Comparison of Dexcom and Freestyle Libre Continuous Glucose Monitors (CGM)

When it comes to continuous glucose monitoring (CGM), two popular devices stand out: Dexcom and Freestyle Libre. Both offer valuable insights into blood glucose levels, aiding individuals with diabetes in managing their condition effectively. In this article, we will delve into the pros and cons of each, helping you make an informed decision based on your needs and requirements.

Dexcom CGM

Experience and Reliability: I have been using Dexcom for over five years, and my current version, G6, has proven to be a reliable tool for managing my blood sugar levels with an insulin pump. The device has saved me from numerous complications that could have arisen without proper monitoring.

Alarm Function: One of the most significant advantages of the Dexcom CGM is its ability to set alarms. As a user wearing an insulin pump, I can configure my receiving device to alert me of critical blood sugar levels, either too low (hypoglycemia) or too high (hyperglycemia), during the night. This feature is invaluable, offering a sense of security and peace of mind.

Bluetooth Technology: Dexcom uses Bluetooth technology, which, despite not being the most stable in general, provides a longer range for data transmission. This can be beneficial, especially for users who need to monitor their blood sugar levels from a distance.

Insertion and Management: Although the insertion process can be more complicated with Dexcom, it is an issue that can be managed easily. The complexity arises from the need for a small hole in the skin where the sensor is inserted, which can be addressed with some preparation and guidance.

Freestyle Libre

User Flexibility: My father, who uses Freestyle Libre, has found it to be more versatile. The device can be easily placed on various parts of the body, making it a convenient choice for those who need more flexibility in monitoring locations.

NFC for Data Transfer: Freestyle Libre features near-field communication (NFC) technology, allowing for easy data transfer when placing the receiver close to the sensor. This can be more user-friendly for some individuals.

No Continuous Bluetooth: Unlike Dexcom, Freestyle Libre does not have continuous Bluetooth connectivity. Data must be transferred manually, which can be a drawback for users who require more immediate and constant monitoring.

Advice from Medical Professionals

Consultation: I recommend consulting with your doctor or an endocrinologist to discuss the best monitoring system for your specific needs. My endocrinologist regularly reviews my blood sugar monitoring to ensure optimal management of my diabetes. For individuals using Freestyle Libre, the need for such regular review may be less frequent.

Conclusion

While both Dexcom and Freestyle Libre CGMs offer valuable features, the choice ultimately depends on your personal preference and specific requirements. Dexcom's unique alarms and longer-range Bluetooth technology stand out as significant advantages, especially for users with insulin pumps. However, Freestyle Libre's versatility and ease of use on different body parts can be advantageous for some individuals.

Remember, discussing your options with a medical professional is crucial to ensure that you select the best device for your diabetes management.