09/04/2026
I put the Dexcom G7 and Instinct CGM head-to-head to see how similar the numbers would be.
My take? Overall, pretty close.
For a little context, both report an adult MARD around 8.2%—but MARD is a population-level measure of sensor accuracy, not a guarantee that two sensors will give you the exact same number at the exact same moment.
And honestly, this is why I don't think there's one “best” CGM for everyone with T1D.
The best one is the one that works well for you—including the accuracy, app interface, alarms, wear experience, pump compatibility, and how you actually like using the technology.
The tech should fit your diabetes management, not the other way around. 💛