The Freestyle Libre family of continuous glucose monitors (CGMs) by Abbott is designed to help people with diabetes manage their blood sugar levels with ease. Two of the most recent models in this line are the Freestyle Libre 2 and the Freestyle Libre 3. Both sensors offer advanced features and advantages, but they also have some notable differences. This article will outline the key differences between Freestyle Libre 2 and 3 and help you understand which sensor might be the best fit for your needs.
Sensor Size and Design
One of the most apparent differences between the Freestyle Libre 2 and Freestyle Libre 3 is the sensor size. The Freestyle Libre 3 sensor is the smallest and thinnest on the market, measuring approximately 2 x 1.38 inches in size and weighing just 0.035 ounces. This makes it the most discrete sensor option on the market, which is particularly beneficial for individuals who may be concerned about the visibility or potential consequences of wearing a glucose monitor.
Accuracy and Performance
Both Freestyle Libre 2 and Freestyle Libre 3 are known for their high level of accuracy. Abbott claims that the Frestyle Libre 3 sensor is the most accurate 14-day CGM on the market, achieving a Mean Absolute Relative Difference (MARD) of 7.9%. In real world scenarios, however, these numbers may not be as noticeable to users as the difference between a laboratory test result and the sensor reading.
Connectivity and Battery Life
Both Freestyle Libre sensors connect to a corresponding app via Bluetooth. The Freestyle Libre 3 has a range of up to 33 feet, which allows for more flexibility in terms of placement and movement. Additionally, the Freestyle Libre 3 has a built-in battery that can last up to 14 days on a single charge. The Freestyle Libre 2 has a battery life of up to 8 hours, which may require more frequent charging times.
Applications and Compatibility
Both Freestyle Libre sensors are designed to be user-friendly and easy to incorporate into daily life. They are compatible with a variety of smartphone devices and can be paired with the accompanying app. The Freestyle Libre 3 app is only compatible with certain mobile devices, which may be a limitation for some users.
Comfort and Durability
Comfort is an important consideration when choosing a glucose monitor. The Freestyle Libre 3 is designed to be thinner and more discrete than the Freestyle Libre 2, making it a more comfortable option for those who may be self-conscious about wearing a glucose monitor.
Pricing and Insurance Coverage
The cost of the Freestyle Libre sensors varies depending on the length of use and the insurance coverage you have. In general, the Freestyle Libre 3 may be more expensive upfront, but out-of-pocket costs may vary depending on your specific health insurance plan coverage.
Conclusion
When choosing between the Freestyle Libre 2 and Freestyle Libre 3, it's important to consider factors such as accuracy, cost, features, comfort, availability, and compatibility. Both sensors offer valuable insights into your blood sugar control, helping you live a healthier, more manageable life with diabetes. Ultimately, the decision to choose between the two should be based on your individual needs and preferences as a person with diabetes.
