Support Center
Frequent questions about Dexcom ONE
Getting Started with Dexcom ONE: Your 5-step learning journey
Discover education resources, organised in a 5-step journey, to learn key information about your Dexcom ONE system.
Step 2 – Getting started with Dexcom ONE
Step 3 – Your first 10 days with Dexcom ONE
Step 4 – Using Dexcom ONE in the long run
Step 5 – Understand your Diabetes Trends
A question about your order?
Find answers to the most common questions on ordering, payment, shipping and warranties.
Your user guides
Your Dexcom ONE user guides are also available to download in pdf format.
Smartphone compatibility
Check the compatibility of your smartphone with the Dexcom ONE app.
Technical Support form
Get in touch with our Technical Support team using our online form.
Contact Dexcom
We're here to help! Check our contact section to get in touch with the appropriate Dexcom team.