Dexcom One Sensor for Diabetes Monitoring

Dexcom One Sensor for Diabetes Monitoring

Dexcom One Sensor for Diabetes Monitoring

Real time glucose numbers you can count on. Thanks to the exceptional accuracy of Dexcom ONE CGM, you can make treatment decisions, like insulin dosing, without finger pricks or scanning. Dexcom ONE doesn’t require any calibration to deliver accurate readings unlike other blood glucose monitoring systems.

If your glucose alerts and readings from the Dexcom ONE do not match symptoms or expectations, use a blood glucose meter to make diabetes treatment decisions. Alerts tell you when you’re high or low.

Dexcom ONE Sensor

  • 3 units (each sensor lasts up to 10 days)
  • Measures glucose levels just under the skin
  • Can be used for up to 10 days
  • Is water-resistant (e.g. shower, swimming)

Dexcom ONE Transmitter

  • 1 unit
  • Sends glucose readings every 5 minutes to your compatible smartphone
  • Lasts 90 days – will be re-used across multiple sensors

Dexcom ONE App

The Dexcom ONE App is available for free on Apple or Android app stores. It provides glucose readings and High/Low alerts. A compatible smartphone is required.


Dexcom ONE can also be used with an optional receiver. For a list of compatible devices, visit

Frequently Asked Questions

How long does the Dexcom ONE Sensor last?

Each sensor lasts up to 10 days.

Is the Dexcom ONE Sensor water-resistant?

Yes, it is water-resistant, allowing you to wear it while showering or swimming.

Can I use the Dexcom ONE App on any smartphone?

No, the Dexcom ONE App requires a compatible smartphone. Please check the list of compatible devices on the Dexcom website.


The Dexcom One Sensor for Diabetes Monitoring provides real-time glucose monitoring without the need for finger pricks or scanning. With exceptional accuracy and no calibration required, it allows for easy treatment decisions. The Dexcom ONE App and Transmitter ensure that you receive glucose readings and alerts on your compatible smartphone. Stay in control of your diabetes with Dexcom One.