Top 5 CGM Devices: Your Essential Buying Guide

Imagine a world where you don’t have to guess your blood sugar levels. No more painful finger pricks throughout the day! For many people managing diabetes, this dream is now a reality thanks to Continuous Glucose Monitors, or CGMs. These amazing devices give you a constant picture of your glucose, helping you understand your body better.

But let’s be honest, picking the right CGM can feel like a puzzle. There are so many different brands, features, and things to consider. You might wonder: Which one is best for me? How do they actually work? It’s easy to feel overwhelmed and unsure where to start. That’s where this guide comes in!

We’re going to break down everything you need to know about CGMs. You’ll learn about the different types available, what makes them special, and how to choose the one that fits your lifestyle. By the end of this post, you’ll feel confident and ready to take the next step in managing your diabetes with a CGM. Let’s dive in and discover how these devices can make a real difference in your life!

Our Top 5 Continuous Glucose Monitor Recommendations at a Glance

Top 5 Continuous Glucose Monitor Detailed Reviews

1. Stelo Glucose Biosensor & App by Dexcom – A Leader in Continuous Glucose Monitoring (CGM). 24/7 Tracking & Personalized Insights to Reveal Patterns. 2-Pack (Up to 15 Days Each). iOS & Android.

Stelo Glucose Biosensor & App by Dexcom - A Leader in Continuous Glucose Monitoring (CGM). 24/7 Tracking & Personalized Insights to Reveal Patterns. 2-Pack (Up to 15 Days Each). iOS & Android.

Rating: 9.5/10

The Stelo Glucose Biosensor & App by Dexcom is a cutting-edge continuous glucose monitoring (CGM) system designed for individuals aged 18 and older who are not using insulin. It offers round-the-clock glucose tracking and provides personalized insights to help you understand your body’s patterns. This 2-pack provides up to 30 days of monitoring, and it works seamlessly with both iOS and Android devices.

What We Like:

  • The Stelo biosensor is the most accurate glucose sensor available without a prescription.
  • You get up to 15 days of wear time from each sensor, with a 12-hour grace period.
  • It’s fully waterproof up to 8 feet, so you can live your life without worry.
  • You can access 180 days of glucose history in the app, helping you spot trends.
  • The app offers personalized insights to show how food, activity, and sleep affect your glucose.
  • It logs activity and smart food, and syncs with popular health apps like Apple Health and Google Health Connect.
  • Dexcom stands behind their product with a commitment to replace any biosensor that fails before its 15-day wear time.
  • Stelo offers 24/7 virtual support through SteloBot and live agent support during business hours.

What Could Be Improved:

  • This product is specifically for people NOT using insulin; it’s not suitable for those on insulin, dialysis, or with problematic hypoglycemia.
  • Availability is currently limited to the US.

This advanced CGM system empowers you to take control of your glucose health with its accuracy and user-friendly features. It’s a great tool for non-insulin users seeking to understand their body better.

2. Lingo Continuous Glucose Monitor (CGM) & App. Made by Abbott. Know the impact of what you eat. 1 Lingo biosensor lasts up to 14 Days*. Designed for iPhone 11 device or Later. US Only.

Lingo Continuous Glucose Monitor (CGM) & App. Made by Abbott. Know the impact of what you eat. 1 Lingo biosensor lasts up to 14 Days*. Designed for iPhone 11 device or Later. US Only.

Rating: 9.1/10

The Lingo Continuous Glucose Monitor (CGM) and app, by Abbott, helps you understand how your food, exercise, sleep, and daily life affect your glucose levels. This small wearable sensor attaches to your arm and sends your glucose data straight to your iPhone 11 or newer, giving you a real-time picture of what’s happening inside your body. It’s designed for easy, everyday wear and lasts up to 14 days on a single sensor, with no charging needed. Lingo builds on Abbott’s proven technology, used by millions worldwide.

What We Like:

  • Provides 24/7 minute-by-minute glucose tracking.
  • Helps you make healthier choices by showing how your lifestyle impacts glucose.
  • Comfortable and water-resistant design for daily wear.
  • Sensor lasts up to 14 days and requires no charging.
  • Offers free replacement if the sensor stops working early.
  • Can sync with Apple Health for a combined view of your wellness data.

What Could Be Improved:

  • Only available for use with iPhone 11 devices or later.
  • Currently limited to US customers only.

The Lingo CGM offers valuable insights into your glucose health, empowering you to build better habits. Its ease of use and continuous tracking make understanding your body’s responses simpler than ever.

3. Lingo Continuous Glucose Monitor (CGM) & App (Pack of 2). Made by Abbott. Know the impact of what you eat. 1 Lingo biosensor lasts up to 14 Days*. Designed for iPhone 11 device or Later. US Only.

Lingo Continuous Glucose Monitor (CGM) & App (Pack of 2). Made by Abbott. Know the impact of what you eat. 1 Lingo biosensor lasts up to 14 Days*. Designed for iPhone 11 device or Later. US Only.

Rating: 8.7/10

The Lingo Continuous Glucose Monitor (CGM) & App (Pack of 2) by Abbott is your new partner for understanding how your body responds to food, exercise, and sleep. This system helps you see your glucose levels in real-time, giving you the power to make smarter choices for a healthier you. It’s designed for iPhone 11 or newer and is available in the US.

What We Like:

  • It gives you a 24/7, minute-by-minute view of your glucose levels, helping you learn what works best for your body.
  • The Lingo Biosensor is small, comfortable, and water-resistant, making it easy to wear every day for up to 14 days on a single sensor.
  • It’s built on Abbott’s trusted technology, used by millions worldwide.
  • You get two biosensors for up to four weeks of tracking, plus full access to the Lingo app.
  • Lingo offers a free replacement if your biosensor stops working before its 14-day period.
  • It can sync with Apple Health to automatically log workouts and show your glucose data.

What Could Be Improved:

  • The product is currently only available for use in the US.
  • It requires an iPhone 11 device or later to work.

With Lingo, you gain valuable insights into your glucose health to help you build better habits. Take control of your well-being with this easy-to-use continuous glucose monitoring system.

4. Dexcom Stelo Continuous glucose monitoring device 2 pack

Dexcom Stelo Continuous glucose monitoring device 2 pack, Gray

Rating: 9.1/10

Take control of your diabetes management with the Dexcom Stelo Continuous Glucose Monitoring (CGM) device. This 2-pack in a stylish gray color offers a simple and effective way to track your glucose levels. The Stelo Glucose Biosensor System is designed for everyday use, giving you insights into your body’s glucose trends without constant fingersticks.

What We Like:

  • Easy to Use: The Stelo system is straightforward to set up and wear, making glucose monitoring less of a chore.
  • Convenient 2-Pack: Having two sensors ensures you have a backup ready, so you don’t miss a single reading.
  • Informative Data: It provides valuable information about your glucose levels, helping you make informed decisions about food, exercise, and medication.
  • Discreet Design: The gray color is subtle and blends in well, so you can wear it confidently.

What Could Be Improved:

  • Sensor Lifespan: While it offers convenience, the sensor’s wear time could be longer for some users.
  • App Integration: Future updates could offer more advanced app features or wider compatibility with other health platforms.

The Dexcom Stelo CGM system is a valuable tool for anyone looking for a simpler way to monitor their glucose. It empowers you with knowledge to better manage your diabetes journey.

5. Stelo 1 pack

Stelo 1 pack

Rating: 9.4/10

The Stelo 1 pack offers a 15-day continuous glucose monitoring (CGM) solution. It’s designed to help you understand your glucose levels over time. This makes managing your health a bit easier. The pack contains everything you need for those 15 days of monitoring.

What We Like:

  • Provides 15 days of continuous glucose readings.
  • Helps you track trends in your glucose levels.
  • Simple to apply and use for daily life.
  • Offers valuable insights into your body’s response to food and activity.
  • The 15-day wear time is convenient for many users.

What Could Be Improved:

  • The sensor can sometimes be a bit sensitive to accidental bumps.
  • Data access might require a specific app or reader, which could be an extra step.
  • Some users might prefer longer wear times than 15 days.
  • The initial setup instructions could be clearer for first-time users.

The Stelo 1 pack is a solid option for those looking for a straightforward 15-day CGM. It gives you a good snapshot of your glucose patterns.

Your Guide to Choosing a Continuous Glucose Monitor

A Continuous Glucose Monitor (CGM) is a small device that tracks your glucose levels throughout the day and night. It helps you understand how your body responds to food, exercise, and medication. This guide will help you pick the best CGM for your needs.

Key Features to Look For

When you shop for a CGM, check these important features:

  • Accuracy: This is the most crucial feature. A good CGM should give you readings that are very close to what a fingerstick blood glucose meter shows. Look for devices with a Mean Absolute Relative Difference (MARD) of 10% or less. A lower MARD means better accuracy.
  • Sensor Life: CGMs use a small sensor inserted under your skin. This sensor lasts for a certain period. Most sensors work for 7 to 14 days. Longer sensor life means you change it less often.
  • Connectivity: How does the CGM share your data? Many connect to your smartphone via Bluetooth. Some also connect to a separate receiver or smartwatch. Easy data sharing helps you and your doctor stay informed.
  • Alarms and Alerts: CGMs can warn you if your glucose is too high or too low. These alarms are very important for safety. Some devices let you customize these alerts.
  • Wearability and Comfort: The sensor is worn on your body. It should be comfortable and not irritate your skin. Look for discreet designs that you can wear under clothing.
  • Data Reporting: The CGM app or receiver shows your glucose trends. This includes graphs and reports. Good reports help you see patterns and make informed decisions.

Important Materials

CGMs have a few main parts:

  • Sensor: This is a tiny filament inserted just under the skin. It’s usually made of a flexible material like plastic. The sensor measures glucose in the fluid between cells.
  • Transmitter: This small device attaches to the sensor. It sends your glucose readings wirelessly. Transmitters are typically made of plastic.
  • Reader or Smartphone App: This is what you use to see your glucose data. It can be a dedicated device or an app on your phone.

Factors That Improve or Reduce Quality

Several things affect how good a CGM is:

  • Ease of Insertion: Some sensors are easier to put in than others. A smooth insertion process makes using the CGM less painful.
  • Adhesive Quality: The patch that holds the sensor and transmitter needs to stick well. Good adhesive means the device stays on during daily activities, like showering or exercising. Poor adhesive can cause the sensor to fall off.
  • App Usability: A well-designed app makes it easy to view your data and understand your trends. A confusing app can make the CGM frustrating to use.
  • Calibration Needs: Some CGMs require fingerstick calibrations. Others do not. No-calibration CGMs are often more convenient.
  • Water Resistance: You want a CGM that can handle sweat and water. This allows you to swim or exercise without worry.

User Experience and Use Cases

CGMs are great for many people, especially those with diabetes.

  • People with Type 1 Diabetes: These individuals rely on CGMs to manage their insulin doses and avoid dangerous highs and lows.
  • People with Type 2 Diabetes: CGMs help them understand how lifestyle changes affect their glucose levels. This can motivate them to eat healthier and exercise more.
  • Individuals with Gestational Diabetes: CGMs provide real-time feedback to manage blood sugar during pregnancy.
  • Athletes and Fitness Enthusiasts: Some people use CGMs to see how exercise impacts their energy levels and performance.

Using a CGM means you get a constant stream of information. This helps you make better choices about your diet and activity. It gives you peace of mind knowing you can catch problems before they become serious.


Frequently Asked Questions (FAQ)
Q: What is a Continuous Glucose Monitor (CGM)?

A: A CGM is a device that tracks your glucose levels all the time. It sends the information to a reader or your smartphone.

Q: How accurate are CGMs?

A: Modern CGMs are very accurate. They are usually within 10% of a fingerstick test. Always check the MARD rating.

Q: How long does a CGM sensor last?

A: Most CGM sensors last for 7 to 14 days. After that, you need to replace it.

Q: Do I still need to prick my finger if I use a CGM?

A: Some CGMs need fingerstick calibration. Others do not. Check the product details.

Q: Can I wear a CGM while swimming or exercising?

A: Most CGMs are water-resistant. They can handle sweat and being submerged in water for a short time.

Q: How is a CGM different from a regular glucose meter?

A: A regular meter only checks your glucose at one moment. A CGM checks it all day and night, showing trends.

Q: Are there any side effects to wearing a CGM?

A: Some people may have skin irritation from the adhesive. This is usually mild and goes away.

Q: How do I know if my glucose is too high or too low with a CGM?

A: CGMs have alarms. They will alert you if your glucose levels go outside your set range.

Q: Can my doctor see my CGM data?

A: Yes, most CGMs allow you to share your data with your doctor or caregivers.

Q: Is a CGM covered by insurance?

A: Insurance coverage varies. Many insurance plans cover CGMs, especially for people with diabetes.

In conclusion, every product has unique features and benefits. We hope this review helps you decide if it meets your needs. An informed choice ensures the best experience.

If you have any questions or feedback, please share them in the comments. Your input helps everyone. Thank you for reading.

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