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Dexcom help center

Browse Dexcom FAQs by topic:

Dexcom G7 CGM SystemDexcom G6 CGM SystemClarity Reporting SoftwareFollow App for family & friends

Dexcom G7 training videos

  • More videos and training

Inserting your Dexcom G7 sensor

Tips and tricks for seamless insertion.

How to get started and set up the Dexcom G7 app

Find out how to use your Dexcom app to start tracking your data.

Dexcom G7 accuracy

Learn more about the accuracy of your Dexcom CGM and the difference between blood glucose monitor and CGM readings.

Dexcom G6 training videos

Inserting your Dexcom G6 sensor and attaching your transmitter

Tips and tricks for a seamless insertion.

How to get started and set up the Dexcom G6 app

Find out how to use your Dexcom app to start tracking your data!

Pairing your transmitter

Learn how to replace your Dexcom transmitter with these simple steps.

Dexcom G7 Learning Center

Dexcom is here to support you on your journey with us, we’ll show you how to get the best out of your Dexcom G7 and where to find additional help and guidance.
  • Go to G7 Learning Center
  • Search Dexcom CGM FAQs
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Upgrading to Dexcom G7 is simple if you use Dexcom G6!

Dexcom G7 has all the capabilities you know and love about Dexcom G6, with some amazing new upgrades; we can’t wait for you to experience it.
If you currently use Dexcom G6 with a connected insulin pump or pen,* we recommend continuing with Dexcom G6 until compatibility with your pump or pen is added to Dexcom G7. We’re working with our insulin delivery partners to integrate with Dexcom G7 as soon as possible.
Click the link below to learn more about upgrading.
  • Upgrading to Dexcom G7

Need additional help?

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Submit a tech support request

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Request Dexcom G6 sensor overpatches

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Chat with live tech support

Compatible smart devices sold seprately. For a list of compatible devices, visit dexcom.com/compatibility
BRIEF SAFETY STATEMENT: Failure to use the Dexcom G6 Continuous Glucose Monitoring System (G6) and its components according to the instructions for use provided with your device and available at https://www.dexcom.com/safety-information and to properly consider all indications, contraindications, warnings, precautions, and cautions in those instructions for use may result in you missing a severe hypoglycemia (low blood glucose) or hyperglycemia (high blood glucose) occurrence and/or making a treatment decision that may result in injury. If your glucose alerts and readings from the G6 do not match symptoms, use a blood glucose meter to make diabetes treatment decisions. Seek medical advice and attention when appropriate, including for any medical emergency.
BRIEF SAFETY STATEMENT: Failure to use the Dexcom G7 Continuous Glucose Monitoring System (G7) and its components according to the instructions for use provided with your device and available at https://www.dexcom.com/safety-information and to properly consider all indications, contraindications, warnings, precautions, and cautions in those instructions for use may result in you missing a severe hypoglycemia (low blood glucose) or hyperglycemia (high blood glucose) occurrence and/or making a treatment decision that may result in injury. If your glucose alerts and readings from the G7 do not match symptoms, use a blood glucose meter to make diabetes treatment decisions. Seek medical advice and attention when appropriate, including for any medical emergency.
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