Blood glucose monitoring is one of the most-requested Apple Watch features — and Apple just took a big toward making it a reality.
The Apple Watch is an incredible health wearable. From step tracking and sleep tracking to 24/7 heart rate monitoring and ways to take ECG and SpO2 readings, there’s not much it can’t do. But one of its biggest missing features has long been blood glucose monitoring. It’s a feature we’ve heard murmurings about for years and years, and according to one new report, it may finally be happening.
How blood glucose monitoring could work How’s Apple doing it? Per the report, Apple is using a technology called “silicon photonics” combined with “optical absorption spectroscopy” measurements. The report says it works via “lasers to emit specific wavelengths of light into an area below the skin where there is interstitial fluid — substances that leak out of capillaries — that can be absorbed by glucose.
As it currently stands, the proof-of-concept device Apple developed is about the size of an iPhone and is worn on someone’s arm. A previous version of the prototype was so big that it needed a laptop to function. Apple has a lot of work left to get the technology to fit inside the chassis of an Apple Watch, but this is still a remarkable step forward in a technology so many have been anxiously waiting for.
That means we shouldn’t expect blood glucose monitoring in the Apple Watch Series 9 later this year, and probably not in the eventual Series 10. Could it be ready in 2025? Maybe 2026? Possibly! But this early on, it’s difficult to say with any level of certainty.
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