Freestyle Libre 3 and Samsung Galaxy Watch Ultra

Continuous Glucose Monitoring (CGM) is merely an ease for people living with diabetes. Unlike traditional fingerstick tests, CGM systems provide real-time glucose readings 24/7 without needing you to prick fingers. This continuous monitoring keeps diabetics more informed and helps them make more informed decisions about food, exercise, and insulin use. Plus, most of the CGMs today offer pre-set and custom glucose alert options, thus preventing extreme highs and lows in blood sugar.

What is the Freestyle Libre 3 Sensor?

The Freestyle Libre 3 has a crown for being the world’s first smallest CGM monitors with the best MARD (mean absolute relative difference) value of 7.8%. Sleeker, more compact, and has more advanced features than its predecessors.

What is MARD value?

MARD value is the mean absolute relative difference. According to NIH, “MARD parameter is used most often to characterize the measurement performance of systems for continuous glucose.”

Freestyle Libre 3 and Samsung Galaxy Watch Ultra

The Freestyle Libre 3 sensor works with Samsung Galaxy Watch Ultra, creating a powerful combination for managing diabetes. Both the Freestyle Libre 3 and the Galaxy Watch Ultra offer advanced features that make tracking glucose levels more convenient and efficient for users.

How to Calibrate Both Devices

While the Freestyle Libre 3 sensor does not require fingerstick calibration under normal circumstances, you can still calibrate it with your Samsung Galaxy Watch Ultra for enhanced accuracy. If you have your Freestyle Libre 3 linked to your Samsung watch, the watch will display glucose readings directly on its screen, enabling easy tracking without reaching for your phone.

Here are the steps for setting up and calibrating both devices:

1. Install the FreeStyle Libre 3 App on your Samsung phone.
2. Link the sensor: Follow the instructions to connect the Freestyle Libre 3 sensor to your smartphone using the FreeStyle LibreLink app.
3. Sync with Samsung Galaxy Watch Ultra: To see the data directly on your watch, sync the FreeStyle LibreLink app with compatible apps on your Galaxy Watch Ultra.
4. Monitor and Adjust: Check your glucose readings through the Samsung Galaxy Watch Ultra’s display. No additional calibration is required for most users, but you can monitor and manually adjust if needed based on your doctor’s recommendations.

By pairing these two devices, users can effortlessly track their glucose levels while keeping an eye on other health metrics, such as heart rate and activity level, from their Samsung Galaxy Watch Ultra.

Key Features of the Freestyle Libre 3 Sensor

Size of the Libre 3 Sensor

The Freestyle Libre 3 sensor is incredibly small and discreet, measuring about the size of a U.S. quarter (approximately 35mm in diameter). This compact design makes it comfortable to wear all day without drawing attention, allowing users to go about their activities with ease.

Who Can Use It?

The Freestyle Libre 3 is suitable for people aged 4 years and older. It is commonly used by individuals with type 1 and type 2 diabetes who want to track their glucose levels continuously. The system is especially beneficial for those looking for an alternative to traditional fingerstick testing, offering better insights into glucose trends and fluctuations.

Age Limitations

Minimum age: The sensor is approved for use in children aged 4 years and older.

No specific maximum age: There is no defined upper age limit, so the sensor can be used by adults of all ages who require glucose monitoring.

How Long Does the Freestyle Libre 3 Sensor Last?

The Freestyle Libre 3 sensor is designed to last for 14 days. After 14 days, users will need to replace the sensor with a new one. This two-week wear time eliminates the hassle of frequent sensor replacements, providing an easy and long-lasting monitoring solution.

Is the Freestyle Libre 3 Sensor Water-Resistant?

Yes, the Freestyle Libre 3 sensor is water-resistant. It can be submerged in water up to a depth of 1 meter (3.3 feet) for up to 30 minutes. This makes it suitable for wearing during activities such as swimming or showering without the need to remove the sensor.

Conclusion:

While there is no app specifically for smartwatches, some latest smartwatches can mirror the mobile phone notifications, perhaps receiving alarms and other app notifications from the FreeStyle Libre 3 app. Please check out the list of compatible smartphones before buying your Freestyle Libre 3 sensor.