Skip to main content
  1. Home
  2. Wearables
  3. Health & Fitness
  4. News

Apple Watch heart-rate sensor can detect diabetes with 85 percent accuracy

Add as a preferred source on Google

It’s only been a few months since the Apple Watch began testing the waters as a tried-and-true medical device. But already, the wearable is proving its mettle. As per the latest study from Cardiogram founder Brandon Ballinger, the Apple Watch is capable of detecting diabetes with an 85 percent accuracy rate. There is a caveat to that figure, however — it only stands for patients who have previously been diagnosed with diabetes already.

All the same, the study suggests that the Apple Watch could be a viable healthcare accessory moving forward. The research examined data from 14,000 Apple Watch owners, and determined that 462 had diabetes by using the heart-rate sensor in the watch. How was it able to do so? According to the 2015 Framingham Heart Study, diabetes patients have heart rates that vary from healthy individuals. As such, the Watch’s heart-rate sensor could theoretically detect these irregular heart rates, and consequently, identify a diabetes patient.

As TechCrunch points out, this is the same sort of sensor other fitness wearables use, which means that this capability likely isn’t restricted to the Apple Watch.

This is by no means the only disease that wearables may be able to detect. Ballinger previously used the Apple Watch to identify an abnormal heart rhythm with up to a 97 percent accuracy when used in conjunction with Cardiogram’s AI-based algorithm. The Watch has also been able to identify sleep apnea and hypertension with impressive accuracy rates. And Ballinger wants to see exactly how useful the Apple Watch and other fitness wearables may be in the diagnostic realm — he and his team hope to examine a wide range of diseases capable of being sussed out by heart sensors.

If further research proves successful, it could be an enormous boon to the health care industry. After all, early detection is key to reducing other diseases, not to mention treatment costs. This most recent study is certainly promising — it’s the first large-scale study to show that normal heart-rate sensors (at least when paired with AI-based algorithms) can identify diabetes without using other expensive equipment.

Lulu Chang
Fascinated by the effects of technology on human interaction, Lulu believes that if her parents can use your new app…
Google’s new Android XR tools let developers test apps without needing to buy expensive smart glasses
Google has also added new Android CLI tools to help AI coding agents test apps and catch performance issues.
Gentle Moster smart glasses powered by Android XR

At the 2026 Android Dev Summit, Google has announced some interesting features coming to both Android XR and Android CLI. Developers can now build and test apps for smart glasses without owning the hardware, while Android's command-line tools are getting upgrades that help AI coding agents test applications and identify performance problems. Both announcements could eventually mean better apps for both Android and extended reality hardware users.

Building Android XR apps without owning smart glasses

Read more
Some Galaxy Watches may be too old for Samsung’s biggest sleep apnea upgrade
Samsung is adding three levels of breathing disturbance data, but the full feature won’t reach every watch that supports basic apnea detection
Body Part, Hand, Person

Samsung is making its Galaxy Watch sleep apnea tracking more useful than a simple warning. The upgraded system estimates how often breathing disturbances occur each hour, then sorts the result into three frequency levels.

There’s a catch for anyone holding onto an older model. Detailed results require Wear OS 7.0 or later, while watches stuck on older software will keep simpler alerts.

Read more
A tiny smart patch could help you get your workout form right
The experimental wearable could help you understand your workout form without relying solely on a trainer's eye.
Actual image of wearable sensor patch along with its electronic module

Not everyone can afford to hire a personal trainer. And let’s be honest, learning exercises from YouTube or the gym regulars isn’t exactly foolproof. We need a solution that is both affordable and accurate.

A research group at the Indian Institute of Technology Gandhinagar (IITGN), led by Dr Biswajit Saha, has a solution. He created a bendy wearable sensor that works in the gym and for sports like tennis and swimming.

Read more