Top Features of the Best CGM Devices You Should Consider
                     Top Features of the Best CGM Devices 
You Should Consider
Managing blood sugar levels is crucial for individuals with diabetes, and Continuous Glucose 
Monitoring (CGM) devices have revolutionized this process. These devices provide real-time 
insights into glucose levels, enabling proactive management and reducing the risk of 
complications. With numerous CGM options on the market, choosing the right one can be 
challenging. In this article, we present expert reviews of the best CGM devices for blood sugar 
control, helping you make an informed decision. best cgm devices
What to Look for in a CGM Device
Before diving into the expert reviews, it's important to understand the key features to consider 
when selecting a CGM device:
1. Accuracy: The most critical aspect of any CGM device is its ability to provide accurate 
readings. Devices with a low Mean Absolute Relative Difference (MARD) are generally 
more reliable.
2. Ease of Use: A CGM should integrate smoothly into your daily routine. Consider the 
device's setup, how easy it is to wear, and how often the sensor needs to be replaced.
3. Data Accessibility: The ability to access real-time glucose data and receive alerts for 
high or low levels is essential for effective blood sugar management.
4. Compatibility: Ensure the CGM is compatible with your smartphone, smartwatch, or 
other health devices for seamless integration and data tracking.
5. Sensor Life: Longer sensor life means fewer replacements, making the device more 
convenient and cost-effective.
6. Cost and Insurance Coverage: Consider the overall cost of the device, including 
sensors, and check your insurance coverage.
Top CGM Devices for Blood Sugar Control
7. Dexcom G7
Expert Verdict: The Dexcom G7 is widely regarded as one of the most accurate CGM devices 
available. It offers real-time glucose monitoring with a low MARD, ensuring precise readings. 
The device features a small, comfortable sensor that lasts up to 10 days. Its user-friendly app 
provides customizable alerts and integrates with popular health apps, making it a top choice for 
those seeking reliable and accessible blood sugar control.
Pros:
 Highly accurate readings
 User-friendly interface
 Seamless integration with health apps
 Customizable alerts
Cons:
 Higher cost compared to some other options
 Requires a prescription in some regions
2. Freestyle Libre 3
Expert Verdict: The Freestyle Libre 3 stands out for its affordability and long sensor life. This 
CGM device offers continuous glucose monitoring with a sensor that lasts up to 14 days. It's 
known for its ease of use, featuring a simple scan to get your glucose reading. The Freestyle 
Libre 3 is an excellent option for those who want reliable glucose monitoring without breaking 
the bank.
Pros:
 Affordable
 Long sensor life (up to 14 days)
 Easy to use with a simple scan
Cons:
 Lacks some advanced features found in higher-end models
 Limited integration with other health devices
3. Medtronic Guardian Connect
Expert Verdict: Ideal for users of Medtronic insulin pumps, the Guardian Connect offers 
advanced features and predictive alerts. This CGM device is known for its high accuracy and the 
ability to predict glucose trends, giving users a heads-up before their blood sugar levels drop or 
spike. While it requires calibration with a blood glucose meter, its predictive capabilities make it 
a standout option for proactive diabetes management.
Pros:
 High accuracy with predictive alerts
 Integrates well with Medtronic insulin pumps
 Provides trend insights for proactive management
Cons:
 Requires calibration with a blood glucose meter
 More complex setup compared to other CGMs
4. Eversense CGM
Expert Verdict: The Eversense CGM is unique in that it offers an implantable sensor that lasts 
up to 90 days, significantly longer than other CGM devices. This long-term solution is ideal for 
those looking to reduce the hassle of frequent sensor changes. It also features a transmitter that 
vibrates when glucose levels are out of range, providing an added layer of safety.
Pros:
 Long sensor life (up to 90 days)
 Vibrating alerts for out-of-range glucose levels
 Reduces the need for frequent sensor changes
Cons:
 Invasive implantation process
 Higher upfront cost
5. Abbott Freestyle Libre 2
Expert Verdict: The Freestyle Libre 2 builds on the success of its predecessor, offering 
additional features like customizable alarms for high and low glucose levels. It remains a budget- 
friendly option while providing reliable glucose monitoring. The device’s accuracy and 
simplicity make it a popular choice for those new to CGMs or looking for an upgrade.
Pros:
 Customizable alarms for high and low glucose levels
 Budget-friendly
 Easy to use
Cons:
 Limited integration with third-party health apps
 Shorter sensor life compared to other models
Conclusion: Making the Right Choice
Choosing the best CGM device for blood sugar control depends on your specific needs, lifestyle, 
and budget. The Dexcom G7 is ideal for those seeking top-tier accuracy and integration, while 
the Freestyle Libre 3 offers a budget-friendly option with reliable performance. For users of 
Medtronic insulin pumps, the Guardian Connect provides advanced features for proactive 
management, and the Eversense CGM offers a long-term solution with its 90-day sensor.