The FreeStyle Libre from Abbott Diabetes Care is a flash glucose monitoring system that allows users to continuously monitor their glucose levels. Users wear a small sensor on their upper arm and scan it with a handheld receiver or smartphone app to get a glucose reading. Unlike other continuous glucose monitoring (CGM) systems, it does not provide real-time readings automatically but is more affordable and easier to use. The latest model, FreeStyle Libre 2, includes features like glucose alerts and can be used with a smartphone app. The sensor lasts up to 14 days and does not require fingerstick calibrations. It is approved for use by individuals aged 4 and older. The system has a good accuracy rate and has been shown to help manage diabetes effectively. Data can be analyzed via the reader or smartphone app, and users can share their data with others. The device requires a prescription and is available in many U.S. pharmacies. Overall, the FreeStyle Libre is praised for its convenience, ease of use, and affordability, though some users report accuracy issues at the beginning and end of the sensor's life.