Get Help / Contact Us

We are here to help and answer any questions you might have. Below we have gathered the top queries we receive when people get in touch with us.

Most people contacting us ask these questions

Is my smartphone compatible with the Dexcom ONE app?
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Didn't find what you’re looking for?
Search below for more.

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Access our training videos

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.
  • See all questions
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Your user guides

Your Dexcom ONE user guides are also available to download in pdf format.
  • Download user guide
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Smartphone compatibility

Check the compatibility of your smartphone with the Dexcom ONE app.
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Technical Product Support

Get in touch with our Technical Support team using our online form.
Need additional help with Dexcom ONE or help placing an order?

Product support

For product troubleshooting or replacement enquiries, please complete a Product Support Request.
Office opening times: Monday to Friday 09:00 - 18:00
  • Product Support Request Form

Orders and shipment support

Our online tools provide the quickest method of solving any potential issues. You can contact our customer service and order enquiries team below:
Office opening times: Monday to Friday 09:00 - 18:00

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