See how Dexcom products can help optimise glucose control and support the quality of life of people with diabetes.

A pioneer and leader in real-time CGM
Dexcom is dedicated to developing innovative glucose monitoring technology and products to help people with diabetes and Healthcare Professionals improve diabetes management.
1st mobile CGM system
1st CGM system indicated for non-adjunctive use (insulin dosing without finger pricks*)
1st real-time integrated CGM (iCGM) approved for use in the UK
1st brand offering a range of real-time CGM products tailored to the needs of people with diabetes using insulin.
*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.
Redefining the CGM landscape
Here at Dexcom we’ve spent the last 20 years innovating and developing simpler and better ways for people with diabetes to measure, track and manage their glucose levels. Why? Because we believe data has the power to make life with diabetes, better.
Dexcom offers a range of real-time CGM products tailored to the needs of people with diabetes using insulin.

Dexcom ONE real-time CGM System
Best for people with type 1 or type 2 diabetes using insulin who are looking for an easy and accessible rt-CGM system.

Dexcom G6 real-time CGM System
Best for people with type 1 using a connected insulin dosing system.

Dexcom G7
Best for people with type 1 diabetes who may need extra support, such as people who are hypo-unaware or children.
Formatted Block Title
Dexcom provides exceptional accuracy1
Dexcom provides exceptional accuracy1
Dexcom G6 and Dexcom ONE** Performance Metrics1
With an overall MARD of 9% and a sustained accuracy over time,1 The Dexcom G6 demonstrates exceptional accuracy.
%15/15 (0.8 mmol/L)ǂ |
%20/20 (1.1 mmol/L)§ |
MARD¶ | |
---|---|---|---|
Overall (Combine study data from paediatrics and adults, see below) | 83.3% | 93.9% | 9.0% |
Overall accuracy over time | |||
Day 1 | 81.5% | 92.2% | 9.3% |
Days 4 - 5 | 85.8% | 95.5% | 9.4% |
Day 10 | 82.4% | 92.5% | 9.0% |
Accuracy at various rates of change2
Rising or falling, Dexcom G6 demonstrates accuracy even when levels rapidly or slowly rise or fall.2
CGM RATE OF CHANGE (mg/(dL · min)) |
%20/20 |
---|---|
< -2 | 89.7% |
[-2, -1) | 93.0% |
[-1,0) | 93.9% |
[0.1) | 92.7% |
(1,2] | 89.6% |
> 2 | 87.1% |
Accuracy for G7 - see G7 User guide
The Dexcom difference
Dexcom real-time CGM systems give a full picture of glucose numbers and trends to help better manage diabetes, so people with diabetes can live a healthier, more confident life.
All Dexcom real-time CGM systems offer:

Real-time readings.
Reliable glucose numbers give a full picture of users' data and trends

Exceptional accuracy.‖
Confident treatment decisions, even when glucose is changing rapidly

Actionable insights.
Easily see users' progress with Dexcom Clarity for more informed treatment decisions

Proven results.
Lowers HbA1c, increases time in range, and reduces hyper- and hypoglycaemic events 5-7
*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.
Interoperability in insulin delivery
Dexcom G6 real time CGM System has integrated its technology through insulin pump and digital health partnerships to support more customisable and convenient treatment options.
We are working very closely with our partners to support them on integrating Dexcom G7 real time CGM System, now with CE mark, into their insulin delivery systems as soon as possible.
Current partnerships available in the UK that work with Dexcom G6 include:

Tandem t:sIIm X2 pump with Control-IQ Technology

Ypsomed Pump

Diasend® Data Management System
Maximise Your In-Person and Remote Appointments

Optimised data sharing and reporting software, like Dexcom CLARITY‡‡, allows healthcare professionals to access and review reports that show patterns, trends, and specific data insights for each person with diabetes.
Learn more about Dexcom CLARITY and how you can incorporate your patients’ CGM data into your practice, whether you consult in-person or via virtual appointment.
Why CGM

What is CGM?
Learn how continuous glucose monitoring (CGM) is a powerful tool to help improve diabetes management.

Proven Outcomes
Review evidence demonstrating the impact CGM use can have on glycaemic control.

Who is eligible for real-time CGM?
Whether using injections, Flash or pump, people with diabetes may benefit from Dexcom real-time CGM.
* 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.
** Results obtained with Dexcom G6 study (which has the same algorithm as Dexcom ONE).
§ Compatible insulin-delivery device sold separately.
† Compatible smart devices are sold separately. For a list of compatible smart devices, please visit www.dexcom.com/compatibility
‡‡ Internet connectivity required for data sharing. Following requires the use of the Follow App. Followers should always confirm readings.
‡ % of CGM readings within ±15 mg/dL of YSI lab reference values ≤ 100mg/dL or ±15% of YSI values > 100mg/dL.
§ Analogous to %15/15 (see previous footnote).
II Results obtained with a prior generation Dexcom CGM system; similar results expected with Dexcom G7 given similar or better performance and enhanced feature sets and usability.
¶ MARD is a statistical measure of accuracy; the lower the number, the better.
1 Dexcom ONE, G6 and G7 User Guide.
2 Wadwa RP et al. Diabetes Technol Ther. 2018; 20(6):395-402.
3 Beck RW et al. JAMA. 2017; 317(4):371-378.
4 Welsh JB et al. Diabetes Technol Ther. 2019; 21(3):128-132.