Best Continuous Glucose Monitors of 2024 [CNET]

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Article updated on July 20, 2024 at 12:30 PM PDT

Make managing your diabetes a little easier with one of the best continuous glucose monitors.

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$330 at Total Diabetes

dexcom

Best continuous glucose monitor for pairing with phones or Apple Watch

Dexcom G6

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Best long-term continuous glucose monitor

Eversense CGM System

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While there isn’t anything wrong with the traditional method of monitoring blood glucose levels, a continuous glucose monitor, or CGM, is a much more convenient and less uncomfortable way to test. It is worn at all times, sticks to your skin and makes it so you can check your blood sugar on an app or even your Apple Watch.

Continuous glucose monitoring devices can be worn on the belly or the arm and may help you make decisions throughout the day based on your blood glucose readings, which can help with managing diabetes. We consulted doctors and researched the most popular models to curate the best continuous glucose monitors on the market. Just be sure to talk to your doctor about diabetes monitor options to make a plan for the best health monitoring for you.

Best continuous glucose monitors of 2024

other perks.

This meter is recommended by Dr. Rebecca Fenichel, an endocrinologist at Westmed Medical Group, and was previously recommended by Dr. Nate Favini, medical lead of Forward. “For people who are interested in deeper insights into their glucose levels, I’ll often recommend the Freestyle Libre for continuous glucose monitoring,” Favini said.

“By placing a sensor on your arm, you can track your glucose constantly through the day and develop your understanding of what makes your sugar levels go up and down,” he said. “People will often be surprised that foods that they assumed were good for their glucose levels may be causing spikes in their sugar. Although continuous glucose monitors are more expensive, they can help you understand what types of food and exercise are best for you.” 

To read your blood sugar on the Freestyle Libre, you do a quick scan with the CGM device to get a reading. There are also optional alarms if your blood sugar gets too high or too low.

” page-position linktext linkurl like=”~ Affordable and easy to find ~ Optional blood sugar alarms ~ Connects to phone, but not required” dislike=”~ Stores only 8 hours of data (the Libre 3 stores up to 14 days of data) ” can-collapse=”true” can-truncate=”true” truncate-on-page-load=”true” offer techobjectinfo overridecredit=”Freestyle Libre” overridecaption=”

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Editor’s note, June 25, 2024: Since this list was first published, the Freestyle Libre 3 has launched. This sensor is smaller than the Libre 2 and has readings sent directly to your smartphone every minute, along with other perks.

This meter is recommended by Dr. Rebecca Fenichel, an endocrinologist at Westmed Medical Group, and was previously recommended by Dr. Nate Favini, medical lead of Forward. “For people who are interested in deeper insights into their glucose levels, I’ll often recommend the Freestyle Libre for continuous glucose monitoring,” Favini said.

“By placing a sensor on your arm, you can track your glucose constantly through the day and develop your understanding of what makes your sugar levels go up and down,” he said. “People will often be surprised that foods that they assumed were good for their glucose levels may be causing spikes in their sugar. Although continuous glucose monitors are more expensive, they can help you understand what types of food and exercise are best for you.” 

To read your blood sugar on the Freestyle Libre, you do a quick scan with the CGM device to get a reading. There are also optional alarms if your blood sugar gets too high or too low.

Freestyle Libre meter and sensor

Photo Gallery 1/1

launched the G7. This sensor is smaller than the G6 and has an improved alert system, along with a few other differences.

“I find continuous glucose monitoring to be a valuable tool in the management of both type 1 and 2 diabetes,” said Dr. Josh Emdur, medical director of SteadyMD. “CGM data provides actionable insight to help patients track their glycemic response to dietary choices and activity levels.”

The Dexcom G6 doesn’t require you to manually scan to get a glucose level reading; instead, you get a wireless reading either on a dedicated receiver device or to your phone or Apple Watch. The Dexcom G6 reads your blood sugar every 5 minutes, keeping track of your blood sugar level as long as you’re wearing it night and day. You can set a custom range for where you’d like your blood sugar to be, and if it goes into low blood sugar or high blood sugar ranges you set, you will get notified. 

“For patients on an insulin pump, the Dexcom G6 may connect with your pump and offer a closed-loop system to turn off your insulin if you are going low. The Dexcom monitor is also approved in pregnancy and offers continuous monitoring that you can see on your phone at all times,” Fenichel said.

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The Dexcom G6 is a wireless continuous glucose monitor that sends near constant readings via Bluetooth to a smartphone or watch app. Its readings are a few minutes behind, but its depth of data is like no finger stick.

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Editor’s note, June 25, 2024: Since this article was first published, Dexcom has launched the G7. This sensor is smaller than the G6 and has an improved alert system, along with a few other differences.

“I find continuous glucose monitoring to be a valuable tool in the management of both type 1 and 2 diabetes,” said Dr. Josh Emdur, medical director of SteadyMD. “CGM data provides actionable insight to help patients track their glycemic response to dietary choices and activity levels.”

The Dexcom G6 doesn’t require you to manually scan to get a glucose level reading; instead, you get a wireless reading either on a dedicated receiver device or to your phone or Apple Watch. The Dexcom G6 reads your blood sugar every 5 minutes, keeping track of your blood sugar level as long as you’re wearing it night and day. You can set a custom range for where you’d like your blood sugar to be, and if it goes into low blood sugar or high blood sugar ranges you set, you will get notified. 

“For patients on an insulin pump, the Dexcom G6 may connect with your pump and offer a closed-loop system to turn off your insulin if you are going low. The Dexcom monitor is also approved in pregnancy and offers continuous monitoring that you can see on your phone at all times,” Fenichel said.

When choosing continuous glucose monitors for this list, we look at which models were previously recommended by doctors. We also look to include a CGM that has a longer-lasting sensor life and include models that are popular choices for people with diabetes.

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“Continuous glucose monitors offer more intensive monitoring of a diabetic patient’s sugar levels,” Fenichel said. “They are particularly well suited to patients who have to check multiple times a day or to patients who want to get more frequent feedback during the day.”

While anyone can buy a regular blood glucose meter, you’ll need a prescription from your doctor for a CGM system. Doctors may recommend a continuous blood glucose monitoring device for reasons tied to your unique health circumstances and lifestyle, to track your glucose trends and keep on top of your insulin levels, but a CGM device may not work for everyone’s unique diabetes care plan.

CGM devices can also give you and your doctor more information about blood sugar levels than a standard meter — like if your blood sugar begins to drop too low, the device can warn you about your dropping blood glucose levels, “which can be a very helpful feature in helping patients avoid hypoglycemia,” Fenichel said. “They can tell you not only what your current sugar level is but also whether it is on the way up or on the way down.”

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Here are some things to take into account when shopping for continuous glucose monitors:

  • Scan frequency: Real-time CGMs continuously scan your glucose levels and automatically transmit the data to your phone or receiver, sending regular alerts about your blood sugar. By contrast, with intermittent-scan CGMs, you have to scan them with your phone or receiver to see the data. Some CGMs also measure your glucose more frequently than others.
  • Connectivity: Consider whether you want to connect the CGM to your smartphone or to a receiver. If you’re using a phone, look closely at the app and whether it’s easy to use or offers special features.
  • Test type: Consider where on your body the CGM’s sensor will be placed, how it’s inserted, and how often it will have to be replaced. 
  • Insurance coverage: Check whether the CGMs you’re interested in are covered by your insurance, and how much the parts will cost to maintain and replace over time.

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Can I get a continuous glucose monitor without a doctor?

No, continuous glucose monitors are available only by prescription, but you can get a regular glucose monitor without a doctor.

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Is continuous glucose monitoring covered by insurance?

Many insurance plans, including Medicaid and Medicare, will cover a continuous glucose monitor, although they may require prior authorization.

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Which CGM is the cheapest?

The Abbott Freestyle Libre 2 retails for just $110. The cheapest way to get a continuous glucose monitor is to go through your insurance, Medicaid or Medicare; you could potentially get one for free.

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