Dexcom has officially entered the 15 day arena with its newest version of the Dexcom G7 sensor. With a full 15 days of wear and a 12 hour grace period, this update gives the users the most time for between CGM changes.

The updated sensor delivers 50% more wear time while keeping the same physical design and adhesive. Instead of rolling out new hardware Dexcom focused on refining its software. An updated algorithm processes and interprets glucose data more efficiently, and Dexcom’s 15 Day now reports a MARD (accuracy) of 8.0%, a slight improvement from the 10 day’s 8.2%. Although the promise of longer wear is exciting, according to a Dexcom study, some sensors may still fall short of the full 15 days.

There are also limits at launch. The 15 day G7 is cleared only for adults 18 and older. Younger users will continue with the 10 day G7 for now, and Dexcom has not announced plans for expanded age clearance.

On the pump side, compatibility is already rolling out for automated insulin pumps. Omnipod 5 and the Beta Bionics iLet support the Dexcom 15 Day at launch. Tandem users will need to wait for integration work that is still in progress.

Meanwhile, competition is growing for Dexcom. Abbott offers the Libre 3 Plus with 15 day wear and clearance down to age two, and Medtronic is offering the Instinct which lasts 15 days for those seven years and older. With more choices available, users can select the CGM that best fits their age, lifestyle, and tech ecosystem.

For a deeper look into what the Dexcom 15 Day and what we expect from Dexcom going forward, you can watch the video above. Let us know your thoughts on the new sensor and how your sensors have been holding up in the comments below.

Disclaimer: Diabetech content is not medical advice—it’s for educational purposes only. Always consult with a physician before making changes to your healthcare.