14 days 14 days for the FreeStyle Libre 3 and 10 days for the Dexcom G7. However, one major upgrade for Dexcom users will be the new 12-hour grace period. It allows users to avoid data gaps during sensor warm-up periods and erroneous readings that may occur for some people during the beginning of wear using a new sensor.

Unsurpassed 14-day accuracy2 - The FreeStyle Libre 3 system has a mean absolute relative difference (MARD), a measurement of performance for CGMs, of 9.2% for adults.

If needed slowly move the phone. Around you will receive a tone and vibration. After you have successfully started the sensor. This is the only time you'll need to scan your sensor.

How Does Continuous Glucose Monitoring With the FreeStyle Libre System Work? The FreeStyle Libre system measures glucose levels through a small sensor - the size of two stacked quarters - applied to the back of your upper arm. It provides real-time glucose readings for up to 10 days, both day and night.

The FreeStyle Libre 3 Sensor The sensor updates the glucose result up to every minute and sends it straight to your compatible smartphone. It can be worn for up to 14 days and is water-resistant so continues to work while you shower, swim or exercise.

Each sensor lasts up to 14 days. After this time, you'll need to replace it with a new one. You must continue to purchase new sensors, but you have to buy the monitoring system only once.

The FreeStyle Libre system is clinically proven to be accurate, stable and consistent over 14 days with no fingerstick calibrations. The FreeStyle Libre system has a 9.2 % MARD with 99.9% of readings in Zones A and B of the Consensus Error Grid.

Dexcom G7 It is the primary parameter that measures the performance of systems for CGMs. The lower the MARD, the more accurate the CGM is. The Dexcom G7 has the highest level of accuracy for a CGM cleared by the FDA with a MARD score of 8.2 percent.

2 - Sensor Applicators How to use the FreeStyle Libre 3 System. Package Includes: 2 - Sensor Applicators. 2 - Sensor Packs.

The sensor sends real time glucose readings to your smartphone. It updates the reading every minute and stores up to 8 hours of glucose readings in 15 minute intervals. Designed to be water-resistant, it can be worn for up to 14 days, even during activities like swimming, showering, and exercising.

FreeStyle Libre 14 day system frees users from the pain and tedium of fingersticks. The system instead measures and stores glucose readings through a small sensor, about the size of two stacked quarters, that you wear on the back of your upper arm and can scan through your clothing.

Unlike some other sensor-based glucose monitoring systems currently available, the FreeStyle Libre 14 day system is factory calibrated and does not require the patient to do fingerstick† calibrations during the 14-day wear period. Calibration or coding not required by the user.