What's The Difference Between Libre 2 Plus and Libre 3 Plus Sensor

Functionality: Gathers biodata in real-time and holds 8 hours of data. Tap to transfer biodata from the sensor to the app
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Size: Roughly the size of a quarter
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Duration: 15 days

Functionality: Gathers biodata in real-time and holds 8 hours of data. Automatically transfers biodata via bluetooth to App.
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Size: Roughly the size of two pennies stacked
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Duration: 15 days