Looks like I’ll need to work on a new script for the G7 sometime early next year. It may have already been discussed here but it didn’t register with me for whatever reason. Has the Dexcom G7 improved?
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@ClaudnDaye - I’ve been delaying an upgrade to the G7 since the G6’s been working well. I’ve read so many bad reports (the satisfied users are quiet) re the G7, it scared me off. Your son uses the DIY Loop as well?
The G7 15-day version just was announced in the last week or so. It’d be great if that new sensor actually delivered 15 days consistently. For now I’ll just hope for the best!
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Yes, the G7 works fine with The Omniloop system so I know the transition should be pretty seamless but I’m just worried, as you are, about the G7’s performance. I do like the 15 day life but I already get 15 day life out of our G6…sometimes more.
Can the G7 be reset/re-used like the G6?
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I understand that the G7 cannot be reset.
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I think it has improved over the past 6 months or so but that is just a gut feel based on my experiences. My G7 sensors had a bad run earlier in 2025 with a variety of the often reported problems. But lately…much improved.
I am still on 10 day sensors and don’t plan to try the 15 day version until I have to.
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I haven’t seen a hack to do it. If it were possible the short battery life of the transmitter might give a few days before dying.
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@terry I recommend you ask your doc if he has samples available for testing. I raised a question with my Endo: “What’s your experience with the G7? Are your other patients using it at all?” He said some had switched, experience is variable and offered a couple of samples for me to try and see how it worked. I took the two boxes offered, tried them, and haven’t looked back. It has its problems: the first few hours, up to 12 or so, are usually (not always) a “settle in period” of jumpyness and questionability as to accuracy; the last day (day 10 of 10.5 with grace period) is similar. I’ve had some “wait up to 3 hour” warnings that usually resolve within 20-30 minutes (seems to have waned over time). The graph is not as “smooth” as the G6; the G7 is known for this and I don’t have “smoothing” turned on (it’s settable in the app on G7), but it isn’t drastic (some peoples is considerable). The G7 advantages, if it works for you otherwise, are the 30 min warm up and 12-hour grace period, smaller size, and all in one (sensor and charger) build. It’s not perfect by any stretch, but I’ve found it to be equal if not better than G6. YDMV, but its worth trying with little downside risk if you can find samples. If your doc doesn’t have them, you can always ask Dexcom.
Editted: The G7 seems to use a different adhesive (some may have reactions, I do not). While it comes with a wider adhsive patch to place around the device, I’ve found I don’t need it. In fact, I usually have trouble removing the device with it’s integral small adhesive strip. I should probably be thankful, but sometimes find myself swearing at the little thing because I end up scraping it off vice peeling it off!
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@ClaudnDaye Thanks for posting this, I hadn’t seen and was unaware. Little impact as I’ve already made the switch after a trial version of 21 days, but good to know. Considering how many people use them, it makes you wonder what the stockpile is like at distributors and the company!
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@ClaudnDaye I reported elsewhere that I spoke with my Endo recently about G7 15-Day. His advice was to wait and see how the new algorithm works for folks. My understanding is the algorithm (on the PDM and app) is the only difference in the two products (other than packaging), and its also responsible for the one noticeable difference in performance parameters Dexcom discloses, i.e. one-hour warm-up instead of 30-minutes for the G7 (this may be a Dexcom recognition of the sometimes shaky startup of G7s). The not so clear Dexcom statistic warning is the G7 15-Day device only works 15-days for about 3/4’s or so of users, others vary between 0-15 days (includes failures, I used to have the Dexcom citation, but you can find it in a search). For those not making it to 10-days with the standard G7, it’s doubtful performance will be any better with the G7 15-Day version. I understand Dexcom will charge about the same price (widely impacted by insurance), whether 2 G7 15-day’s or 3 standard G7’s are purchased. This means Dexcom’s income should rise about 30% per converted user for the same manufacture cost; and converted user cost should remain static, despite less product. On the good side, the waste stream should reduce 30% for every converted user as well! In addition, users using the grace period to build up a backlog supply of the products will take longer to do so. I’m sure I’ve missed some impacts and may be mistaken in my understandings; so we’ll see what happens with time and actual product use.
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How can they discontinue before they release G8? Everyone hates G7.
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My doctor’s clinic has a policy of accepting no drugs or devices from manufacturers so it has none to offer patients. Your advice to just give the G7 a try makes sense. I have many expired G7s that I accumulated in expectation of making the switch a few years ago. I never made that switch but I could easily try them if expired G7s still work.
As a long-time user of Dexcom CGMs and for years I was able to restart sensors, I’ve developed a good supply of “buffer” sensors. The “just in time” logistics of diabetes supply carries needless stress.
I appreciate reading your G7 review. That makes me more confident to make the jump and give them a try. Can I run both the G6 and G7 sensor while only using the G6 output to inform my current AID system, DIY Loop?
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Not true @mohe0001. There are many people that like it better than the G6 and other CGMs. While I don’t “love” the G7, my experience has been they have similar but less issues than the G6’s I had for years. I’d still like a longer lasting, more accurate product, i.e. a cure…just like you.
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Actually, FWIW I think the G7 has actually improved quality -wise in the last 6-8 months. All the failed sensors, lousy glue adhesion, wildly inaccurate sensors, and sensors that failed to even start up all seem to have disappeared (for me at least). The worst I have seen lately is a sensor that’s off by 10 points to the negative (it’s reading 10 points lower than it should). I think I can live with that.
Just my 2 ¢.
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That’s awesome to hear!
It would be great to get more of these positive reviews. Mostly all i can find is negativity around them.
On my last few G7s I’ve noticed a stronger signal. I’ve been able to wear my Omnipod 5 farther away and still keep a consistent connection. This was not the case a few months ago. I even wore them on opposite arms last week and did well in auto mode overnight. I was suprised.
I think the biggest thing to get use to on G7 is that the numbers will look jumpy. Thats the best way I can describe it. I think it’s less data smoothing??? Not sure. I try not to overreact until I notice a clear trend for let’s say 30 or 40 minutes.
Any time my skin is even a little cold sensors read like just like a compression low. So swimming, showers, even just a cold breeze hitting my arm outside could make the G6 read lower for 30 minutes. After swimming in the pool it would read lower for at least a hour. The G7 will read lower while I’m cold but always recover within 15 minutes after warming up. This has been my favorite thing so far. I’m extremely happy about it.
Not me, I find the G7 a big improvement. Yes, there was that lot of out of box failures, but the G6 got wonky often on day 7.
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