Is Dexcom Stelo as accurate as Dexcom G7?

Dexcom Stelo and Dexcom G7 have very similar accuracy. Stelo has a Mean Absolute Relative Difference (MARD) of approximately 8.3%, while the Dexcom G7 ranges from about 8.0% to 8.2% depending on the version. For most users, the difference is not clinically significant, and both devices provide highly accurate glucose readings compared with traditional fingerstick testing.

Can people with Type 1 diabetes use Dexcom Stelo?

No. Dexcom Stelo is not intended for people with Type 1 diabetes or anyone who uses insulin. It does not provide low-glucose alerts, urgent alarms, or integration with insulin pumps. People with Type 1 diabetes generally require a prescription CGM such as the Dexcom G7 that includes real-time safety features and diabetes management tools.

Does Dexcom Stelo require a prescription?

No. Dexcom Stelo is available over the counter in the United States and does not require a prescription. Adults age 18 and older can purchase it directly from Dexcom and select retailers. Dexcom G7 remains a prescription CGM that typically requires approval from a healthcare provider.

Is Dexcom Stelo covered by insurance or Medicare?

Currently, Dexcom Stelo is generally not covered by private insurance or Medicare because it is sold as an over-the-counter glucose biosensor. Dexcom G7 may be covered by commercial insurance, Medicare, or Medicaid for eligible individuals with diabetes, which can significantly reduce out-of-pocket costs.

Which is better for prediabetes, Dexcom Stelo or Dexcom G7?

The best option depends on your goals and medical needs. Dexcom Stelo is specifically designed for adults with prediabetes, type 2 diabetes not using insulin, and individuals interested in understanding how food, exercise, and lifestyle affect glucose levels. Dexcom G7 is designed for diabetes management and includes alerts, caregiver sharing, and advanced monitoring features that may be unnecessary for many people with prediabetes.

What is the biggest difference between Dexcom Stelo and Dexcom G7?

The biggest difference is that Dexcom Stelo is an over-the-counter glucose biosensor focused on lifestyle and glucose awareness, while Dexcom G7 is a prescription continuous glucose monitor designed for medical diabetes management. G7 includes real-time alerts, insulin pump compatibility, caregiver sharing, and a wider glucose measurement range, whereas Stelo focuses on education and metabolic insights without medical alert features.

G7 User Experience

Reviews

Stelo vs Dexcom G7: The Complete CGM Comparison Guide
Bydiabetesknow August 27, 2025June 16, 2026

Read More Stelo vs Dexcom G7: The Complete CGM Comparison Guide