantly analyze EKG signals has been approved by the FDA and is in a version of the app that was released Wednesday.

Apple Watch already has a built-in heart rate monitor, but that sensor is intended for more casual use like logging daily activity or workouts, not keeping an eye on medical problems. And its readings are not necessarily accurate: some Apple Watch users complained its pulse readings are off the mark for some activities. Apple notes on its website that activities such as tennis that lead to “irregular movements” won’t capture the heart rate as accurately as those that are “rhythmic,” such as running.

In general, building accurate biometric tracking into a consumer device—or in this case, one that works with a consumer device—is not easy. The wrist is not actually the best part of the body for measuring signals like heart rate, due to issues like extra noise from arm movements, difficulty in getting consistent contact with the skin, and variations in things like skin translucency and skin tones.

But since it looks like AliveCor is planning to gather its data not by using sensors on the underside of the band but by having you touch your finger to the sensor embedded in the wristband—as this video on its website indicates—it may have better luck.

(Read more: Re/code, Tech Times, “Health Tracking Startup Fails to Deliver on Its Ambitions”)

Keep Reading

Most Popular

transplant surgery
transplant surgery

The gene-edited pig heart given to a dying patient was infected with a pig virus

The first transplant of a genetically-modified pig heart into a human may have ended prematurely because of a well-known—and avoidable—risk.

Muhammad bin Salman funds anti-aging research
Muhammad bin Salman funds anti-aging research

Saudi Arabia plans to spend $1 billion a year discovering treatments to slow aging

The oil kingdom fears that its population is aging at an accelerated rate and hopes to test drugs to reverse the problem. First up might be the diabetes drug metformin.

Yann LeCun
Yann LeCun

Yann LeCun has a bold new vision for the future of AI

One of the godfathers of deep learning pulls together old ideas to sketch out a fresh path for AI, but raises as many questions as he answers.

images created by Google Imagen
images created by Google Imagen

The dark secret behind those cute AI-generated animal images

Google Brain has revealed its own image-making AI, called Imagen. But don't expect to see anything that isn't wholesome.

Stay connected

Illustration by Rose WongIllustration by Rose Wong

Get the latest updates from
MIT Technology Review

Discover special offers, top stories, upcoming events, and more.

Thank you for submitting your email!

Explore more newsletters

It looks like something went wrong.

We’re having trouble saving your preferences. Try refreshing this page and updating them one more time. If you continue to get this message, reach out to us at with a list of newsletters you’d like to receive.