Apple Working on EKG Heart Monitor for Future Apple Watch Models - MacRumors
Skip to Content

Apple Working on EKG Heart Monitor for Future Apple Watch Models

Future Apple Watch models could include a sensor that allows for continuous electrocardiograph monitoring to better detect serious heart conditions, reports Bloomberg.

Apple is said to be testing a version of the Apple Watch that records the electrical activity of the heart using two fingers on either side of the device, a test that is known as an electrocardiogram or EKG/ECG. With an EKG, sensors detect electrical changes in the skin caused by the rhythm of your heart beat.

applewatchheartrate2

A version being tested requires users to squeeze the frame of the Apple Watch with two fingers from the hand that's not wearing the device, one of the people said. It then passes an imperceptible current across the person's chest to track electrical signals in the heart and detect any abnormalities like irregular heart rates.

EKGs today are most often done in medical offices and hospitals, but there are some continuous-wear EKG monitors on the market for those who need more frequent monitoring. With the ability to detect irregular heart beats and other oddities, the Apple Watch would be able to better predict and monitor serious heart conditions. Such functionality has the potential to allow people to catch and treat heart problems early.

Bloomberg says development is ongoing on the EKG functionality for the Apple Watch, and Apple could still decide to scrap it. With the first Apple Watch, Apple reportedly dropped several sensors because they weren't accurate enough.

Apple has taken a deep interest in heart health in recent months, and in November launched a ResearchKit-based Apple Heart Study app in partnership with Stanford University's School of Medicine. The aim of the study is to determine whether the existing heart rate monitoring functionality of the Apple Watch can accurately detect irregular heart rhythms.

It's not clear if adding EKG functionality to the Apple Watch would require Apple to get FDA approval. Apple CEO Tim Cook has said in the past that he doesn't want to get the FDA involved with the Apple Watch, but Apple is participating in a pilot program for faster approval of digital health tools.

Just this past November, the FDA approved the EKG Kardia Band from AliveCor, the first official medical-grade accessory designed for the Apple Watch.

Related Roundup: Apple Watch 12
Buyer's Guide: Apple Watch (Buy Now)
Related Forum: Apple Watch

Popular Stories

Home Hub Command Center with Dome Base Feature

Apple Smart Home Hub to Feature iMac G4-Style Design

Wednesday September 30, 2026 4:36 am PDT by
Apple's long-rumored smart home hub will have an iMac G4-style design and a host of unique features, Bloomberg's Mark Gurman reports. The smart home hub is said to feature a square 6-inch display, with variants that can be placed on a countertop or mounted on a wall. It features a single FaceTime camera on the front, with microphones and speakers in its connected base. Gurman described the...
HomePod minis on gradient feature 1 1

Three New Apple Smart Home Products Coming on October 13

Wednesday September 30, 2026 4:04 am PDT by
Apple plans to introduce a series of new smart home products on Tuesday, October 13, according to Bloomberg's Mark Gurman. Apple reportedly plans to debut its long-awaited smart home hub device, a new HomePod mini, and a new Apple TV on the date. The new HomePod mini and Apple TV are set to retain their existing designs, but tout faster chips to support Siri AI. The new HomePod mini will...
Black Apple Event Logo

Apple Now Inviting Media to October 28 'Launch Experience'

Thursday October 15, 2026 4:13 am PDT by
Apple has begun inviting selected members of the media to a product launch experience in Los Angeles on Wednesday, October 28, according to Bloomberg's Mark Gurman. In a post on X, Gurman described the gathering as an "all-day product launch experience" for touchscreen MacBooks, a new iPad mini, and Macs equipped with M6 chips. Gurman previously reported that Apple would introduce the...

Top Rated Comments

BigDO Avatar
115 months ago
Will it throttle down your heart if it detects that it's running at less than 80% capacity?
Score: 39 Votes (Like | Disagree)
DJArie Avatar
115 months ago
Future Apple Watch models could include a sensor that allows for continuous electrocardiograph monitoring to better detect serious heart conditions, reports Bloomberg ('https://www.bloomberg.com/news/articles/2017-12-21/apple-is-said-to-develop-ekg-heart-monitor-for-future-watch').

Apple is said to be testing a version of the Apple Watch that records the electrical activity of the heart using two fingers on either side of the device, a test that is known as an electrocardiogram or EKG/ECG. With an EKG, sensors detect electrical changes in the skin caused by the rhythm of your heart beat.


EKGs today are most often done in medical offices and hospitals, but there are some continuous-wear EKG monitors on the market for those who need more frequent monitoring. With the ability to detect irregular heart beats and other oddities, the Apple Watch would be able to better predict and monitor serious heart conditions. Such functionality has the potential to allow people to catch and treat heart problems early.

Bloomberg says development is ongoing on the EKG functionality for the Apple Watch, and Apple could still decide to scrap it. With the first Apple Watch, Apple reportedly dropped several sensors because they weren't accurate enough.

Apple has taken a deep interest in heart health in recent months, and in November launched a ResearchKit-based Apple Heart Study app ('https://www.macrumors.com/2017/11/30/apple-heart-study-app-launches/') in partnership with Stanford University's School of Medicine. The aim of the study is to determine whether the existing heart rate monitoring functionality of the Apple Watch can accurately detect irregular heart rhythms.

It's not clear if adding EKG functionality to the Apple Watch would require Apple to get FDA approval. Apple CEO Tim Cook has said in the past that he doesn't want to get the FDA involved with the Apple Watch, but Apple is participating in a pilot program for faster approval of digital health tools ('https://www.macrumors.com/2017/09/26/apple-fda-pilot-program-digital-health-tools/').

Just this past November, the FDA approved the EKG Kardia Band ('https://www.macrumors.com/2017/11/30/alivecor-kardia-ekg-band-medical-fda-apple-watch/') from AliveCor, the first official medical-grade accessory designed for the Apple Watch.

Article Link: Apple Working on EKG Heart Monitor for Future Apple Watch Models ('https://www.macrumors.com/2017/12/21/future-apple-watch-ekg-heart-monitor/')
[doublepost=1513879722][/doublepost]I'm seriously tempted to buy this next one as a medical condition I thought was normal I discovered isn't, and I want to track it and this addition would do precisely that.
[doublepost=1513879755][/doublepost]
Where is that redesign?
The design looks fine to me.
Score: 14 Votes (Like | Disagree)
HobeSoundDarryl Avatar
115 months ago
But three generations of the same design gets old. At the very least they should tweak it.
Don't worry, they'll switch the red color on the crown to blue or jet black or newborn star white or something for a completely new look that will be obvious to all of your friends that you have the latest version.
Score: 6 Votes (Like | Disagree)
115 months ago
This type of upgrade will be what gets me to buy my next watch. Hope they keep working on adding things of this nature.
Score: 5 Votes (Like | Disagree)
PlainviewX Avatar
115 months ago
Will Apple turn off a few of my heart chambers if the battery in the watch goes below 90% functionality?
Score: 4 Votes (Like | Disagree)
EdT Avatar
115 months ago
But three generations of the same design gets old. At the very least they should tweak it.
I would prefer that they make it more useful first. The design is ok, and it will be features like health monitoring that entice people to spend $300-600 for what otherwise is a fancy watch. But for people with heart conditions or diabetes, if they get the blood sugar monitoring reliable, then the health benefits would justify that cost or more pretty quickly, ignoring anything else the Watch does.
Score: 4 Votes (Like | Disagree)
Latest Stories
Crackgate? iPhone Duo Owners Report Screens Breaking Along the Hinge
Crackgate? iPhone Duo Owners Report Screens Breaking Along the Hinge
23 minutes ago
iPhone Duo Brings Back Long Lines at Apple Stores
iPhone Duo Brings Back Long Lines at Apple Stores
32 minutes ago
The MacRumors Show: iPhone Duo Arrives, Touchscreen MacBooks Next
The MacRumors Show: iPhone Duo Arrives, Touchscreen MacBooks Next
3 hours ago
Apple Released iOS 27.1 for iPhone Duo Only
Apple Released iOS 27.1 for iPhone Duo Only
3 hours ago
iPhone Duo: Open Two Apps Side by Side and Lock Them As an App Pair
iPhone Duo: Open Two Apps Side by Side and Lock Them As an App Pair
3 hours ago
iPhone Duo Launches With Carrier and Accessory Discounts Available
iPhone Duo Launches With Carrier and Accessory Discounts Available
4 hours ago
Apple Music Has a Hidden iPod You Can Play With
Apple Music Has a Hidden iPod You Can Play With
4 hours ago
iPhone Duo Says 'Hello' to You Personally
iPhone Duo Says 'Hello' to You Personally
5 hours ago
iPhone Duo: How to Skip the Swipe Up After Touch ID
iPhone Duo: How to Skip the Swipe Up After Touch ID
5 hours ago
Where to Buy iPhone Duo Today: Stores, Pickup, and Wait Times
Where to Buy iPhone Duo Today: Stores, Pickup, and Wait Times
7 hours ago
MacBook Neo Helps Apple Outpace Rivals as Market Declines
MacBook Neo Helps Apple Outpace Rivals as Market Declines
11 hours ago
Happy 25th Anniversary, iPod
Happy 25th Anniversary, iPod
11 hours ago
iPhone Duo Demand Reportedly Exceeds Apple's Expectations
iPhone Duo Demand Reportedly Exceeds Apple's Expectations
14 hours ago
iPhone Duo Launch Begins as First Orders Reach Customers
iPhone Duo Launch Begins as First Orders Reach Customers
20 hours ago
1Password for Agents Keeps Your Passwords Hidden From AI
1Password for Agents Keeps Your Passwords Hidden From AI
21 hours ago
iPhone Duo 24 Hours Later: Your Questions Answered
iPhone Duo 24 Hours Later: Your Questions Answered
22 hours ago
Apple's iWork Apps Get 'Intelligent Assistant' and iPhone Duo Support
Apple's iWork Apps Get 'Intelligent Assistant' and iPhone Duo Support
22 hours ago
Apple is Apparently Considering a Slightly Larger iPhone Duo
Apple is Apparently Considering a Slightly Larger iPhone Duo
23 hours ago
Giant iPhone Duo Displays Coming to Four Apple Stores
Giant iPhone Duo Displays Coming to Four Apple Stores
1 day ago
Apple Pulls Keynote, Pages and Numbers From App Store [Update: Back]
Apple Pulls Keynote, Pages and Numbers From App Store [Update: Back]
1 day ago
Apple Updates More Apps With iPhone Duo Support
Apple Updates More Apps With iPhone Duo Support
1 day ago
Apple Will Label Apps 'Made for iPhone Duo' in App Store
Apple Will Label Apps 'Made for iPhone Duo' in App Store
1 day ago
Amazon Takes $49 Off iPad With Prices Starting at $399.99
Amazon Takes $49 Off iPad With Prices Starting at $399.99
1 day ago
F1 on Apple TV Now Available in Dolby Atmos
F1 on Apple TV Now Available in Dolby Atmos
1 day ago
Apple Reveals More Than 50 Apps That Will Be Updated for iPhone Duo
Apple Reveals More Than 50 Apps That Will Be Updated for iPhone Duo
1 day ago
Apple Blocks Certificates That Could Help Attackers Fake Websites
Apple Blocks Certificates That Could Help Attackers Fake Websites
1 day ago
Giant iPhone Duo Installations Spotted at Apple Fifth Avenue
Giant iPhone Duo Installations Spotted at Apple Fifth Avenue
1 day ago
iPhone Duo 2 Prototypes Include Under-Display Face ID
iPhone Duo 2 Prototypes Include Under-Display Face ID
1 day ago
Tesla App Gains iPad and iPhone Duo Support
Tesla App Gains iPad and iPhone Duo Support
2 days ago
Apple Reportedly Boosts iPhone Duo Orders by 44%
Apple Reportedly Boosts iPhone Duo Orders by 44%
2 days ago