Need phone support? Request a callback. Visit our improved Help page for answers to frequent questions

Step 3 - Your first days with Dexcom ONE
How to replace your sensor
Making diabetes treatment decisions with your Dexcom system readings*
*If your glucose alerts and readings from the Dexcom ONE do not match symptoms or expectations, use a blood glucose meter to make diabetes treatment decisions
Need better sensor adhesion?
Add our free overlay patches to your next order.

Our overlay patches can help keeping the sensor well in place on your skin. You can add them for free to your basket with any purchase of a 3-sensor box or with our subscription plans.

Subscribe and save!
Dexcom ONE Flexi Plans

Get all your Dexcom ONE supplies delivered to your door, with automated payments and shipments. The easiest way to enjoy the full-time wear of Dexcom ONE, whilst making the best savings! And without any commitment: you can pause or cancel your subscription at any time.