Dexcom G6 vs G7: Key Differences and Similarities Explained

Dexcom G6 vs G7: Key Differences and Similarities Explained

If you're living with diabetes, you may be familiar with the Dexcom G6 continuous glucose monitoring system. But what about the newer Dexcom G7? In this article, we'll explore the differences between the two devices, including their features and benefits, to help you decide which one is right for you.

Introduction to Dexcom G6 and G7

The Dexcom G6 and G7 are both continuous glucose monitoring systems designed to help people with diabetes manage their blood sugar levels. The G6 was released in 2018 and quickly became a popular choice among people with diabetes due to its accuracy, ease of use, and convenience. The G7 was released to the US market in 2023 and promises to build on the success of the G6 with new features and improvements. Let's take a closer look at the similarities and differences between these two devices.


Dexcom G6 Sensor: Enhanced Accuracy and Convenience

The Dexcom G6 has been a game-changer for many individuals managing their diabetes. It consists of a small sensor worn on the body that continuously measures glucose levels and transmits the data wirelessly to a compatible receiver or smart device. Here are some key features and benefits of the Dexcom G6:

  1. Enhanced Accuracy: The G6 sensor offers exceptional accuracy, with a MARD (Mean Absolute Relative Difference) rating of 9.0% - the lowest among current CGM systems. This means you can rely on the G6 for precise glucose readings, helping you make more informed decisions about your diabetes management.

  2. Easy Application: Applying the G6 sensor is quick and straightforward. The auto-applicator makes insertion virtually painless, and the sensor can be worn for up to 10 days, providing continuous glucose monitoring without the need for fingerstick calibrations.

  3. Customizable Alerts: The G6 system allows you to set personalized alerts for high or low glucose levels. This feature helps you stay proactive in managing your condition, giving you peace of mind and reducing the risk of dangerous glucose fluctuations.

Dexcom G7 Sensor: Compact Design and Streamlined Experience

Building upon the success of the G6, Dexcom introduces the Dexcom G7, promising an even better user experience. Here's what sets the G7 apart:

  1. Ultra-Compact Design: The G7 sensor is approximately 60% smaller than the G6 sensor, making it more discreet and comfortable to wear. Its low-profile design ensures minimal interference with your daily activities.

  2. Extended Wear: Dexcom G7 takes convenience to the next level with an extended wear duration of up to 14 days. This means fewer sensor changes and a reduced impact on your daily routine.

  3. Simplified Sensor Insertion: The G7 sensor features an upgraded insertion process. With the one-button auto-applicator, applying the sensor becomes even more effortless, allowing for a hassle-free experience.

Side-by-Side Comparison of the Dexcom G6 and the G7

To help you compare the Dexcom G6 and G7 systems more easily, here's a side-by-side comparison of their key features:

Feature Dexcom G6 Dexcom G7
Accuracy MARD of 9.0% MARD of 8.2%
Sensor Size Standard
4.2 x 2.5 x 0.6in
Approximately 60% smaller
1.1 x 0.9 x 0.2in
Sensor Wear Duration Up to 10 days Up to 12 days
Insertion Process Auto-applicator Upgraded one-button auto-applicator
Wear Location Abdomen
Upper buttocks (children only 2-17 years)
Back of arm
Upper buttocks (children only 2-6 years)
Warm-Up Time 2 hours 30 minutes
Readings Automatically reads every 5 minutes Automatically reads every 5 minutes
Sensor & Transmitter Insertion Separate Integrated
Integrations Tandem t:slim x 2, Omnipod 5 Tandem t:slim, Omnipod 5 and SmartPens
Applications Dexcom App for Readings & Dexcom Clarity App for Generating Reports Dexcom and Clarity apps will integrate their information into 1 application


Please note that Dexcom is continuously improving its products, and certain features of the G7 may evolve over time.


Both the Dexcom G6 and G7 CGM systems offer remarkable advancements in diabetes management. While the G6 is known for its accuracy and ease of use, the G7 takes it a step further with a more compact design and extended wear duration. Ultimately, the choice between the Dexcom G6 and G7 depends on your personal preferences and priorities.

If you're looking to purchase Dexcom products, including the G6 and G7 sensors, be sure to visit Prestige Medical Supply ( They offer a wide range of diabetic medical supplies, and you can enjoy a 10% discount on all Dexcom products when you order through their website.

Remember, always consult with your healthcare provider to determine which CGM system is best suited for your individual needs. Embracing the latest technology like Dexcom G6 or G7 can empower you to take control of your diabetes and live a healthier, more active life.

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