A new version of the Dexcom ONE app will be released soon. After the update, your low and high alert settings will be reset. Click here for more information

Step 1 –Learn about the basics of Continuous Glucose Monitoring
What is CGM ?
What is Continuous Glucose Monitoring ?
Dexcom sensor on man's abdomen and child with parents showing his mobile
How your Dexcom system works
Dexcom sensor how to release on body
5 benefits of using a Dexcom system
Have you checked your smartphone compatibility ?

The Dexcom ONE app can work only with the smartphones listed on our compatibility page. Have a look before you purchase your starter kit.

Two phones showing Dexcom App with Dexcom ONE sensor
Frequent questions about Continuous Glucose Monitoring