Support Center
All the resources you need to learn how to use your Dexcom ONE system and get in touch with our teams.
Frequent questions about 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.
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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.