One Monday per month, I’ll take a trip down memory lane and reflect on how much diabetes technology, education, and stigma has changed over the years. Remember when…
…Dexcom CGMs made their debut?
It was just over ten years ago that the Dexcom SEVEN CGM System launched. I didn’t actually know more about it, though, until a couple years after the fact. That was when my endocrinologist encouraged me to sign up for a week-long trial run with this new technology to see how I liked it.

I didn’t like it, I LOVED it. I quickly became obsessed with the ability to monitor my blood sugar levels at all times. But it’s funny to think back to how bulky and just plain different that first-generation system was compared to today’s sleek and highly functional models.
A few key differences between now and then:
- Size. The first CGM was large. It was roughly the size of my OmniPod PDM, which might not seem so significant, but it is when measured up against newer CGM models.
- Display. The screen on my first CGM was very simple. No colors, no frills – just readings of my blood sugar. That was all fine, but I have to say that I’m a fan of color-coordinated blood sugar reports (red for low, yellow for high, gray for in-range numbers). In a weird way, it motivates me to keep my graph as gray as possible.
- Distance restrictions. I hated that I had to keep my first CGM so close to me at all times, or else run the risk of losing data! It was hyper sensitive and my readings would be lost if I left the same room as the CGM for more than a couple of minutes. My CGM is now able to pick up readings from much farther away – sometimes, even when I’m downstairs and it’s upstairs.
- Sounds. My memory is a little foggier on how the sounds compare between old and new Dexcom CGM generations, but I do recall the beeps and vibrations being far more aggressive and annoying on older models.
- Smartphone access. This might be one of the biggest and best changes – the ability to download an app on your smartphone that can replace a Dexcom receiver. How awesome is that? Plus, if you choose to do so, you can invite family and friends to monitor your blood sugar along with you, which can be helpful in certain situations. Cell phones are so ingrained into society, so this move was brilliant on Dexcom’s part.

All these improvements have made me a member of Team Dexcom for life. It’ll be neat to see what they come up with next to help make the lives of people with diabetes easier and better.








