CGM

TheAncientOne said:

How many people here ware a CGM and are they accurate I have the G6 and sometimes it is about 40 points off

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Ditto for me with the Freestyle Libre. For many, I hear it is pretty good but can vary sensor to sensor and hydration levels. I miss a calibration correction function and 3rd party apps can't seem to deal with my personal temperature changes at night
It does provide good trend info.

TheAncientOne said:

I use the Dexcom G6 they told me to take it off that it was in ERROR

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Mm. I heard you can calibrate them.
Abbott replaced my very first sensor because it suddenly and permanently got a 5mmol/L jump. I knocked the second off after 2 daus -was always 2 out. The replacement was tracking well for a day and now it is bumping along at 3.5 and has been all day 1.5-2.5 low. I wouldn't want to use one if I needed accurate measurement but results vary person to person. I may be unlucky.

If you do a search, there are some long and detailed discussions on the Libre in the forum here.