What is Continuous Glucose Monitoring?

Real-time continuous glucose monitoring provides a more complete picture of glucose levels, compared to what you can obtain from a blood glucose meter (BGM). More frequent access to glucose insights leads to more effective diabetes management, for you and people with diabetes in your care.1,2 

Dexcom G6


Smart devices sold separately and connected Smart device required to display readings on watch.†

The Difference is in the Data

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Some people with Type 1 diabetes may struggle to understand how diet and exercise play a role in their treatment, or how to effectively titrate insulin accordingly.


But with continuous glucose readings from Dexcom real-time CGM, users can see a complete view of their glucose levels in real time, including historic and current glucose values and rate of glucose change, without requiring action from the user providing users with actionable information, over and above a single BGM reading.

Continuous Insight, Day and Night  

Dexcom real-time CGM helps minimise the guesswork derived from making diabetes treatment decisions based on a BGM reading alone and requires zero finger pricks* or scanning to access glucose data, helping to empower self-management of diabetes. 

*If your glucose alerts and readings from Dexcom CGM System do not match symptoms or expectations, use a blood glucose meter to make diabetes treatment decisions.  

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Primary CGM Components

The Dexcom G6 CGM System consists of four main components: 



Easy insertion with the simple push of a button means people with diabetes can apply the sensor themselves with the support of instructions.  

Sensor and transmitter

Sensor and transmitter

Monitors interstitial glucose levels through a small wire inserted just underneath the skin, sending data wirelessly to the wearer's compatible display device.†  (10-day lifespan)


Fastened on top of the sensor; sends data wirelessly to the wearer's compatible display device (3-month lifespan). 

Display device

Display device

View real-time glucose data and trends either on a compatible smart device† or an optional receiver.

The Benefits of CGM for Insulin-Using Patients  

Proven outcomes support your patients' progress compared with conventional blood glucose management (BGM). 

Reduced Hypoglycaemia

Reduced Hypoglycaemia

The predictive Urgent Low Soon alert offered by Dexcom G6 is associated with reduced hypoglycaemia, without a corresponding risk in hyperglycaemia.‡,1 

HbA1c Reduction

HbA1c Reduction

The use of Dexcom CGM reduces HbA1c irrespective of using multiple daily injections(MDI) or pump insulin.

Increased Time in Range (TIR)

Increased Time in Range (TIR)

Patients using Dexcom CGM typically spend more time in optimal glycaemic range than those using BGM.3,4 

Quality of Life Improvement

Quality of Life Improvement

Use of Dexcom G6 improves quality of life and well-being.5,6 

Long-Term CGM Use Supports Long-Term Benefits and Outcomes

A three-year, real-world clinical trial—the longest CGM outcome study to date—reiterates the clinical impact of using rt-CGM Systems like Dexcom CGM. Study participants with type 1 diabetes (T1D) using a Dexcom rt-CGM System showed significantly reduced HbA1c levels, increased time in range (3.9-10.00 mmol/L), and decreased time below range (<3.1 mmol/L), independent of the insulin delivery method (Insulin Pump or Multiple Daily Injections).2

Real-time CGM supports improved diabetes management for your patients in a way that is both accessible and sustainable. Whether your patients are sitting down for a meal, leading a presentation, or getting ready for bed, they can feel more confident in their daily diabetes treatment decisions that help shape the rest of their lives.

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Maximise Your In-Person and Remote Appointments

Dexcom Clarity

Optimised data sharing and reporting software, like Dexcom Clarity‡‡, allows healthcare professionals to access and review CGM reports that show patterns, trends, and specific data insights for each patient. 

Learn more about Dexcom Clarity and how you can incorporate your patients’ CGM data into your practice, whether you consult your patients in-person or via virtual appointment.  


*If your glucose alerts and readings from Dexcom G6 do not match symptoms or expectations, use a blood glucose meter to make diabetes treatment decisions. 

† For a list of compatible smart devices, please visit www.dexcom.com/compatibility. Smart device required to display readings on watch. 

‡This predictive alert can be triggered with impending hypoglycaemia (glucose of 3.1 mmol/L or below is predicted to occur within the next 20 minutes). 

‡‡ Internet connectivity required for data sharing. 

1 Puhr S, et al. Diabetes Technol Ther 2019;21(4):155-8.  

2 Šoupal J, et al. Diabetes Care 2019;43(1):37-43. 

3 Beck, RW, et al. JAMA. 2017;317(4):371-378. 

4 Welsh JB, et al. Diabetes Technol Ther. 2019;21(3):128-132. 

5 Polonsky WH, et al. Diabetes Care 2017 ;40(6): 736-741. 

6 Olafsdottir AF, et al. Diabetes Technol Ther. 2018;20(4):274-284