Apple would bet even more on the health aspect of its connected watch. The next Apple Watch could well be the first to carry a blood glucose meter. The rumor is not new, it had even been mentioned for the latest generation of Apple watches, the Series 6, without success. Adding a tool for measuring blood sugar has been studied for a while in Cupertino, but 2021 could well be the year of its implementation. Indeed, Apple has just filed four patents with the USPTO, the American body that regulates this type of document, which goes in the direction of an analysis of blood sugar in a non-intrusive way.
The magic of terahertz waves
Indeed, it is traditionally necessary to take a small drop in the blood to perform this analysis. In recent years, devices have made it possible to measure blood sugar without pricking, they are said to be non-invasive and painless. Most of them work thanks to the measurement of electromagnetic waves reflected by the blood. This is the same method that Apple would like to use, based on the terahertz frequency band, hence the need for a new patent. This frequency base extends between 0.1 and 10 THz. In the electromagnetic spectrum this corresponds to a soft radiation which oscillates between that of the microwave and of a TV remote control.
Medical imaging is one of the sectors that uses the most terahertz waves, so it’s no surprise that Apple is taking an interest in expanding the capabilities of its Apple Watch. Blood sugar measurement is not only a health issue, it is also a market with great potential for Apple. This is undoubtedly the reason why Tim Cook would have set up a team dedicated to its integration into watches from 2017. If the brand’s calendar is extended, the Series 7 would arrive next September alongside the iPhone 13.