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

Using Dexcom ONE in the Long Run

Why can’t I hear my Dexcom ONE alerts?

Last Updated · September 28, 2021

If you cannot hear your Dexcom ONE alerts, check the following:

  1. Alerts are turned on: You receive no glucose alerts unless you turn them on. If you did not turn on alerts during setup, go to Settings > Alerts to turn them on.
  1. Your phone settings: Dexcom ONE alerts will NOT override your phone’s settings. You won’t hear high or low glucose alerts if your phone is set to silent (sound is off) or vibrate.
    • If alerts are turned on, and your device is set to sound, verify that the app, Bluetooth, volume, and notifications are on.
    • See Chapter 2 in the Dexcom ONE User Guide for suggested smart device settings. See your smart device product instructions to test the speaker.

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