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Harrel C.
Dexcom Warrior

Dexcom Mobile & Watch Apps

The Dexcom G6 CGM System displays real-time glucose readings along with other helpful features, right on your smart device* so you can make your diabetes management decisions anywhere. 

See Your Glucose Numbers at a Glance, Create Alerts and Much More!

With the Dexcom CGM mobile and watch apps, you'll be able to check your glucose readings in real time and use other helpful features like:


  • Trend arrows
  • Trend graphs
  • Log of daily activities
  • Customizable alerts
  • Ability to share your data with up to 10 followers



Know When You're Headed High or Low

Make diabetes treatment decisions with zero fingersticks and no calibration. The arrows will display your current glucose number and whether it may increase or decrease within the next 30 minutes. Since everyone responds differently to diabetes treatment, talk to your healthcare provider to know how to manage your glucose numbers. 

The Dexcom G6 CGM App Also Works on Smartwatches

Besides your phone, discreetly view your glucose data on your Apple Watch® and Android watch OS display screens, allowing you to manage your diabetes treatment on the go. You can even set up the watch face to display your number and arrow next to the time.



Watch can only be used with compatible smart device

Dexcom G6 CGM Mobile & Watch Apps FAQs

Looking for more information about Dexcom G6 CGM mobile and watch apps? Browse through our frequently asked questions to find answers. 


Can I view my Dexcom G6 CGM data on an Apple Watch?


Yes, you can check your CGM information on your wrist! The Dexcom G6 app supports Apple Watch and can be used to discreetly view your glucose reading, trend arrow, and trend graph. Use the digital crown to scroll the trend graph view between 1, 3, or 6 hours of data. 

You can also view your number and arrow as a complication on your watch face. You can choose from 5 complication styles depending on your preferred watch face.

To set up Dexcom G6 on your Apple Watch you’ll need to use the Watch app located on your compatible iPhone. To add complications, use the Watch app to choose the watch face and complication style that you want. If you would like the color of your Dexcom complication to reflect your glucose status, choose the multicolor option for the watch face.

See your Apple Watch instructions for more detail on setting up an app on the watch. 

When you wake your Apple Watch, it syncs your current CGM data from your compatible iPhone. There may be a brief delay before your watch app or complication shows current information. Place the Dexcom G6 app in the Dock and turn on background app refresh for best performance.

Your Apple Watch will only communicate with your compatible iPhone, not the Dexcom G6 Transmitter. You will not receive alerts, alarms, and other notifications on the watch unless it is connected with your compatible iPhone. For example, if you have your watch on and you go out, but leave your iPhone at home, you will not receive any CGM updates.

Dexcom G6 App v1.4 and Apple Watch running watchOS 3 or later required. US only.




Is the Dexcom G6 App compatible with Siri?


With the latest G6 app update you can now ask Siri to recite your Dexcom glucose readings out loud and display your graph directly on the lock screen.

This feature is only compatible with iOS devices using iOS 12 and above and supported Apple Watches and watchOS. Click here to view our compatible smart devices.

Siri activation:

To enable please follow these steps:

  • Make sure that you’re connected to the internet. 
  • Click on “Siri Shortcuts” from G6 App Settings 
  • Tap the “Set up Siri Shortcuts” button 
  • A setup wizard will launch to guide you through setting up this feature. If you haven’t yet enabled Siri on your iOS device, you will be guided to do that first. 
  • Record the phrase you would like to use when you want to activate the task. We recommend “What’s my glucose?”. Click the red button to activate recording and again to stop recording. 
  • Confirm – After recording you will see the transcribed text of the recorded phrase. Here you have the option to edit this phrase. Click “Done” to save.


Siri response:

When a reading is available you can activate Siri by using the recorded phrase (see recording instructions above) and one of the following standard phrases will be read:

"Dexcom G6 says..." 

  • you're 110 and steady. 
  • you're 110 and slowly rising. 
  • you're 110 and slowly falling. 
  • you're 110 and rising. 
  • you're 110 and falling. 
  • you're 110 and rapidly rising. 
  • you're 110 and rapidly falling


If a glucose reading is not available, you will be instructed to check the app for more information.

This is an optional feature that must be set up by the user via a set up wizard in the G6 app. To use this feature, you MUST have Siri enabled on your phone and you must be connected to the internet. Siri responds only to your voice and the phrase you choose.



What are the latest updates in the G6 CGM App?


With the latest 1.4 Dexcom G6 App version update the follow features are now available for Dexcom users:


Siri Shortcut

You can now ask Siri to recite your Dexcom glucose readings out loud and display your graph directly on the lock screen. 

This is an optional feature that must be set up via a setup wizard in the G6 App.  For information on how to enable this feature please visit our FAQ

* This is relevant to the iOS 12 update and only affects iOS users. 



Critical alerts, front and center

Dexcom has created custom alert categories that will now appear on your iPhone lock screen. This is to ensure that in an unlikely event of multiple Dexcom alerts at once, critical alerts such as Urgent Low are not covered by non-critical alerts such as 24hr sensor expiry.  

* This is relevant to the iOS 12 update and only affects iOS users.


24-hour Sensor Expiration Reminders

Automatically receive an alert 24 hours before your sensor expiration so you can make sure you have sufficient time to prepare. 


Access to Dexcom CLARITY directly through the G6 App

Users now have easier access to Dexcom CLARITY through a direct link in the Dexcom G6 App. Links can be found on the Trend screen and the Events History Screen. Dexcom CLARITY provides users with additional dashboards and glucose information.


Dexcom Share

G6 users can now share their glucose readings with up to 10 people through the Share feature on the G6 App.

Please note- this does not impact the Dexcom Follow App.


Apple Watch Series 4 Face Complication

Apple Watch users can now select a new Graphic Circular complication to view their glucose readings on their Series 4 Watches.

To use, you will need to select the new complication in your Watch app. For instructions on how to select a new complication visit our FAQ.

* This only affects iOS users with a Series 4 watch.


Integration with Google Fit

Google Fit can now display your Dexcom CGM data on a 3hr delay. For more information on how to connect to Google Fit please visit our FAQ.

*This only affects Android users


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


The Dexcom G6 app has to be downloaded and is different from the Dexcom G5 Mobile app. (Please note: The G6 system will not work with the G5 Mobile app.) It is available for free from the Apple App or Google Play stores. The app is named “Dexcom G6”.

Watch can only be used in conjunction with a compatible smartphone.

Interested in Getting the Dexcom CGM System?

If you are ready to take the next step, the process is simple. Provide us with a few details and we will contact you to begin your order.

* For a list of compatible devices, visit


† Fingersticks required for diabetes treatment decisions if symptoms or expectations do not match readings



Failure to use the Dexcom G6 Continuous Glucose Monitoring System (G6) and its components according to the instructions for use provided with your device and available at and to properly consider all indications, contraindications, warnings, precautions, and cautions in those instructions for use may result in you missing a severe hypoglycemia (low blood glucose) or hyperglycemia (high blood glucose) occurrence and/or making a treatment decision that may result in injury. If your glucose alerts and readings from the G6 do not match symptoms or expectations or you’re taking over the recommended maximum dosage amount of 1000mg of acetaminophen every 6 hours, use a blood glucose meter to make diabetes treatment decisions. Seek medical advice and attention when appropriate, including for any medical emergency.