Dexcom ONE Mobile App

How do I set up alerts in my Dexcom ONE app?

Last Updated · March 21, 2022

Please go to your Dexcom ONE app, click on Settings -> Alerts


Tap the alert you want to set and follow the screen prompts to set your preferred alert level and tone. Work with your healthcare professional to customize your alerts to help you achieve your goals.

5-step learning journey

Discover education resources, organised in a 5-step journey, to learn key information about your Dexcom ONE CGM system, from getting started, your first 10 days, to using Dexcom ONE in the long run.

Step 1: The basics of CGM
Step 2: Getting started
Step 3: Your first 10 days
Step 4: Using Dexcom ONE in the long run
Step 5: Understand your Diabetes trends