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Dexcom ONE Sensor 3-Pack
The Dexcom ONE sensor continuously measures glucose levels just beneath the skin.
Smartphone compatibility applies to this product.
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Free Overlay Patch

Limit 3 per order

Dexcom account required

Each sensor comes with an auto-applicator making insertion very quick and simple. Each sensor can be worn up to 10 days. Enjoy up to 30 days of continuous glucose monitoring with each Sensor 3-Pack.
This product is only compatible with other Dexcom ONE products and compatible smart devices.

Free Overlay Patch

You qualify for FREE Overlay Patches. Limit 1 Per Order.
Dexcom sensors are manufactured with a special adhesive to help them stick to your skin after sensor insertion. However, skin types differ and you may notice that your sensor patch begins to peel off before the end of your sensor session. This pack of 10 overpatches may help keep adhesive secure and clean.
Warranties and returns policies apply to this product.
Overlay patch - 10 pack

How Dexcom ONE works

Person holding Dexcom one applicator and sensor on abdomen
A small discreet sensor measures glucose just beneath the skin.
Person applying Dexcom ONE sensor to abdomen
The transmitter sends a glucose readings every 5 minutes to your compatible smartphone°.
Person checking data on Dexcom ONE app
The Dexcom ONE app shows you where your glucose levels are, and where they are heading.
Dexcom supplies with receiver, sensor and transmitter.

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Dexcom ONE subscription

Get all your Dexcom ONE supplies delivered to your door, with automated payments and shipments. The easiest way to enjoy the full-time wear of Dexcom ONE, whilst making the best savings!
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Two smartphones showing Dexcom ONE app glucose values in mmol and mgdl

Your Smartphone compatibility

In order to use to use the Dexcom ONE app, you first need to ensure that it your smartphone's model and operating system is compatible with our app.
Dexcom ONE box with transmitter

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Dexcom ONE Transmitters

The Dexcom ONE transmitter snaps into the sensor and sends real-time glucose readings wirelessly to a compatible smartphone°.

Have questions about the Dexcom ONE CGM System?

  • Read FAQs
Please review the Dexcom ONE User Guide before using. Indications, contraindications, warnings, precautions and other important user information can be found in the product instructions included with the Dexcom ONE. Discuss with your healthcare professional how you should use the information displayed on Dexcom ONE to help manage your diabetes. The product instructions contain important information about troubleshooting and the performance characteristics of the system.
° For a list of compatible devices, visit
ˣ Shah VN, et al. Diabetes Technol Ther. 2018;20(6):428–433.

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