Samsung’s New Patent Reveals How a Galaxy Watch Could Measure Blood Sugar

Samsung has unveiled a new patent that outlines a potential method for a Galaxy Watch to measure blood sugar levels indirectly. This revelation comes as Samsung has previously confirmed its ongoing research into noninvasive continuous glucose monitoring. According to the patent, filed in September 2024, the wearable device would rely on an external device to provide a blood glucose reading, which it would then use to calibrate biometric data collected by the device itself.

The process involves the wearable collecting a biometric signal from the user at the same time as the external device's glucose measurement. By combining these two data points, the device can generate calibration data that could subsequently be used to estimate glucose values from the wearable's biometric signals. While the patent does not specify a particular Galaxy Watch model or guarantee its implementation, it provides a fresh perspective on Samsung's research efforts.

Samsung's executive vice president, Jong-min Choi, stated that the company is pursuing noninvasive continuous glucose monitoring through various means, including global technology exploration and collaboration with external startups. However, Samsung has not announced any plans to commercialize a Galaxy Watch capable of independently measuring blood glucose.

The FDA has cautioned consumers against smartwatches and smart rings that claim to independently measure or estimate blood glucose without piercing the skin. Therefore, individuals relying on such readings for medical decisions should continue using appropriately authorized glucose-monitoring technology.