Using Your Dexcom CGM System

Setting Up Sharing and Dexcom Clarity

How do I get to Dexcom Clarity?

Go to from an internet browser with internet connection. Review Clarity's list of computer and internet requirements if needed.
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Calibration and Accuracy Issues

Can I calibrate Dexcom G7?

Calibration is not required. If you want to calibrate, you can log it as an event within the G7 App.

Common Activities with Dexcom CGM

Can I get Dexcom G7 wet?

Once inserted, the sensor is waterproof up to 2.4 meters. The receiver is not.

Can I wear Dexcom G7 through airport security or while flying?

You can wear your Dexcom G7 sensor when going through walk-through metal detectors and Advanced Imaging Technology (AIT) body scanners.

Smartwatch and Accessories

How do you install the Dexcom G7 Apple Widget?

To install the Dexcom G7 Apple Widget, you must first update your Dexcom G7 App to version 1.7.0 or later via the App Store. Then follow our steps by reading our full FAQ article.

How does the Dexcom G7 Apple Widget work?

The Dexcom G7 Apple widget lets you see your glucose numbers on your lock screen or home screen without opening the app. Read our full article.

Using the Dexcom CGM App

Are there any changes to alerts for Dexcom G7 compared to Dexcom G6?

Dexcom G7 has new alert sounds and sound options.

Inserting and Starting Your Sensor and Transmitter

What is a sensor code and why do I need one?

A sensor code allows you to use the Dexcom ONE CGM System without the need for fingersticks or calibrations. When you start a new sensor, you must enter a code into your display device, either manually or by taking a photo, as each sensor has its own code printed on the back of the adhesive patch. Do not use a code from a different sensor or make up a code. If you do, your sensor will not work as well and could display inaccurate data.

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