So, the G7 is the high end sensor for actual diabetics that need more frequent measurements (5 minutes) and real time alerts for values out of normal range, and still require a prescription.

Dexcom got US FDA approval this summer for a sensor (the "Stelo") that doesn't have all the bells and whistles, and is aimed at people not insulin that want to track their metrics.

https://www.stelo.com/

They are marketing it for $50 per two week sensor or $45 with a recurring purchase.

There are 2 or 3 other ones like it now without the need for a prescription, but the Dexcom Stelo was the first.  

 Thanks!  I didn't actually see that in my quick search.  That's a decent price. 

 I think it is direct sale only, no distributors. I read somewhere that they are negotiating pharmacy/drugstore distribution.