Apple CEO Tim Cook Spotted Testing Apple Watch-Connected Glucose Monitor - MacRumorsOpen MenuShow RoundupsShow Forums menuVisit ForumsOpen Sidebar
Skip to Content

Apple CEO Tim Cook Spotted Testing Apple Watch-Connected Glucose Monitor

Apple CEO Tim Cook has allegedly been spotted testing a prototype glucose monitor that's connected to his Apple Watch, reports CNBC. Cook, who is said to be aiming to understand how his blood sugar is affected by food and exercise, has been seen wearing the device around the Apple Campus.

Cook also mentioned the glucose monitor in a February meeting with students at the University of Glasgow. It's not clear if the device he spoke of in Glasgow is the same one he's been wearing around the Apple campus.

"I've been wearing a continuous glucose monitor for a few weeks," he said. "I just took it off before coming on this trip."

Cook explained that he was able to understand how his blood sugar responded to foods he was eating. He made modifications to keep his blood sugar more constant.

Current continuous glucose monitoring systems require a small sensor that's worn under the skin to monitor glucose levels. Advanced systems from Dexcom include a transmitter, which can display glucose information directly on an iPhone or Apple Watch.

dexcomcontinuousglucosemonitoring

An iPhone-connected Dexcom continuous glucose monitoring system

Rumors have suggested glucose monitoring is the next major health issue Apple is aiming to tackle. The company is said to have a team of biomedical engineers working on developing sensors for non-invasively monitoring blood sugar levels. Apple is allegedly working on a continuous monitoring solution that would not require an under-skin sensor.

Apple's glucose testing is reportedly far enough along that the company has started conducting feasibility trials at clinical sites in the San Francisco Bay Area, and consultants have been hired to sort out regulatory issues.

According to a recent rumor from BGR, Apple could be planning to add a non-invasive glucose monitoring sensor to a future version of the Apple Watch, perhaps through the addition of a smart band that would add functionality to the Apple Watch without requiring the sensor to be built into the watch.

Cook has said in the past that Apple does not want to put the Apple Watch through the FDA approval process, something that would need to happen for Apple to introduce a glucose monitor, so a modular add-on smart band could be an ideal solution for adding more advanced health tracking features without subjecting the Apple Watch itself to FDA oversight.

Related Roundup: Apple Watch 11

Popular Stories

3 4 24 Sport Band Refresh Feature

Sketchy Rumor Claims Apple Watch Series 12 Could Introduce Sensor in Band

Friday July 3, 2026 8:54 am PDT by
The Apple Watch Series 12 could ship with a new health sensor built directly into one of its bands, according to a sketchy rumor from a known leaker. The leaker known as "Kosutami" says the sensor will be injection-molded into a silicone band, and only a silicone band, apparently because Apple has not yet solved how to embed similar hardware in bands made from other materials. No detail was...
watchos 27

Siri AI Comes to Apple Watch in watchOS 27 Beta 3

Monday July 6, 2026 1:24 pm PDT by
With watchOS 27 beta 3, Apple added support for Siri AI and the Siri app, so Apple Watch users can now use the features right from their wrist. Apple said Siri AI would be coming to the watch back when watchOS 27 was first introduced, but the feature wasn't live until now. The Dynamic App Grid that pops up when the Digital Crown is pressed displays the Siri app in the center, and the...
Apple Watch Series 10 Jet Black

Apple Watch Series 13 Rumored to Mark the End of an Era

Wednesday July 8, 2026 1:29 pm PDT by
While the Apple Watch Series 12 is still a few months away, a new rumor suggests that next year's Apple Watch Series 13 will mark the end of an era. According to a recent post from a known leaker on the Chinese social media platform Weibo, the Apple Watch will be receiving a major redesign next year, and this will apparently include a new way of attaching bands to the watch. As a result, the ...

Top Rated Comments

120 months ago
Medical and fitness uses are still the best use cases for the Apple Watch. It would be wonderful if one day it could also reliably detect heart problems before a heart attack.
Score: 19 Votes (Like | Disagree)
itsmilo Avatar
120 months ago
So where them pics at if he was spotted with it
Score: 17 Votes (Like | Disagree)
120 months ago
Good guy Tim Cook and his glucose monitor. Glucose monitors are the next big thing (tm) and a must have if you want to be cool, just like good guy Cook. However, an alcohol level monitor would certainly be useful to more people, including hipsters.
I can't find anything of value in this entire post.
Score: 15 Votes (Like | Disagree)
BMcCoy Avatar
120 months ago
They may be trying to avoid FDA on the watch, but any glucose monitoring 'device', even if built within a strap, will need some serious regulatory approvals, trials and evidence before it could be used for medical purposes.

And I hope they're doing that, because this is really exciting.
Score: 14 Votes (Like | Disagree)
DragonRider Avatar
120 months ago
Take my money and I'll help test this!!!
Score: 9 Votes (Like | Disagree)
djcerla Avatar
120 months ago
This breakthrough will translate in hundreds of millions of Watches (and iPhones) sold.
Score: 8 Votes (Like | Disagree)

🔗 Related Apple News & Rumors

Stay updated with the latest Apple ecosystem news and verified rumors