Libre2 vs Dexcom + rant
I’ve been using Libre 2 sensors for quite a while now, and to be honest, I’m getting frustrated with how inaccurate they can be. Lately, I’ve noticed that whenever I place the sensor on my right arm, the readings seem to be significantly off around 70% of the time. Because of this, I’ve been relying more on finger-prick testing to verify my glucose levels.
Has anyone else experienced similar issues with the Libre 2?
I’m also curious about Dexcom. What’s everyone’s experience with it? Is it generally more accurate, or does it have similar reliability issues?
My concern is that these sensors cost around C$100 each. While they are covered by my private insurance, I still don’t like the idea of spending money on something that isn’t providing reliable readings.
I’d appreciate hearing about your real-world experiences with both Libre 2 and Dexcom. How accurate have they been for you?
Posted Jun 2, 2026, 1:13 PM UTC