The Dexcom G7 continuous glucose monitor (CGM) will now last 15 days, up from the previous 10-day version. 

The US Food and Drug Administration’s clearance of the extended-wear Dexcom G7 device for adult users makes it the longest-lasting CGM wearable. Its 8.0% mean absolute relative difference is the most accurate in its class, the company said in a statement. 

The 15.5-day version is expected to be available in the second half of 2025. It will retain features of the current 10-day version, including Apple watch compatibility, automated meal and activity logging, the 12-hour grace period for replacing finished sensors, and the ability for remote sharing of glucose data. 

Dexcom is working with its insulin pump partners to ensure that the Dexcom G7 15-day will be compatible with automated insulin delivery systems at the time of launch. 

“Data recently released during the 18th international Advanced Technologies and Treatments for Diabetes conference in Amsterdam supports that G7 15 Day is the most accurate CGM for adults,” Satish Garg, MD, of the Barbara David Center for Diabetes at the University of Colorado School of Medicine, said in the statement. 

Miriam E. Tucker is a freelance journalist based in the Washington DC area. She is a regular contributor to Medscape, with other work appearing in the Washington Post, NPR’s Shots blog, and Diatribe. She is on X (formerly Twitter) @MiriamETucker and BlueSky @miriametucker.bsky.social