What is a CGM?

Continuous Glucose Monitor 101

Tia avatar
Written by Tia
Updated over a week ago

With Veri you use a CGM sensor - CGM stands for continuous glucose monitor. It’s a small sensor that sits on the back of your arm and measures your glucose around the clock. As you can see, it’s tiny, and you won’t even notice it in daily life.

No pain – even when inserting

The sensor reads your glucose with a flexible filament, and applying the sensor is painless.

When you first open the app, you'll receive step-by-step instructions for how to apply the sensor. Always open the app first before inserting the sensor.

You can preview those instructions here.

Live freely

You can do anything you’d normally do while wearing a CGM. Running, swimming, and lifting weights are all gravy.

Ditto for showering. You won’t even notice the sensor while you sleep.

Also, Veri comes with a protective patch that almost completely eliminates the already-small risk of snagging it on a doorway.

Stores 8 hours of readings

Veri uses an Abbott Freestyle Libre, which holds 8 hours of glucose data at a time.

This means you have to scan it with your phone at least once every 8 hours to get uninterrupted data. (Once when you wake up, once before bed, and a time or two in between.)

Scanning any less frequently will result in data gaps. So, more data = more value from the app.

Lasts 14 days

CGMs last for two weeks from insertion. They take an hour or so to calibrate, and aren’t quite as accurate in the very first and very last part of their lifecycle.

How does a CGM compare to other glucose measurement devices that use a finger prick?

Comparing finger pricks and CGM's is not really directly comparable, as one takes a one-time measurement from a capillary resource whereas the other measures continuously from interstitial fluid. CGM's are meant to track trends and see your overall condition with glucose, whereas blood tests give you a snapshot of a given (predetermined) moment. As the CGM measures from interstitial fluid, there is also a slight delay compared to the blood measurement.

Learn more about the differences here.

Note: Veri shall not be used for medical use or practice. This includes use cases of seeking medical advice, preventing, diagnosing, or treating any medical condition, including conditions related to blood sugar control such as diabetes.

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