The Dexcom ONE Sensor is a continuous glucose monitoring (CGM) device designed for people with diabetes to track their glucose levels in real time. Worn on the skin, the small sensor continuously measures glucose in the interstitial fluid and sends readings to a compatible smartphone or receiver.

This allows users to see their glucose trends, spot patterns, and make informed decisions about diet, medication, and lifestyle. The Dexcom ONE Sensor provides updates every few minutes, reducing the need for routine finger-prick tests. Each sensor is easy to apply and typically lasts up to 10 days, offering a convenient and discreet way to manage diabetes.