Apple Watch Blood Glucose Monitoring Likely Still 'Three to Seven Years' Away

Blood glucose monitoring technology designed for the Apple Watch is unlikely to launch for several years, Bloomberg journalist Mark Gurman believes.

Apple Watch Blood Glucose Monitoring Feature 2
In February, Gurman reported that Apple has made major progress with its noninvasive blood glucose monitoring technology, allowing diabetics and others to test their blood glucose levels without needing to prick the skin for blood testing.

Apple's system apparently uses a silicon photonics chip to shine light from a laser under the skin to determine the concentration of glucose in the body. In Bloomberg's "Power On" newsletter, Gurman said that Apple "still needs to perfect the algorithms and on-board sensors" to bring the technology to market. Crucially, the company also needs to "shrink it down to the size of a module that can fit in the small and thin package that is an Apple Watch." Gurman believes this process "will take another three to seven years at least."

Apple began working on alternative glucose monitoring methods following its aquisition of RareLight in 2010. The company then used a startup called Avolante Health LLC to develop the technology at a secret facility before moving it to the Exploratory Design Group (XDG).

Apple has been conducting human trials for the past 10 years and seeks to be able to warn Apple Watch users if they are prediabetic to encourage lifestyle changes before diabetes develops. It is believed to be holding early discussions about getting regulatory approval for the technology.

Related Forum: Apple Watch

Popular Stories

ios 26 1 slide to stop

iOS 26.1 Brings Back 2007 Feature in New Way

Friday October 31, 2025 1:40 pm PDT by
The upcoming iOS 26.1 update includes a small but helpful change for iPhones, and it could prevent you from running late to something important. Specifically, when an alarm goes off in the Clock app, there is a new "slide to stop" control on the screen for turning off the alarm. On previous iOS 26 versions, there is simply a large "stop" button, which could be accidentally tapped. The new ...
M5 MacBook Pro

Waiting for New Macs? Apple Just Shared Bad News

Friday October 31, 2025 7:32 am PDT by
Apple has just given a strong indication that it will not be releasing any additional new Macs for the remainder of the year. Apple's CFO Kevan Parekh dropped the hint during the company's earnings call on Thursday:On Mac, keep in mind, we expect to face a very difficult compare against the M4 MacBook Pro, Mac mini, and iMac launches in the year-ago quarter.Parekh essentially gave a heads up ...
iPhone 17 Pro Cosmic Orange

8 Reasons to Wait for Next Year's iPhone 18 Pro

Thursday October 30, 2025 4:42 am PDT by
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models at the same time, which is why we often get rumored features months ahead of launch. The iPhone 18 series is no different, and we already have a good idea of what to expect for the iPhone 18 Pro and iPhone 18 Pro Max. One thing worth...
iOS 26

6 New Things Your iPhone Can Do in iOS 26.1

Wednesday October 29, 2025 4:22 am PDT by
Apple is about to drop iOS 26.1, the first major point release since iOS 26 was rolled out in September, and there are at least six notable changes and improvements to look forward to. We've rounded them up below. Apple has already provided developers and public beta testers with the release candidate version of iOS 26.1, which means Apple will likely roll out the update to all compatible...
Apple Foldable Thumb

iPhone Fold: Launch, Pricing, and What to Expect From Apple's Foldable

Friday October 31, 2025 8:52 am PDT by
Apple is expected to launch a new foldable iPhone next year, based on multiple rumors and credible sources. The long-awaited device has been rumored for years now, but signs increasingly suggest that 2026 could indeed be the year that Apple releases its first foldable device. Below, we've collated an updated set of key details that have been leaked about Apple's foldable iPhone so far. Ove...
Coffee Burgundy and Purple iPhone 18 Pro Mock 1

Leaker Outlines Potential New Colors for iPhone 18 Pro

Friday October 31, 2025 8:28 am PDT by
Apple's iPhone 18 Pro models could be available in new rich and warm color option, according to a known leaker. The Weibo user known as "Instant Digital" today suggested that next-year's iPhone 18 Pro models will be available in at least one of the following color options: Coffee, purple, and burgundy. The iPhone XR, iPhone 11, iPhone 12, iPhone 14, and iPhone 14 Pro were all available in ...
apple tv hd

Apple Launched Its Big New Vision for TV 10 Years Ago Today

Thursday October 30, 2025 8:58 am PDT by
Apple launched the Apple TV HD, the Siri Remote, tvOS, and their accompanying App Store a decade ago today, marking a major overhaul of the device. The new vision for the Apple TV was unveiled on September 9, 2015 during Apple's "Hey Siri" event in San Francisco, where CEO Tim Cook introduced the device with the statement, "The future of TV is apps." The announcement represented a major...
iOS 26

Apple This November: iOS 26.2 Beta, Rumored New Products, and More

Thursday October 30, 2025 12:42 pm PDT by
Tomorrow is Halloween, and then November is upon us. Below, we outline what to expect from Apple next month, as the slower holiday season approaches. Apple is expected to kick off November by releasing iOS 26.1, iPadOS 26.1, macOS 26.1, watchOS 26.1, tvOS 26.1, and visionOS 26.1. With beta testing now wrapped up, the updates will likely be released this Monday, November 3 or Tuesday,...
iOS 26

iOS 26.1 Coming Soon: New Features for Your iPhone and Release Date

Monday October 27, 2025 7:55 am PDT by
The upcoming iOS 26.1 update includes a handful of new features and changes for iPhones, including a toggle for changing the appearance of the Liquid Glass design, "slide to stop" for alarms in the Clock app, and more. Below, we outline key details about iOS 26.1. Release Date Given that Apple has yet to seed an iOS 26.1 Release Candidate, which is typically the final beta version, the...
iOS 18 Siri Personal Context

Apple CEO Tim Cook Says Revamped Siri on Track to Launch Next Year

Thursday October 30, 2025 1:50 pm PDT by
Apple CEO Tim Cook today said that a more personalized version of Siri remains on track to launch at some point next year, with the new set of features expected to debut on the iPhone as part of iOS 26.4 in March or April. "We're also excited for a more personalized Siri," said Cook, on Apple's earnings call for the third quarter of the 2025 calendar year. "We're making good progress on it,...

Top Rated Comments

TheYayAreaLiving ?️ Avatar
34 months ago
This is probably the most anticipated feature. Hopefully, Apple can actually pull it off.
Score: 24 Votes (Like | Disagree)
izyreal Avatar
34 months ago
This is one of those features where I’ll believe it when I see it. I suspect it’ll never be done.
Score: 18 Votes (Like | Disagree)
BobSc Avatar
34 months ago

I suspect it’ll never be done.
Years ago, to determine blood oxygenation for a patient required a direct needle stick into the radial artery, a potentially dangerous procedure. Today a pulse oximeter, a very small electrical device, is simply applied to the end of a finger and almost instantly reads the O2 saturation and pulse. No one would have predicted this at the time of the needle sticks. Yet, here we are with a simpler and safer way to do this. Science is amazing for those who believe in science. Those that don't believe in science will be very pessimistic about future advances in medicine.
Score: 11 Votes (Like | Disagree)
filmantopia Avatar
34 months ago

This is one of those features where I’ll believe it when I see it. I suspect it’ll never be done.
They've apparently already had the breakthrough that proves it's possible. It's just shrinking it down at this point. Sometimes big advances do happen. When they do, some of us aren't ready for it because we've always only lived in the world before X was possible.
Score: 10 Votes (Like | Disagree)
senttoschool Avatar
34 months ago
If it's easier, they should add this feature to the wrist band and sell a special edition of either the Watch or wristband depending on if it can be removed.

The benefit would outweigh the ability to switch bands.
Score: 8 Votes (Like | Disagree)
RalfTheDog Avatar
34 months ago
This is not intended to judge how much insulin you need. This is intended more for lifestyle changes. When you eat this food, what does it do to your glucose? When you run five miles, what does that do to your glucose? It does not need to be accurate enough to tell you how much of a shot you need to save lives. It could prevent many people from ever needing to start insulin.
Score: 7 Votes (Like | Disagree)