I have been on Libre Freestyle 2 ( and now 2+) for several years and had no indication about how inaccurate they are until I started questioning why my HbA1c from Libre was 20 points lower than my actual blood tests over the last couple of years. Going back to finger-pricking testing and comparing with Libre shows Libre to be up to 50% inaccurate showing lower glucose readings than is true. This is a serious concern since it must be causing long term detriment to my health.
Shocking indifference from Abbott!