Continuous Glucose Monitors (CGMs) have revolutionized diabetes management by providing real-time blood sugar readings without the need for frequent fingersticks.

In 2025, several CGMs have emerged as top choices for individuals seeking accurate and convenient glucose monitoring solutions. This article delves into the best CGMs available, highlighting their features, benefits, and how they can assist in effective diabetes management.

1. Abbott FreeStyle Libre 3

The Abbott FreeStyle Libre 3 is renowned for its compact design and rapid glucose updates. As the smallest and thinnest CGM available in 2025, it offers a comfortable and nearly invisible monitoring experience. The sensor lasts for 14 days, minimizing the need for frequent replacements. It updates glucose readings every minute and offers optional real-time glucose alarms for convenience. Its no-fingerstick calibration feature delivers a hassle-free solution for those managing diabetes.

2. Dexcom G7

The Dexcom G7 builds upon the success of its predecessors, offering superior accuracy and a sleek, discreet design. This CGM features a 10-day wear time, real-time glucose alerts, and advanced pattern recognition algorithms. The sensor is 60% smaller than its predecessor, making it more comfortable for long-term wear. The improved accuracy in the normoglycemic range is particularly beneficial for non-diabetic users, as it can detect even minor fluctuations that might show early metabolic issues.

3. Senseonics Eversense 365

The Senseonics Eversense 365 stands out due to its implantable sensor that delivers continuous glucose monitoring for up to one year. This extended wear time significantly decreases the need for frequent sensor replacements, providing convenience for users who prefer long-term solutions. The smart transmitter offers real-time glucose readings, smartphone alerts, and vibration notifications for enhanced awareness. Although it requires a minor in-office procedure for implantation, its longevity and reliability make it an appealing choice for many.

4. Medtronic Guardian 3 Connect System

The Medtronic Guardian 3 Connect System is well-regarded for its ability to detect rapid glucose fluctuations and provide proactive alerts. It monitors glucose levels every five minutes and notifies users when spikes or drops occur. This system integrates seamlessly with Medtronic insulin pumps, enhancing diabetes management for individuals using an automated insulin delivery system. It is compatible with both iOS and Android devices, ensuring wide accessibility.

5. Abbott FreeStyle Libre 4

Abbott’s latest offering, the FreeStyle Libre 4, boasts a 14-day wear time and improved accuracy, especially in the lower glucose ranges. The device introduces a novel “Metabolic Health Index” that combines glucose data with other biomarkers to provide a comprehensive view of overall metabolic wellness. It features a waterproof design, making it suitable for swimming and water activities. Continuous glucose readings are sent directly to your smartphone, and no fingerstick calibration is required.

6. Dexcom G7 Pro

The Dexcom G7 Pro offers unparalleled accuracy and a sleek, discreet design. This CGM features a 10-day wear time, real-time glucose alerts, and advanced pattern recognition algorithms. The Pro version includes extra metrics tailored for non-diabetic users, such as metabolic flexibility scores and personalized nutrition recommendations. Its ability to detect subtle glucose variations makes it an excellent choice for those looking to fine-tune their diet and lifestyle.

7. Levels Health Continuum

The Levels Health Continuum is designed for health-conscious individuals seeking to optimize their metabolic health. It features a 21-day wear time, the longest on the market, and uses machine learning algorithms to provide highly personalized lifestyle recommendations. The device offers a unique “Metabolic Age” assessment, helping users understand how their glucose regulation compares to their peers. Integration with wearable devices allows for comprehensive health tracking.

8. Ultrahuman M1 Live Smart Glucose Monitoring

The Ultrahuman M1 Live Smart Glucose Monitoring device offers real-time glucose data synced with a mobile app. It's designed for individuals interested in optimizing their metabolic health through continuous monitoring. The device provides insights into how different foods and activities affect glucose levels, helping users make informed decisions about their diet and lifestyle.

9. Healthify CGM with Smart Plan

The Healthify CGM system provides continuous glucose monitoring along with a smart plan that offers personalized insights and recommendations. It's suitable for users looking to manage their blood sugar levels proactively. The device syncs with a mobile app, allowing users to track their glucose trends and receive tailored advice on diet and exercise.

10. Glucometer Pregnancy Care Essentials

Designed specifically for pregnant women, the Glucometer Pregnancy Care Essentials kit includes a glucometer and accessories tailored for monitoring blood sugar levels during pregnancy. It's an essential tool for expectant mothers managing gestational diabetes. The device offers accurate readings and is easy to use, ensuring both convenience and reliability.

Conclusion

Choosing the right continuous glucose monitor is crucial for effective diabetes management. The devices listed above offer a range of features to suit different needs and preferences. Whether you're looking for affordability, advanced features, or specialized options, there's a glucose monitoring device that fits your requirements. Always consult with a healthcare professional before selecting a CGM to ensure it aligns with your health needs and lifestyle.