Understanding the Dexcom G6 Sensor

Smarter Glucose Tracking Without the Fingersticks

For many people managing diabetes, keeping track of blood sugar levels can feel like a full-time job. Frequent fingersticks and manual logs add to the stress. That’s where continuous glucose monitoring (CGM) systems like the Dexcom G6 come in—offering real-time insights and a more convenient way to stay informed about your glucose trends throughout the day.

How the Dexcom G6 Improves Diabetes Management

The Dexcom G6 provides continuous updates on your glucose levels—every five minutes—helping you understand how food, activity, stress, or sleep might affect your blood sugar. With better visibility, many users find it easier to avoid highs and lows and make adjustments with their care team.

The G6 system also allows for secure data sharing through the Dexcom app, so healthcare providers and loved ones can access real-time information to support more informed care decisions. This added support can make a big difference, especially for parents caring for children or caregivers supporting older adults.

What Is the Dexcom G6 CGM System?

The Dexcom G6 CGM system is made up of three main parts that work together to deliver continuous glucose data without routine fingersticks:

1. G6 Sensor: A small, wearable sensor placed on the skin that measures glucose levels just beneath the surface.
2. Dexcom Transmitter: Clips into the sensor and sends your glucose data wirelessly to a smart device.
3. Dexcom App: A mobile app that displays real-time glucose readings, trends, and alerts directly to your smartphone or smartwatch.

Key Features of the Dexcom G6

Real-Time Glucose Monitoring

The Dexcom G6 updates your glucose readings every five minutes. This can help you stay ahead of sudden changes and spot trends, such as post-meal spikes or overnight drops.

No Fingerstick Calibration

The G6 doesn’t require routine fingerstick calibrations, which simplifies daily diabetes care. However, if your symptoms don’t match the reading on the app, it’s important to use a traditional glucose meter and consult your provider.

Custom Alerts for Highs and Lows

You can customize alerts to warn you when your glucose is going too high or too low. This helps with early action—especially overnight or during exercise—when blood sugar changes might otherwise go unnoticed.

Water-Resistant Sensor

The Dexcom G6 sensor is water-resistant, so you can wear it while showering, swimming, or exercising without interrupting your data tracking.

Insulin Pump Compatibility

The G6 is compatible with select insulin pumps, enabling some users to benefit from automated insulin delivery in response to real-time glucose changes. If you’re using or considering an insulin pump, ask your provider if it supports G6 integration.

Data Sharing with the Dexcom Follow App

The Dexcom Follow App allows you to share your data in real time with family, friends, or caregivers. This can be especially helpful for children, teens, or older adults who may need additional monitoring or assistance.

Works with Smart Devices

Glucose readings, alerts, and trend graphs can be viewed directly on compatible smartphones and smartwatches, so you don’t need a separate receiver to stay informed.

Is the Dexcom G6 Right for You?

The Dexcom G6 may be helpful for people with Type 1 or Type 2 diabetes who need frequent glucose monitoring. Its user-friendly design, automatic readings, and alert system can help make daily diabetes care more manageable. As always, your healthcare provider can help determine if it’s the right option for your specific needs.

How St. Joseph Medical Can Help

At St. Joseph Medical, we help patients access CGM systems like the Dexcom G6 through Medicare, Medicaid, and most insurance plans. Our team works directly with you and your doctor to streamline the approval and delivery process—so you can focus on living well with diabetes.