The New Dexcom ONE+

For essential alerts you need

Dexcom ONE+ is our smart and easy real-time CGM system, designed to provide essential glucose insights for more confident treatment decisions.
¶ Smartphone sold separately. For a list of compatible devices, visit
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A Smart, Easy and Effective way to manage your diabetes1-4,7

Smart & Accurate5

Along with Dexcom G7, Dexcom ONE+ is our most accurate CGM system.5 It allows for confident treatment decisions in real-time (such as dosing insulin) and no fingerpricks*. Sending 24/7 real-time glucose numbers to your smartphone or receiver#, it automatically alerts you when your glucose levels fall out of your pre-set range.
*If your glucose alerts and readings from the Dexcom ONE+ do not match symptoms or expectations, use a blood glucose meter to make diabetes treatment decisions.

Customisable high and low glucose alerts:

Dexcom ONE+ offers the essential Dexcom alerts to meet your needs. With customisable high and low alerts, you know when glucose levels fall outside of an adjustable and preset high and low glucose range.
It features our unique delay 1st high option, allowing to further customise the system to choose if and when to receive high alerts. It was designed to reduce alert fatigue and allows you to adjust your alerts, making them more relevant, to fit your mealtime & insulin dosing schedule.
Woman with the Dexcom One+

Small and Discreet:

Along with Dexcom G7, Dexcom ONE+ is our smallest wearable yet. Its low-profile, and like all Dexcom CGMs, it offers up to 3 wear locations for maximum comfort.
Woman looking at her receiver

Easy to get started:

Dexcom ONE+ is designed for a smooth and easy start. Our self-onboarding gets you set up quickly. The intuitive in-app onboarding guides users through the set-up steps. In a few clicks, you are on. Looking for further connectivity with integration with your Tandem insulin pump? Learn about our Dexcom G7 CGM here.

Better insights for better diabetes management

Dexcom ONE+ can help you better understand how food and exercise affect your glucose levels: keep logs with Event Entry and track your progress with the Clarity Card.¶ ¶ ,6 The app even comes with a Share feature, which allows you to invite up to 10 family and friends to monitor your glucose patterns remotely, affording you and your circle of support greater peace of mind.##

More effective: proven outcomes to improve your quality of life

Real-Time CGM, such as Dexcom ONE+, is proven to improve quality of life by reducing hypoglycaemic and hyperglycaemic events, lowering HbA1C and improving time in range.2-4
Family Image of the Dexcom One Plus and Receiver

Meet Dexcom ONE+

• 60% smaller than the Dexcom G6 CGM. Measures glucose levels just under the skin.
• Sends glucose numbers to your phone
or receiver#
• Can be used for up to 10 days with an additional 12-hour grace period. Giving you added flexibility when you need to change your sensor at the end of the session
• Waterproof
• Essential alerts like the high and low glucose alerts
Smartphone app:
• Easy to use smartphone app so you can conveniently access your glucose readings
• Allows you to adjust the settings of your CGM to fit your lifestyle
• Connect with health apps, like Glooko, for a more seamless diabetes management
• Provides you with the ability to allow your family or friends to see your glucose data for added peace of mind
• Pocket-sized device for added flexibility
• Ideal solution if you do not have a compatible smartphone

• Includes most of the same great features as the smartphone app
¶, ¶ ¶
    Check my phone is compatible with Dexcom One+
    No compatible phone? Check out our optional receiver
    ¶ Smartphone sold separately. For a list of compatible devices, visit

    Supporting you in meeting your health goals

    Dexcom CGM systems are shown to improve overall well-being and treatment satisfaction of people with diabetes.||,4
    Icon with hands up

    Improved quality of life4

    Live life with peace of mind knowing that Dexcom ONE+’s accuracy has got your back.
    Time in Range Icon

    Increase time in range2,3,7

    Dexcom rtCGM systems are clinically proven to increase time in range.2,3,7 The more time you spend in range, the better you may feel and more you can do.
    Reduce Hypoglycaemia Icon

    Reduce hyperglycaemia and improve HbA1c2,3,7

    Proven to reduce Hyperglycaemia and improve HbA1c.2,3,7
    Man putting on Sensor

    It’s easy to get started with Dexcom ONE+

    Dexcom ONE+ was designed with enhanced onboarding features to get you started quicker than ever and back to doing what you love.
    • Easy, painless one-touch all-in-one sensor transmitter.‡‡‡
    • Faster, easier account creation and set-up.
    • Improved in-app self-onboarding to get you familiar with using your CGM in a few clicks.
    • Fast 30-minute warm-up - so start tracking your glucose numbers quickly.
    • Get Set Up
    • Shop here
    Dexcom One+ Sensor and Phone

    Stay connected with the Dexcom ONE+ mobile app

    Tracking your real-time glucose data, alerts and trends, all start here with the Dexcom ONE+ mobile app.

    We're here to support you.

    Contact us

    Call our 24/7 technical support line and we will do our best to assist you. Alternatively you can email us at [email protected].

    Shop Now!

    Click here to shop our online store at NZMS Diabetes (a Dexcom Company).

    Useful Resources

    Find all our useful resources like brochures and flyers.
    Always read the label and use only as directed. Read the warnings available on before purchasing. Consult your healthcare professional to see if this product is right for you.
    *If your glucose alerts and readings from the G7 do not match symptoms or expectations, use a blood glucose meter to make diabetes treatment decisions.
    ‡ The Dexcom ONE+ is approved for wear on the arm and abdomen, and ages 2-6 can also wear Dexcom ONE+ on the upper buttocks.
    || Results obtained with a prior generation Dexcom CGM system and are applicable to Dexcom ONE+ given similar feature sets and better performance and usability.
    ¶ Smartphone sold separately. For a list of compatible devices, visit # Optional receiver sold separately.
    ¶ ¶ Event Entry only available on smartphone app
    ## Separate Follow app and internet connection required
    † Dexcom ONE+ sensor is waterproof and may be submerged under 2.4 Meters of water for up to 24 hours without failure when properly installed.
    ‡‡‡ Results obtained with Dexcom G7, which shares the same hardware platform as Dexcom ONE+
    1 Dexcom Relationship Survey, 2023
    2 Beck RW, et al. JAMA. 2017;317(4):371-378.
    3 Beck RW et al. Ann Intern Med. 2017;167(6):365-374.
    4 Lind M, et al. Diabetes Care. 2021;44(1):141-149.
    5 Garg SK, et al. Diabetes Technol Ther. 2022;24(6):373-80.
    6 Dexcom ONE+ User Guide, 2023
    7 Martens T, et al. JAMA. 2021;325(22):2262-2272.
    The Dexcom ONE+ continuous glucose monitoring system is a glucose monitoring system indicated for continuously measuring glucose in the interstitial fluid in persons ages 2 years and older, including pregnant women. Dexcom ONE+ is designed to replace fingerprick blood glucose (BG) testing for treatment decisions. Interpretation of Dexcom ONE+ results should be based on glucose, trends and several sequential sensor readings over time. Dexcom ONE+ also aids in the detection of episodes of hyperglycaemia and hypoglycaemia, facilitating both acute and long-term therapy adjustments. Dexcom ONE+ is intended for use by patients at home and in healthcare facilities.
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    MAT-1606, MAT-3130


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