I feel like I've heard bad things about the G7 but I don't actually have anything to back that up. I'm using the G6 currently and have been able to restart it after ten days using the trick where you pop the transmitter out for a little bit. As far as I know you can't do that with the G7, right?
this post was submitted on 23 Dec 2025
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Type One Diabetes
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As far as what I have read on other diabetes forums, people are not liking the G7 at all. They have problems with both accuracy and longevity of the sensors. There is a new 15 day G7 sensor that is just about available in the US and that sensor has an abysmal fail rate reported from Dexcom themselves.
I have been using the 10 day G7 for about a year. I'm just one person so my experience is purely anecdotal. I haven't experienced the problems other have experienced to the degree they are seeing them. In that year I have only had two sensors fail and they were both quickly replaced by Dexcom with no hassle. I have had accuracy problems, mostly in the first 12 hours of changing to a new sensor. Those instances have been frustrating and much more frequent than sensor failures for me. Usually the difference in glucose between a finger stick and the CGM is in between 20% and 25% when they are being inaccurate. It's a big deal but not the end of the world. I can usually get it sorted out with a calibration. I have seen others post their CGM graphs and theirs are wildly wrong so I may just be getting lucky and your mileage may vary.
And to answer your question, you cannot restart the G7 like you can the G6. That would have been really nice. Anyways if you end up on the G7 in 2026 I hope it works out well for you. Or at least as well as it has worked out for me.