Dexcom vs Freestyle

I was just informed that my insurance covers CGMs and have a 0 copay for either of the Dexcom or Freestyle, if I want to use one of them...

What are the pros and cons of each?

I know Dexcom is 10 day while Freestyle is 14... but that is all I know..

I am also Type2, last A1C was 6.7, but am taking 171 units of insulin daily

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Thanks!