An important technique combined into diabetes management is continuous glucose monitoring, which is real-time monitoring and regulation of blood glucose levels. Among the well-established CGM, ease of use and accuracy in measurement have made the Freestyle Libre series one of the most popular. In this blog post, we’ll take a closer look at what’s new about the difference between Freestyle Libre 3 vs Libre 3 Plus, the last two entries into the latest Freestyle series for you, understand features and benefits, and help you find which one you need.
What is Freestyle Libre?
The Freestyle Libre is a CGM that actually measures glucose in real time. It has a small sensor that will be worn on the upper arm, measuring the glucose levels from the interstitial fluid beneath the skin. Sensors transmit data wirelessly to the smartphone or the reader for continuous glucose information. It has gained popularity because it is less invasive and more convenient than any conventional blood glucose meter alternative.
Freestyle Libre 3 Overview
The third-generation continuous glucose monitoring system, Freestyle Libre 3 Sensor, is Abbott’s newest version of their continuous glucose monitoring system. Introduced in 2021, it is much smaller, more accurate, and more user-friendly than the previous models. Features are as follows:
- Sensor Wear Time: The Libre 3 sensor allows for 14 days of continuous glucose data in two weeks.
- Small Sensor: It’s 60% smaller than the Libre 2, becoming more minimalistic and comfortable.
- Real-Time Glucose Readings: The system releases real-time glucose readings, updating every minute.
- Bluetooth Connectivity: It connects directly to a smartphone without needing a separate reader to view glucose data on the phone.
- Accuracy: Libre 3 has a mean absolute relative difference of about 7.9%, which stands out as one of the best in the industry.
- No Fingersticks Required: Similar to its predecessors, the Libre 3 does not require routine fingerstick testing.
Freestyle Libre 3 Plus Overview
The Freestyle Libre 3 Plus takes over, whereas the Libre 3 stops in functionality but has more advanced capabilities. Here are some of the best features for those who want to enjoy Libre 3’s functionalities and extra features.
- Sensor Wear Time: With a 15-day sensor wear time, Libre 3 Plus is even slightly longer than its predecessor Libre 3; that means another extra day without a sensor change.
- Personalizable Alerts: The Libre 3 Plus boasts features such as customizable high/low glucose alerts, which may be adjusted based on personal preferences and goals regarding glucose management.
- Dual Connectivity: The Libre 3 Plus, aside from having Bluetooth connectivity with a smartphone, can also be connected to a dedicated reader. This means there is greater flexibility for users who prefer to monitor their glucose level using a separate device.
- Extended Data Storage: The Libre 3 Plus stores more glucose data over an extended period, which can help track trends and patterns over several weeks.
- Advanced Data Analytics: The Libre 3 Plus includes advanced trend analysis and reporting tools, allowing users to track their glucose levels in more detail.
More about Freestyle Libre 3 vs Libre 3 Plus
Data Transmission and Connectivity
Both Libre 3 and Libre 3 Plus deliver actual glucose values each minute. These sensors automatically synchronize the data with the Libre 3 reader or a compatible smartphone application without scanning them. It’s much easier for the users to keep themselves on track for their glucose levels at all times. It would be great for anyone needing alerts immediately, as it would be easy to track with minimal interruptions.
Age Range for Use
Libre 3: It is approved for use in patients aged 4 years and above. It is flexible but may not be suitable for younger patients.
Libre 3 Plus: It has expanded age approval and can be used by children as young as two years, making it a more inclusive option for families managing diabetes in young children.
Integration with Automated Insulin Delivery Systems
A notable feature of the Libre 3 Plus is its compatibility with automated insulin delivery (AID) systems, including Abbott’s soon-to-be-released integration with the Beta Bionics iLet Bionic Pancreas. This means that Libre 3 Plus users will soon be able to link their CGM data directly to specific insulin pumps, automatically allowing the device to adjust insulin delivery based on real-time glucose data. This feature can offer more precise glucose control and may reduce the burden of manual dosing adjustments for those managing insulin-dependent diabetes.
Accuracy and Performance
Both sensors are highly accurate, with minimal lag in real-time readings. They give users a clear picture of their glucose levels. Still, with the added integration in the Libre 3 Plus, users on AID systems can expect even more stable readings that contribute to better overall management of glucose levels.
Freestyle libre 3 vs. libre 3 plus cost
The Freestyle Libre 3 and Libre 3 Plus can vary depending on whether you have insurance.
With Insurance:
If you have insurance, both the Freestyle Libre 3 and Libre 3 Plus may be covered under your plan, which could reduce out-of-pocket expenses. Generally, you will be required to pay a copay or deductible. This varies depending on your insurance company and coverage. Libre 3 ranges between $30 to $50 per sensor. Though Libre 3 Plus is covered, it may charge a little more due to additional features.
Without Insurance
Without insurance, the Freestyle Libre 3 typically costs between $90 and $100 for a 14-day sensor. The Libre 3 Plus typically costs between $100 to $110 for a 15-day sensor. You would also need to add a reader’s cost if you decide to use one, which could be an additional $70 to $100.
The price may vary depending on location, pharmacy, and promotions, so it is best to look for discounts or programs that could assist in getting prescriptions.
Key Differences Between Freestyle Libre 3 vs Libre 3 Plus
| Feature | Freestyle Libre 3 | Freestyle Libre 3 Plus |
|---|---|---|
| Sensor Wear Time | 14 days | 15 days |
| Bluetooth Connectivity | Smartphone + Reader | Yes, to both smartphone and reader |
| Data Analytics | Basic glucose tracking | Advanced trend analysis and reports |
| Alerts & Notifications | Standard alerts | Customizable high/low alerts |
| Accuracy | 7.9% MARD | 8.2% MARD |
| Extended Data Storage | Basic storage | Larger storage for more historical data |
| Integration with AID Systems | No | Yes, with Beta Bionics iLet Bionic Pancreas |
| Age Range for Usage | 4 years and above | 2 years and above |
| Cost | Typically, less expensive | Slightly more expensive due to additional features |
Which One to Pick?
This depends on individual needs and personal preferences between Freestyle Libre 3 plus vs 3. Here are a few points that may be taken into consideration.
For Simplicity and Ease of Use: For a simple, reliable CGM system with a small sensor and easy-to-use features, Freestyle Libre 3 is an excellent choice. It is great for those seeking the convenience of real-time glucose data without additional features such as advanced alerts or detailed analytics.
More Advanced Features and Flexibility
Suppose your patient needs the additional glucose trend analysis, customized alert, increased wear time, and ability to be compatible with automated insulin delivery. In that case, the Freestyle Libre 3 Plus Sensor can be recommended over the above models. The more freedom management users want with more options. It is more suitable for use with a dedicated reader or both with smartphone applications.
Conclusion
The Freestyle Libre 3 vs Freestyle Libre 3 Plus uses advanced technology for continuous glucose monitoring. However, both of them are different and designed for varying purposes. For example, the Freestyle Libre 3 is suitable for a user who needs a product that is easy to use and reliable. In contrast, the Freestyle Libre 3 Plus caters to users requiring more complex capabilities, such as customizable alerts, extended wear time, detailed analytics, and integration with automated insulin delivery systems.
Comparing the freestyle libre 3 plus vs 3 based on how they support your lifestyle, glucose monitoring preferences, and other features that may complement your diabetes management. Discuss this with your healthcare provider.
Both freestyle libre 3 plus vs 3 offer users a more comfortable and convenient way to monitor glucose levels, helping improve diabetes management and overall health.
