Best Continuous Blood Glucose Monitors of 2024

Updated January 26, 2024 at 12:00 PM PT

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Kim Won Shin

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Marcy Livingston Marcy Livingston

Marcy Livingston CNET Contributor

Marcy Livingston is a health and wellness writer and certified integrative nutrition health coach. She writes about fitness and wellness for Well+Good, Women's Health, Business Insider,, and more. When she's not writing, she enjoys reading and attending her training classes throughout New York City.

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Kim Won Shin Senior Associate Editor/Wellness

Kim Won-shin loves to demystify the world of wellness, making it accessible to all readers. She is also passionate about exploring the intersection of health, history, and culture. Before she joined CNET, she contributed articles to Glamor, MindBodyGreen, Greatist, and other publications.

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Continuous blood glucose monitor perfect for pairing with your phone or Apple Watch

Dexcom G6

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Best long-term continuous blood sugar monitor

Eversense CGM system

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monitoring Blood glucose level For people with type 1 or type 2 diabetes, it is necessary as part of the daily diet.of traditional method Pricking your finger to check your blood sugar levels isn't convenient for most people, but thankfully there are alternatives. Continuous glucose monitors (CGMs) are designed to be worn and used for extended periods of time. Checking your blood sugar levels is as easy as checking your phone. Continuous blood sugar monitoring devices could be worn on the abdomen or arm and help him make decisions throughout the day based on blood sugar readings, helping him manage his diabetes.

We consulted doctors and researched the most popular models to handpick the best continuous blood glucose monitors on the market. Be sure to talk to your doctor about diabetes monitoring options to create the health monitoring plan that's best for you.

Best Continuous Blood Glucose Monitor of 2024

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This meter is recommended by Dr. Rebecca Fenichel, endocrinologist at Westmed Medical Group, and was previously recommended by Dr. Nate Favini, medical director at Forward. “For anyone interested in deeper insight into their glucose levels, I recommend the Freestyle Libre for continuous glucose monitoring,” Favini said. (Note from January 25, 2024: Since this list was first published, Freestyle Libre 3 is now available. This sensor is smaller than the Libre 2 and sends readings directly to your smartphone every minute, among other perks).

“By putting a sensor on your arm, you can constantly track your blood sugar levels throughout the day and understand what makes them go up or down,” he said. “People are often surprised to find out that foods they thought were good for their blood sugar levels could be causing a spike in blood sugar levels. Continuous blood sugar monitors are expensive, but what kind of diet and exercise do they do?” It helps you understand what’s best for you.”

To read your blood sugar levels with Freestyle Libre, simply scan with your CGM device to get a reading. You can also optionally set off an alarm if your blood sugar levels are too high or too low.

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“We believe that continuous blood glucose monitoring is a valuable tool in the management of both type 1 and type 2 diabetes,” said Dr. Josh Emdur, Medical Director of SteadyMD. “CGM data provides actionable insights to help patients track their blood sugar response to dietary choices and activity levels.”

With Dexcom G6, you don't need to manually scan to get blood sugar readings. Instead, it takes measurements wirelessly with a dedicated receiving device or your phone or Apple Watch. The Dexcom G6 reads your blood sugar every 5 minutes and tracks your blood sugar levels as long as you wear it, day and night. You can set a custom range for your blood sugar levels, and you'll receive a notification when your blood sugar levels fall into the low or high blood sugar range you set.

“For patients using insulin pumps, the Dexcom G6 can be connected to the pump to provide a closed-loop system that turns off the insulin if it's running low. is also approved and provides continuous monitoring, all the time on your mobile phone,” Fenichel said. (Note, January 25, 2024: Since this article was first published, Dexcom G7 released. This sensor is smaller than the G6 and has an improved alarm system and a few other differences. )

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If you want a device that you can set up yourself and don't have to worry about reinserting for up to 180 days, Eversense is a great choice for diabetes management. Your healthcare provider inserts the sensor and places the transmitter over it.

Once the sensor is installed, it will not need to be replaced for approximately 180 days, extending the lifespan of the sensor. The transmitter itself can alert you if your blood sugar levels are too high or too low, and can also send readings wirelessly to your phone via an app. You can share your blood sugar data from the app with your doctor or anyone else who wants to check your blood sugar readings.

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The Guardian Connect System is a CGM that can instantly tell you your current blood sugar readings through a connected app, and also provides easy access to trends and data on your blood sugar levels over time. One of The Guardian's standout features is the ability to receive “predictive” alerts about sugar. Unlike other CGM systems that alert you when your blood sugar levels are already high or low, The Guardian uses technology that proactively predicts when your blood sugar levels will be high or low. Another feature that comes with this monitor is the Sugar.IQ diabetes assistant app for diabetes management. This app uses data to help you decide what kind of diet, exercise, and insulin will work best for you.

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When choosing a continuous blood glucose monitor on this list, consider models that your doctor has previously recommended. We are also considering including models with CGMs that have long sensor life and are popular with diabetics.

“Continuous blood glucose monitors can more intensively monitor blood sugar levels in diabetic patients,” Fenichel said. “These are particularly suitable for patients who need to be checked multiple times a day or who want to get feedback more frequently throughout the day.”

Anyone can buy a regular blood glucose meter, but a CGM system requires a doctor's prescription. Although your doctor may recommend a continuous blood glucose monitoring device for reasons related to your personal health and lifestyle to track your blood sugar trends and stay on top of your insulin levels, all CGM devices Diabetes care plans specific to people may not work.

CGM devices can also provide you and your doctor with more information about your blood sugar levels than standard meters. For example, the device can warn you about low blood sugar levels if they drop too low. It's a feature that helps patients avoid hypoglycemia,” Fenichel said. “You can tell not only what your current blood sugar level is, but also whether it's rising or falling.”

Here are some factors to consider when purchasing a continuous blood glucose monitor.

  • scan frequency: Real-time CGM continuously scans your blood sugar levels, automatically sends the data to your phone or receiver, and sends you periodic alerts about your blood sugar levels. In contrast, intermittent scan CGMs require you to scan the CGM with your cell phone or receiver to see the data. Some CGMs measure blood sugar levels more frequently than others.
  • Connectivity: Consider whether you want to connect your CGM to your smartphone or to a receiver. If you use a mobile phone, be sure to check whether the app is easy to use or offers special features.
  • Test type: Consider where the CGM's sensor will be placed on your body, how it will be inserted, and how often it will need to be replaced.
  • Insurance coverage: Find out if the CGM you're interested in is covered by insurance and how much it will cost to maintain and replace parts over time.

Can I get continuous blood sugar monitoring without a doctor?

No, continuous blood glucose monitors are available by prescription only. However, you can get regular blood sugar monitoring without a doctor.

Is continuous blood sugar monitoring covered by insurance?

Many insurance plans, Medicaid or Medicare, cover continuous blood glucose monitoring, but prior authorization may be required.

Which CGM is the cheapest?

The Abbott Freestyle Libre 2 retails for just $116. However, the cheapest way to obtain a continuous blood glucose monitor is through insurance, Medicaid, or Medicare. It may even be available for free.

The information contained in this article is for educational and informational purposes only and is not intended as health or medical advice. Always consult your physician or other qualified health provider with any questions you may have regarding a medical condition or health objectives.

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