Support Center

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



A question about your order?

Find answers to the most common questions on ordering, payment, shipping and warranties.


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Your user guides

Your Dexcom ONE user guides are also available to download in pdf format.

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Smartphone compatibility

Check the compatibility of your smartphone with the Dexcom ONE app.

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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.