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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Understanding your diabetes trends

Dexcom Clarity on a smart device
What is Dexcom CLARITY?
The Dexcom CLARITY app highlights your glucose patterns, trends and statistics. You can even get weekly notifications with the Dexcom CLARITY Reports app. You can share this data with your diabetes healthcare team to monitor changes remotely.
View on desktop or download the mobile app from the App Store or Google Play store for quick access on your smart device.* To log in, use the same username and password details as you do for the Dexcom ONE app.
*For a list of compatible smart devices, visit
† An internet connection is required to send glucose data to Dexcom CLARITY via a compatible smart device:
Dexcom Clarity account dashboard on a laptop

Dexcom CLARITY account set up and clinic sharing

Dexcom CLARITY is an important part of your real-time CGM system. It can help you identify glucose patterns and, with your Diabetes Healthcare Team, determine the potential causes of those patterns.
  • View clinic setup guide

Dexcom ONE In-App Reports

Get familiar with the Dexcom Clarity app

Using Dexcom Clarity with your Dexcom receiver

It's time to talk time in range
Time in range is a powerful supplement to A1c because it shows a more complete picture of changes in your glucose levels, giving you insight into potentially dangerous high and low glucose variations that you don’t see with A1c.1
Different reports allow you to get the most out of each appointment.2
Users who used web-based reports and all autogenerated notifications of Dexcom Clarity spent 8.4% more time in range (3.9-10.0 mmol/l) as compared to non-users.3

Watch the video on time in range

Frequently Asked Questions

Q. How can I share my CLARITY reports with my Diabetes Healthcare Team?
  1. Tap profile
  2. Tap authorise sharing
  3. Tap accept invitation
  4. Enter the sharing code provided by your clinic
  5. Select your date of birth
  6. Tap continue
  7. Tap I consent to share my data with my clinic
  8. Tap yes, share my data

Join the Warriors

We are fiercely proud of our Dexcom Warriors – a community of like-minded people living with diabetes. You can find out more and share your story too, by joining the programme.

You've completed your training journey

We hope you are already seeing the benefits of life with Dexcom real-time CGM.
Don’t forget to follow us on Facebook, Instagram and YouTube.
This page is for supplementary purposes only, please refer to your IFU for complete instructions.
* For a list of compatible smart devices, visit
1 Battelino et al. Diabetes Care 2019; 42(8):1593-1603
2 Edelman et al. Prim Care Diabetes 2021; 15(2):199-207
3 Akturk et al. Diabetes Technol Ther 2021,23(S1):S21-S26

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