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What is Needed to Start


Sensor uses a thin, flexible filament inserted just under the skin to measure glucose levels every minute. Push-button applicator allows sensor to be placed on the body in one step.


Conveniently access glucose readings using a reader, smartphone, or both. Available for both iOS and Android devices.

Watch and Learn

Intro to FreeStyle Libre 3

FreeStyle Libre 3 Accuracy

Using FreeStyle Libre 3

Device Details

Affordability and Access

Widely covered. Provided by pharmacies. Price range; $0-$100/month. Often the cheapest and easier to access sensor. 

Data Monitoring Options

Sensor automatically sends data to the user’s LibreView account which enables sharing with HCPs and caregivers via the LibreLinkUp app. Data upload is possible with Glooko and Tidepool data-management systems.

Data View Options

Freestyle Libre 3 app provides glucose readings and alarms, multiple data views, the ability to share glucose data and real-time alarms with LibreLinkUp, and the ability to connect to a clinician's practice through LibreView. 

Duration and Storage

14 Days
Sensors last 14 days and work between 50ºF - 113ºF. They are shipped in orders of 1-3 months at a time - which is 2-6 boxes at a time.

Vision / Auditory / Dexterity

NO text to speech
YES vibration alerts
A LOT of dexterity needed

Patient Considerations


Lowest profile sensor and smallest adhesive (about the size of two stacked U.S pennies). 

Active Lifestyle

Water-resistant for up to 3 feet deep for 30 minutes and light on the body, does not get in the way of activity. 

Avoiding Highs and Lows

Optional glucose alerts for low and high glucose levels. Trend arrows show the direction glucose is heading, with the rate of change. 

Easy to Use

No scanning required. Minute-by-minute readings are sent directly to the mobile app. 

Easy Insulin Dosing

Sensor trends can be used for dose adjustment.

Fewer Fingersticks

Factory-calibrated sensor. Finger-sticks needed for backup only. 


Hypoglycemia safety alarm. Discreet size but built-in hypoglycemia safety alarm alerts users when glucose is below 55 mg/dl and is always on.