Continuous Glucose Monitoring (CGM) devices have become a cornerstone for diabetes management in the United States, offering real-time blood glucose data, enhanced safety, and convenience for millions with Type 1 and Type 2 diabetes. They also appeal to a broader audience seeking proactive health monitoring.
What Are Continuous Glucose Monitoring Devices?
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Wireless, real-time CGM with readings every 5 minutes.
Integrates with insulin pumps and major mobile platforms.
Smallest sensor yet, with advanced customizable alerts.
Highly regarded for accuracy and ease of use.
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"Flash" and real-time sensors with readings every minute.
Slim design; does not always require fingersticks.
Scan or tap your phone to receive readings.
Known for affordability and over-the-counter access in many states.
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Longest-lasting implantable sensorโup to 180 days per sensor.
Blood-free readings and vibration alerts for out-of-range levels.
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Pair FDA-cleared sensors with smartphone apps for deeper analysis, nutritionist integration, or weight management.
Best for those seeking lifestyle tracking beyond diabetes management.
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Real-time tracking via phone, smartwatch, or dedicated receiver
Customizable alerts for hypoglycemia/hyperglycemia
Discrete, wearable designโno constant finger pricks
Highly accurate, with FDA-cleared devices now available over the counter
Integration with fitness and diabetes apps; some work with insulin pumps or "closed loop" systems
Costs and Insurance Coverage (2025)
Without insurance: Typical costs range from $89/month for over-the-counter sensors to $270/month for premium app-integrated plans. Annual costs generally fall between $1,200 and $3,600, though premium programs can be higher.
With insurance: Most plans (including Medicare) now cover mainline CGMs (Dexcom, FreeStyle Libre) for eligible patients with diabetes at little or no out-of-pocket cost. Coverage varies for non-diabetic or "wellness" users.
Discounts: GoodRx, manufacturer copay programs, and patient assistance are widely available for Dexcom, FreeStyle Libre, and others
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https://www.cnet.com/health/medical/best-continuous-glucose-monitors/
https://diabetes.org/advocacy/cgm-continuous-glucose-monitors
https://www.globenewswire.com/news-release/2025/05/30/3091108/0/en/Continuous-Glucose-Monitoring-Devices-Market-Size-expected-to-reach-US-32-97-billion-by-2031-Increasing-Demand-for-Effective-Diabetes-Management-Propels-Growth.html
https://diabetesjournals.org/care/article/48/Supplement_1/S146/157557/7-Diabetes-Technology-Standards-of-Care-in
https://apnews.com/article/continuous-glucose-monitor-cgm-diabetes-75469f79bc649cab0d831e6ec52758a7
https://www.healthline.com/health/diabetes/best-glucose-monitors
https://www.nutrisense.io/what-is-a-cgm/cost