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Technology & Innovation - Dexcom

On the left a mum with two daughters sat on a sofa playing with lego, in the center a man sorting the sensor out on his son, on the right a daughter with her dad playing with a teddy. Dexcom logo in the middle.

Automatic glucose readings sent straight to your smartphone*

Keeping a close eye on your glucose levels is crucial in managing your diabetes. But this can feel like a never-ending numbers game that requires constant finger pricking and a lot of guesswork.

Dexcom Continuous Glucose Monitoring (CGM) Systems allow you to see your glucose readings in real-time, without finger pricks* or scanning¹. So, with a glance at your optional receiver, watch, or compatible smartphone† you can view your numbers anytime and anywhere.


A young boy is asleep in bed whilst his mum checks his glucose levels on her phone.
A little girl smiles and looks at the camera, she has a glucose monitor on her arm.

Dexcom Warrior, Ava, is a little girl living her best life with type 1 diabetes (T1D). Her mum shares her preparation checklist, special considerations and how they use Dexcom CGM to help manage Ava’s diabetes while she’s at school,‡ Read Ava’s story.

It’s helped her to start becoming a bit more independent in managing her own glucose levels. But it also still enables her to be a care-free child as myself and her other caregivers can easily manage it without the need to keep finger pricking her*. One of the main benefits is also helping us all to get more sleep without worrying.

– Rebecca, Ava’s mum

An Introduction to Continuous Glucose Monitoring

Instead of looking at one glucose number at a single moment in time, Dexcom CGM tracks your glucose levels day and night. A slim sensor is inserted just beneath the skin using an automatic applicator. The sensor wire connects to a small transmitter that sends automatic glucose readings straight to a receiver or compatible smartphone†. For people with diabetes, Dexcom CGMs gives a more complete picture of glucose numbers and trends for better diabetes management§ and a healthierˡˡ,² more confident life without the need for finger pricks* or scanning.


Dexcom - An Introduction to rtCGM

Dexcom - An Introduction to rtCGM

How Dexcom CGM Changed Our Story

Dexcom - Clare and Mylee

Dexcom - Clare and Mylee

The Dexcom CGM Difference

Dexcom Continuous Glucose Monitoring (CGM) systems are proven to lower HbA1c and increase time in range⌗,²⁻⁶. With approved use across multiple wear locations**,¹, you can wear Dexcom CGM your way and get back to doing the things you love.

Here for the highs and lows

Dexcom CGM systems, such as Dexcom ONE+, feature customisable day and night alerts that can warn of serious highs and lows. Share your data with family and friends who support you†† and you can see the impact of meals, exercise and insulin on your glucose levels throughout the day.

A girl is sat on the floor checking her glucose levels with her smart watch.

Meet the Dexcom CGM Systems

A phone and the dexcom ONE+ sensor
A phone and the dexcom G6 sensor
A phone and the dexcom G7 sensor

Find the right Dexcom CGM System for you†

Dexcom ONE+

Best for people with type 1 or type 2 diabetes who are looking for a smarter, easier¶¶,§§,⁷ and more effectiveˡˡˡˡ¶¶,§§,²⁻³,⁶ way to manage diabetes – available on prescription.ᵝ

Dexcom G6 & Dexcom G7

Best for people with type 1 diabetes who may need extra support. This includes those who are hypo unaware, pregnant, children, and those that want connectivity with insulin pumps##, insulin delivery systems that connect via Glooko, and health or lifestyle apps.

Compare products here


With over 80+ connected partners, Dexcom CGM is the leader in connectivity†††,⁸

Dexcom CGM systems not only give you automatic glucose readings 24/7*, but they’re also designed to connect to insulin pumps, insulin delivery systems via Glooko, digital health apps, and lifestyle devices***. With leading connectivity to your devices and tech, Dexcom is the most connected CGM brand in the world!⁹


Dexcom - Connections Campaign

Dexcom - Connections Campaign

A little girl is having a piggy back from her mum.

Become a Dexcom Warrior

Our everyday heroes juggle their diabetes amongst everyday life. Dexcom Warriors are part of a community who come together to share stories, show support and spread a message of strength to other individuals and families. As a Dexcom Warrior you will:

  • Keep up-to-date with all the latest tech, news, and events with our monthly Warrior newsletter.
  • Attend local events with Dexcom to help spread the word.
  • Get your hands on an exclusive Warrior Welcome Kit.

Join our Warrior community and follow @DexcomUK on Instagram and Facebook to connect with like-minded individuals who can inspire you too.


Visit our website www.dexcom.com for more information and resources.

*If your glucose alerts and readings from Dexcom CGM systems do not match symptoms or expectations, use a blood glucose meter to make diabetes treatment decisions.
† Smart devices sold separately. For a list of compatible smart devices, please visit www.dexcom.com/compatibility.
‡ All responses are opinions of Ava, a Dexcom Warrior, and her mum Rebecca.
§ Compared to Blood Glucose Meter patient use.
|| Based on a reduced risk for complications with better glycaemic control. DCCT Trial.
¶ Results obtained with a prior generation Dexcom CGM system.
# When compared to SMBG testing.
** Dexcom G7 patients can use their abdomen and back of upper arm or patients 2 to 6 years old can also choose their upper buttocks. Dexcom G6 patients can use their abdomen and back of upper arm or patients 2 to 17 years old can also choose their upper buttocks. Dexcom ONE+ patients aged 7 or older can use the back of the upper arm or abdomen or patients 2 to 6 years old can also choose their upper buttocks.
†† Internet connectivity required for data sharing. Following requires the use of the Dexcom Follow App on a compatible smart device. Followers should always confirm readings on the Dexcom CGM App or receiver before making treatment decisions.
§§ Results obtained with Dexcom G7 study, which shares the similar features and usability.
||||Results obtained with a previous generation of Dexcom CGM system and are applicable to Dexcom ONE+ given similar feature sets and better performance and usability.
¶¶ Compared to Blood Glucose Meter patient use.
## Connectivity to pumps for G6 and G7 will differ. For more information, please visit https://www.dexcom.com/en-GB/integrations-and-connectivity
***Compatible smart devices and insulin delivery devices sold separately. For a list of compatible smart devices visit, www.dexcom.com/compatibility.
††† Internet connectivity required for data sharing. Dexcom G6 is the most connected CGM system. Not all Dexcom systems have the same connectivity. Please check connectivity options at https://www.dexcom.com/en-gb/integrations-and-connectivity.

1. Decom ONE+, Dexcom G6 and Dexcom G7 user guides, 2023.
2. Lind M, et al. Diabetes Care. 2021.44(1).141-149.
3. Beck RW, et al. JAMA. 2017; 317(4): 371-378.
4. Welsh JB, et al. J Diabetes Sci Technol. 2024;18(1):143-147.
5. Aleppo G, et al. Diabetes Care. 2021; 44(12): 2729-2737.
6. Beck RW, et al. Ann Intern Med. 2017; 167(6): 365-374.
7. Dexcom Data on File. G7 UK Limited Launch Survey, 2022. N=100.
8. Dexcom, Data on File, 2024.
9. Dexcom, Data on File, 2024.

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