Choosing between the FreeStyle Libre 2 or 3?
Continuous Glucose Monitoring (CGM) systems have become the go-to blood sugar solution for countless people living with diabetes. These devices require a physician’s prescription and have been proven to improve blood sugar control and diabetes management.
In fact, a study published in a 2023 issue of Clinical Diabetes by the American Diabetes Association (ADA) showed a significant reduction in A1C scores among those who relied on continuous glucose monitoring.
Understanding Continuous Glucose Monitoring (CGM)
CGM devices allow users to gain real-time intel on their blood sugar level and check it as often as every minute—without the need for finger pricks or test strips! These devices use a sensor attached to the arm or abdomen, which transmits blood sugar data to a smartphone application for instant updates.
Meet Abbott's FreeStyle Libre: A Leader in CGM Technology
Abbott is among the most respected and popular players in the CGM universe, making the breakthrough FreeStyle Libre 2 and the newer FreeStyle Libre 3 CGM systems.
Both Freestyle 2 and FreeStyle 3 CGMs have been shown to improve blood sugar control through real-time updates. There are, however, some core differences between the two systems. In this post, we’ll shine a light on some of these differences so that you can be more informed when discussing CGM options with your diabetes care team.
Libre 2 vs. Libre 3: A Head-to-Head Comparison
For starters, it’s important to point out that just because the FreeStyle Libre 2 was introduced before the Libre 3, it is no less impactful in controlling blood sugar. Both systems will do the trick; it’s really a matter of personal preference, management needs, costs, and doctor recommendations.
Sensor Showdown: Size and Functionality of Libre 2 vs. Libre 3
The Libre 2 and Libre 3 have discreet sensors on the upper arm. The FreeStyle Libre 2 sensor is about the size of two stacked quarters. However, the FreeStyle Libre 3 sensor is even smaller and more discreet. In fact, it’s the smallest CGM sensor on the market, only about the size of two stacked pennies.
Both sensors can be used without replacement for about two weeks. Both Libre 2 sensors and Libre 3 sensors last up to 14 days, while the new Libre 2 Plus and Libre 3 Plus sensors can be used for up to 15 days without replacement.
Real-Time Readings: How Each System Delivers the Data
Perhaps the most significant difference between the two systems is how you get your blood sugar reading. While both provide real-time blood sugar updates as often as every minute, with the Libre 3, this data is automatically sent from the sensor to the smartphone app. You simply glance at the app on your phone to see your up-to-the-minute reading.
The FreeStyle Libre 2 works a little differently. You must hold your smartphone above the sensor to check your blood sugar. The system records the reading and displays it on the app. The Libre 2 does not automatically send readings to your smartphone.
Key Features of FreeStyle Libre 2 and 3: What You Should Know
In most ways that count, the features and benefits of the FreeStyle Libre 2 and 3 mirror each other. For instance, both include:
- Easy-to-read displays that show current blood glucose readings in significant, bold type and trend arrows showing if glucose is trending up or down.
- Optional alarms for high and low blood sugar levels
- Painless to apply sensors
- Proven blood sugar accuracy
- Both can be worn while swimming, showering, or exercising
- The Libre 2 and Libre 3 devices and sensors are more affordable than many CGM systems.
Pump Compatibility: Libre 2 Takes the Lead (For Now)
The Libre 2 is currently authorized in the United States to integrate with the Tandem T: Slim X2 insulin pump for even greater blood sugar control and better overall diabetes management. The Libre 3 has not yet been approved in the United States for use with an insulin pump. For many who struggle to manage diabetes effectively, this is a tremendous advantage.
Libre 3 Wins: Size, Range, and User-Friendliness
- Transmitter range of 33 feet vs 22 feet for the Libre 2
- Easy to apply one-piece sensor applicator
- Approved for users as young as two years
- The most petite and most discreet sensor on the market today
Next Steps: Choosing Between FreeStyle Libre 2 and 3
You’re not going to find the correct answer in this post. Choosing a CGM system, whether from the FreeStyle family or any other brand, is something you need to sit down and discuss with your endocrinologist or physician. The correct answer is the CGM that best fits your treatment, medication, and lifestyle needs. With that in mind, we hope this post provides more insight into the FreeStyle Libre 2 and FreeStyle Libre 3 devices.
FAQs: Common Questions About The FreeStyle Libre
What is Continuous Glucose Monitoring (CGM)?
Continuous Glucose Monitoring (CGM) tracks blood sugar levels in real-time using a small sensor placed under the skin. This technology provides frequent updates, allowing users to manage their diabetes more effectively without needing regular finger pricks.
What are the main differences between FreeStyle Libre 2 and FreeStyle Libre 3?
The primary differences include sensor size, data transmission methods, and integration options. The Libre 3 has a smaller, more discreet sensor and automatically transmits blood sugar data to your smartphone, while the Libre 2 requires you to scan the sensor with your phone to obtain readings.
How do I obtain a blood sugar reading with FreeStyle Libre 2 and 3?
For the FreeStyle Libre 3, blood sugar readings are automatically sent to your smartphone app every minute. With the FreeStyle Libre 2, you must hold your smartphone over the sensor to retrieve the reading.
How long do the sensors for FreeStyle Libre 2 and 3 last?
Both the FreeStyle Libre 2 and Libre 3 sensors can be worn for up to 14 days without replacement, while the newer Libre 2 Plus and Libre 3 Plus sensors can last up to 15 days.
Can I swim or shower with the FreeStyle Libre sensors?
Yes, both the FreeStyle Libre 2 and Libre 3 sensors are water-resistant, allowing users to swim, shower, or exercise without removing them.
What advantages does FreeStyle Libre 2 have over Libre 3?
The FreeStyle Libre 2 can integrate with the Tandem T: Slim X2 insulin pump, offering enhanced blood sugar control for users on insulin therapy. This integration is not yet available for the Libre 3 in the U.S.
Does insurance cover the FreeStyle Libre systems?
Coverage for FreeStyle Libre systems may vary depending on your insurance plan. It’s recommended to check with your insurance provider to understand your coverage options.
Are you a user or physician with insight into the Libre 2, Libre 3, or any of the FreeStyle family of products? Feel free to share them with our community in the comment section below. Thanks.
At Diabetic Warehouse, we’re committed to helping those with diabetes manage their blood sugar by offering a complete selection of testing and treatment supplies at prices up to 65% less than those found at most pharmacies and suppliers.
