Continuous glucose monitoring (CGM) systems are important tools for people with diabetes to monitor their blood glucose levels more effectively. Two of the most popular CGM systems are the Freestyle Libre 3 and the G7 Dexcom. While both systems provide real-time glucose data, there are some significant differences between the two. In this article, we will explore the differences between the Freestyle Libre 3 and the G7 Dexcom.
What are the Freestyle Libre 3 and the G7 Dexcom?
The Freestyle Libre 3 and the G7 Dexcom are both CGM systems that measure glucose levels in real-time. The Freestyle Libre 3 is a small sensor that is placed on the back of the upper arm and measures glucose levels through interstitial fluid. The G7 Dexcom is a small sensor that is placed on the abdomen and measures glucose levels through interstitial fluid. Both systems use Bluetooth technology to send glucose readings to a receiver or a smartphone app.
Accuracy
Both the Freestyle Libre 3 and the G7 Dexcom are highly accurate, but there are some differences between the two. According to a clinical study, the Freestyle Libre 3 had a mean absolute difference (MAD) of 8.5 mg/dL compared to laboratory reference measurements. The G7 Dexcom had a MAD of 9.0 mg/dL. This means that the Freestyle Libre 3 is slightly more accurate than the G7 Dexcom.
Sensor Life
The sensor life is an important consideration when choosing a CGM system. The Freestyle Libre 3 sensor lasts for up to 14 days, while the G7 Dexcom sensor lasts for up to 10 days. This means that users of the Freestyle Libre 3 system will need to change their sensor less frequently than those using the G7 Dexcom.
Sensor Size
The size of the sensor is also an important consideration. The Freestyle Libre 3 sensor is smaller than the G7 Dexcom sensor. The Freestyle Libre 3 sensor measures 5mm x 35mm, while the G7 Dexcom sensor measures 10mm x 40mm. This means that the Freestyle Libre 3 sensor is less bulky and more discreet.
Ease of Use
Both the Freestyle Libre 3 and the G7 Dexcom are easy to use, but there are some differences between the two. The Freestyle Libre 3 requires users to scan the sensor with a reader or a smartphone app to get a glucose reading. The G7 Dexcom sends glucose readings to a receiver or a smartphone app automatically, without the need for scanning. This means that the G7 Dexcom may be more convenient for some users.
Cost
The cost of the Freestyle Libre 3 and the G7 Dexcom varies depending on the country and the insurance plan. Freestyle Libre 3 sensor buy online is less expensive than the G7 Dexcom. However, users should check with their insurance provider to determine their out-of-pocket costs.
Conclusion
The Freestyle Libre 3 and the G7 Dexcom are both highly accurate CGM systems that provide real-time glucose data. The Freestyle Libre 3 is slightly more accurate, has a longer sensor life, and a smaller sensor size. The G7 Dexcom is more convenient to use, as it does not require scanning. Ultimately, the choice between the two systems will depend on personal preference and individual needs.
