Setting Up Your G6 CGM System

Inserting and Starting Your Sensor and Transmitter

How do I start my Dexcom G6 sensor?

When you start a new Dexcom sensor, you must enter a code into your display device to use Dexcom G6 without fingerstick calibrations. Please make sure to follow each onscreen prompt step by step.
  • Read more

How do I insert my Dexcom sensor?

Dexcom designed the Dexcom G6 CGM System sensor auto-applicator for easier, more consistent sensor insertions.

Where can I insert my Dexcom G6 sensor?

Dexcom G6 sensors may be inserted on the abdomen (indicated for patients age 2 years and older) or the upper buttocks (ages 2-17 years). Sensor placement is important and you will want to change your insertion site with each sensor.

Is it painful to insert a Dexcom G6 sensor?

The Dexcom G6 auto applicator was designed for easier, more consistent sensor insertions. According to a survey of Dexcom G6 users, 84% reported that the initial sensor insertion was painless and 100% reported that the applicator was easy to use.

Using Your Sensor and Transmitter

Does the Dexcom G6 Continuous Glucose Monitoring (CGM) System require calibrations?

Dexcom G6 Continuous Glucose Monitor (CGM) requires no fingersticks or calibrations – just enter the unique G6 sensor code on the label during setup. Learn how to calibrate if needed.

Setting up Sharing and Dexcom Clarity

How do I log into Dexcom Clarity?

You must have a Dexcom account to use Dexcom Clarity. You must use the same Dexcom account for all your Dexcom devices.

Is Dexcom Clarity compatible with Dexcom G6?

Yes, Dexcom G6 is compatible with the Dexcom Clarity software. Patients will not need to register again, nor download a new Dexcom Clarity app, if they have an existing account.

How do I get to Dexcom Clarity?

Go to from an internet browser with internet connection.

How do I share my Dexcom G6 glucose data with followers?

Dexcom Share is a feature within the Dexcom G6 app that allows you to share your glucose data with up to 10 designated persons (followers). Learn how to enable sharing.

Using Your Receiver

Do I need to use my receiver?

Medicare requires the use of the receiver for their patients. For all other payers, the patient has the choice of what device to view their numbers.

How do I know which Dexcom receiver I have?

The two Dexcom receivers have different hardware, which makes it easy to tell them apart.

Do I need to use my Dexcom receiver for my Dexcom Continuous Glucose Monitoring (CGM) System to work?

You have the flexibility to use only the Dexcom G6 app, only the Dexcom receiver, or both at the same time, depending on your diabetes management preferences.

Changing Your Sensor and Transmitter

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

A sensor code allows you to use the Dexcom G6 CGM System without the need for fingersticks or calibrations.* When you start a new sensor, you must enter a code into your display device.

Understanding Data and Trends

How does the Urgent Low Soon alert work?

The Urgent Low Soon alert can warn users in advance (within 20 minutes) of a severe hypoglycemic event (55 mg/dL), which helps give them time to take appropriate action before an event occurs.

Blood Sugar Levels

What is the difference between the Urgent Low Soon alert and the Fall Rate?

The Urgent Low Soon alert notifies you when your Dexcom G6 reading is predicted to reach 55 mg/dL within 20 minutes. The Fall Rate notifies you when your glucose level is falling 2 or 3 mg/dL each minute.

System Overview

What components are required with the Dexcom G6 Continuous Glucose Monitoring (CGM) System?

The Dexcom G6 CGM System requires Dexcom G6 sensors, Dexcom G6 transmitters, and a compatible touchscreen receiver or smart device (subject to smart device compatibility requirements).

Smartwatch Compatibility

Why can’t I find the Dexcom G6 Android watch app?

A Google Play Store update changed the way Android watch apps are shared on the app store. The Dexcom G6 Android watch app isn’t compatible with this Google Play Store version yet, so the watch app isn’t visible in the app store.

Can I view my Dexcom G6 Continuous Glucose Monitoring (CGM) System data on an Apple Watch?

Yes, you can get Dexcom G6 CGM glucose monitoring data and readings on your Apple Watch if your watch is connected to a compatible smartphone. See how to set up.

How do I set up the G6 Android watch app face?

Follow these instructions in order to get the Dexcom G6 Android app watch face

Smartphone Compatibility

Can I view my Dexcom G6 Continuous Glucose Monitoring (CGM) System data on an Android Watch?

If your Android Watch is connected to a compatible smartphone, the Dexcom CGM app for Android will work with Android Wear watches that support custom watch faces and meet the app’s minimum OS compatibility requirement.

Why do dashes show up on my Dexcom G6 Apple Watch complication?

Apple stopped supporting the Modular Large watch face complication on watchOS 9. If you use the Modular Large Dexcom watch face complication, it will permanently show dashes

Can I share my glucose data with Google Health Connect?

Google Health Connect is Google’s health and fitness tracking app available for use with Android devices. You can enable the Dexcom G6 app to share glucose data with Health Connect, which displays glucose data with a three-hour delay.

Is the Dexcom G6 app compatible with Siri?

This feature is only compatible with iOS devices using iOS 12 and above and supported Apple Watches and watchOS.

Setting Up Your Smartphone or Receiver

How do I set up the Dexcom G6 app with my phone?

With the Dexcom G6 app version 1.4 and later, you can ask Siri to recite your Dexcom glucose readings out loud and display your graph directly on the lock screen.

If I am replacing my smart device, what will I need to do?

If you are replacing your smart device and use the Dexcom G6, please review the following instructions. These steps are applicable for only the Dexcom G6 and can be completed while in a current sensor session or at the time of a sensor change.

What are the recommended phone settings for the Dexcom G6 app?

Choose the phone you’re using to find out what the recommended phone settings are when using Dexcom G6 app.

What is the Android Do Not Disturb Permission?

Support for the Android Do Not Disturb Permission was introduced with the release of G6 Android app version 1.8.0. Safety is Dexcom’s top priority, so this new app permission is required to ensure you always get the Urgent Low alarm and important Dexcom alerts.
Privacy PolicyTerms of Use

LBL-1001419 Rev008

© Dexcom, Inc. All rights reserved.

US flag