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Dexcom ONE+ Sensor - Single

Based on 56 reviews
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Alexandra Smith - Senior Medical Writer
Alexandra Smith
Senior Medical Writer
11/06/2024
10/06/2026
James O'Loan - CEO & Prescribing Pharmacist
James O'Loan
CEO & Prescribing Pharmacist
2084549

Please note that the manufacturer is unable to replace sensors that have been purchased for use on animals; this is because they are not licensed for this use.

Buy Dexcom ONE+ Sensor - Single

The Dexcom ONE+ features an all-in-one sensor and transmitter that automatically sends glucose readings to a receiver or compatible smartphone. The sensor is preloaded in the applicator and can be inserted with the push of a button. 

Once inserted, it can be worn for up to 10 days. Dexcom ONE+ is compatible with the latest Apple iPhones and many popular Android devices. Please check if your smart device is compatible with Dexcom ONE+ here.

 

Directions

You will use an applicator to insert a small sensor wire under your skin, which is held in place by an adhesive patch. The sensor can be worn on your arm, abdomen, or upper buttocks (children ages 2-6). It continuously measures glucose levels in the interstitial fluid around the clock. 

Every 5 minutes, the sensor wirelessly sends a glucose reading to your compatible smart device or receiver. This allows you to view your current glucose levels in real-time and your historical trends.

The Dexcom ONE+ app and receiver can also be configured to send custom alerts when specific glucose thresholds are reached. For more information on how to use Dexcom ONE+, please refer to the manufacturer's website.

 

Warnings

To ensure safe use of the Dexcom ONE+ Continuous Glucose Monitoring System, follow all instructions, including indications, contraindications, warnings, precautions, and cautions. 

Improper use may result in missing a severe hypoglycemia (low blood glucose) or hyperglycemia (high blood glucose) event or making a treatment decision that could cause injury. 

If Dexcom ONE+ glucose alerts and readings do not match your symptoms or expectations, use a fingerstick blood glucose reading from your meter for diabetes treatment decisions. Seek medical attention as needed.

Review the product instructions before using Dexcom ONE+. Important user information is available on the Dexcom website and in the product instructions.



Age restrictions

This product is not suitable for children under 2 years old. 

 

Pregnancy and breastfeeding

Dexcom ONE+ is suitable for pregnant women.

 

If you are pregnant or breastfeeding, think you may be pregnant or are planning to have a baby, you must ask your doctor or Chemist4U pharmacist for advice before using any new product.

 

Important information

Please read the included leaflet carefully before using this product.

Please contact your GP if appropriate regarding this product.

 

Dexcom ONE+ Sensor - Single Reviews

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By Harry Patel,
March 24, 2026
It's ok not as good as Libra which is what I'm going back to. Still does the job but I felt it was like coming off or something but didn't feel same as Libra but don't forget this is half the price of Libra.
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By Chris Hodcroft,
March 17, 2026
Great to follow to get your glucose on track
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By Fiona Lane,
March 10, 2026
Seems reliable
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By Carl Alleyne,
March 03, 2026
Excellent monitor, very accurate readings. Small device with super adhesion. Downsides, only lasts for 10 days so quite expensive monthly costs, even a subscription is £100+. Also with the One Plus, there is no direct compatibility with a smart watch, having to use a third party app. Overall, I wish they would produce a 30 day affordable device, it's not beyond the realms of capability or technology.
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By L Alldridge,
February 24, 2026
This is my third one and it’s so good to keep note of of my sugars

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