I was on the Medtronic 670g with Guardian 3 sensor for 4 years. I was forced to switch to Dexcom and TSlim because I went on Medicare. There are advantages and disadvantages to both systems. I would recommend anyone who has issues with CGM sensors would be to try “pre-soaking” the new sensor and try a new location. I wore both sensors side by side and used fingersticks to calibrate the Medtronic. Both sensors were close to fingerstick results. The most annoying thing about Medtronic is the calibration requirements for 1st day. The most annoying thing about Dexcom is the codes. The most annoying thing about Medtronic pump was it’s big and bulky. The most annoying thing about TSlim is it’s not waterproof and it needs to be recharged.
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