Connect with others who understand.

  •   Learn from expert-reviewed resources
  •   Real advice from people who’ve been there
  •   People who understand what you’re going through
Sign Up Log In
All Resources Treatments A-Z Personal Assistant Help Center Crisis
Powered By
Real members of myT1Dteam have posted questions and answers that support our community guidelines, and should not be taken as medical advice. Looking for the latest medically reviewed content by doctors and experts? Visit our resource section.

For Dexcom G7 users, what has been your experience and challenges? My experience has been horrible since switching from G6.

A myT1Dteam Member asked a question 💭
December 28, 2025
 · 
Reactions
A myT1Dteam Member

Hi Susan. I’m sorry you’re experiencing all these issues with the sensor. I was recently diagnosed & so I’ve only been using G7 and it seems to work fairly well so far & it lasts the 10 days. I learned that if I insert the new sensor within the grace period it also helps reduce the extreme fluctuations of my numbers when I just start a new sensor & activate it immediately. I’m wondering if the sensors you received may be defective. I hope it improves for you soon. 🙏🏽😊

January 7
A myT1Dteam Member

Any sensor failed prior to 10 day period? I started G7 little over a month and had 1 sensor fail during warm-up, multiple times get invalid code for sensors so applied 3 sensors before one works. Readings often 60+ off from manual stick. Seems like cold weather impacts accuracy. Only 2 sensors worked out of 90 day supply. Dexcom sends replacement but this doesn't help daily frustration, plus finger sticks, and several lows prior to alerts. Have you experienced similar problems?

December 30, 2025
A myT1Dteam Member

Have had good and bad experiences. Hard to get it perfect for sure.

December 30, 2025
A myT1Dteam Member

G7 works great for me.

December 29, 2025
myT1Dteam

What challenges have you experienced since switching from the Dexcom G6 to G7?

Switching continuous glucose monitoring systems can definitely come with an adjustment period, and it's frustrating when things don't work as smoothly as expected. While the search results don't contain specific user experiences comparing the G6 Show Full Answer

What challenges have you experienced since switching from the Dexcom G6 to G7?

Switching continuous glucose monitoring systems can definitely come with an adjustment period, and it's frustrating when things don't work as smoothly as expected. While the search results don't contain specific user experiences comparing the G6 and G7, many people on myT1Dteam share their experiences with different CGM devices.

Common challenges when switching CGM systems can include:
- Accuracy differences during the adjustment period
- Sensor adhesion issues
- Changes in app functionality or interface
- Sensor warm-up times
- Connectivity problems with your phone or receiver

Have you contacted Dexcom's technical support about the specific issues you're facing? They may be able to troubleshoot problems or replace faulty sensors. Your healthcare provider can also help determine if the G7 is the right fit for you or if returning to the G6 might be an option.

What specific problems have you been experiencing with the G7? Understanding the details might help identify solutions or workarounds.

December 28, 2025

Related Questions

View All
Type 1 Diabetes News: Recent Research and Developments
9 Apps for Tracking Your Type 1 Diabetes
Service Dogs for Type 1 Diabetes: What They Do and More