Your learning journey with
Dexcom ONE
Follow these simple steps to discover what you need to know about setting up and using your Dexcom ONE real-time Continuous Glucose Monitoring (CGM) System.
Dexcom is here to support you on your journey with us, we’ll show you how to get the best out of your Dexcom ONE and where to find additional help and guidance.
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Learn the basics of Dexcom ONE Continuous Glucose Monitoring (CGM) System

Understanding your diabetes and how to manage it effectively is an essential part in improving long-term complications. These short education videos will provide you with the basics you should know about diabetes melitus, insulin therapy, how Continuous Glucose Monitoring (CGM) works can help you manage your diabetes journey.
Introduction to Continuous Glucose Monitoring
Not sure how CGM works? This educational video will describe the mechanisms of CGM, the difference between blood glucose monitors and CGM and how real time continuous glucose monitoring (rtCGM) can help people living with diabetes to closely monitor their glucose levels, manage insulin dosing and help reduce HbA1c1,2,3.

What is CGM?

Continuous Glucose Monitoring means that you will always get the full picture of your glucose levels, day and night. This educational video will demonstrate the difference between blood glucose monitoring and rtCGM, and demonstrate how Dexcom ONE can simplify diabetes management.
What is Diabetes?
Ever wanted to know more about your Diabetes? This educational video will explain the differences between Type 1, Type 2 and Gestational Diabetes, and how this affects you as a person living with any of these conditions.
Insulin and Diabetes Management
Want to learn more about Insulin? This educational video will describe how insulin works, different types of insulin available and why it is important for management in people living with diabetes.

How Dexcom CGM System works - Dexcom ONE

Want to understand how Dexcom ONE rtCGM Systems work? This informative video will explain how the sensor measures glucose levels and relays information to your smartphone or receiver providing actionable information regarding your glucose levels.
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Using your smartphone?

Dexcom real-time CGM systems work only with the smartphones listed on our compatibility page.*
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Ready to get started?

Now you know how real-time CGM can help, itʼs time to set up your Dexcom ONE system.
*For a list of compatible smart devices, visit
1. Soupal J. et al. COMISAIR Study. Diabetes Care. 2020 Jan;43(1):37-43.
2. Beck. RW. et al. DIAMOND RCT. JAMA. 2017;317(4):371-378.
3. Martens t. et al. JAMA. 2021;325(22):2262–2272.

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