Dexcom's continuous glucose monitors (CGMs) have revolutionized diabetes management. The latest iteration, the G7, boasts improvements over its predecessor, the G6. A key difference many users wonder about is sensor lifespan. How long does the Dexcom G7 last compared to the G6? Let's dive into the details.
Dexcom G6 Sensor Lifespan
The Dexcom G6 sensor provides accurate glucose readings for 10 days. After this period, the sensor needs to be replaced. This 10-day lifespan was a significant improvement over earlier CGM technology and provided a good balance between accuracy and convenience.
Factors Affecting G6 Sensor Lifespan
While the Dexcom G6 is designed for a 10-day lifespan, several factors can influence its performance and potentially shorten its useful life:
- Sensor Insertion: Proper insertion is crucial. A poorly inserted sensor may not function correctly or may fail prematurely.
- Activity Level: Vigorous activity or impacts to the sensor site can affect sensor performance.
- Body Location: The placement of the sensor on the body can influence how long it lasts.
- Individual Variation: Individual metabolic factors can also affect sensor lifespan.
Dexcom G7 Sensor Lifespan
The Dexcom G7 represents a significant advancement, extending the sensor lifespan to 10 days, just like the G6. This might seem like no improvement at first glance, but the G7 boasts a much easier application process, leading to potentially better sensor adherence and a more consistent experience over the 10-day period.
G7 Improvements Despite Same Lifespan
While the lifespan remains the same, the G7 offers several advantages that indirectly improve the user experience over the 10 days:
- Simplified Application: The G7 applicator is significantly easier to use, minimizing the chances of improper insertion and associated issues. This leads to a more reliable sensor reading throughout the 10 days.
- Improved Accuracy: While not directly impacting lifespan, improved accuracy throughout the 10 days contributes to better diabetes management.
Dexcom G7 vs. G6: A Quick Comparison Table
Feature | Dexcom G6 | Dexcom G7 |
---|---|---|
Sensor Lifespan | 10 days | 10 days |
Application | Requires separate applicator | Integrated, easier applicator |
Transmitter | Reusable | Reusable |
Calibration | Requires occasional calibration | Typically requires no calibration |
Addressing Common Concerns
Q: Why doesn't the G7 have a longer lifespan than the G6?
A: While a longer lifespan would be beneficial, Dexcom likely prioritized ease of use and accuracy improvements in the G7. Extending lifespan beyond 10 days might compromise accuracy or require more complex technology.
Q: What should I do if my G7 sensor fails before 10 days?
A: Contact Dexcom customer support. They can help troubleshoot potential issues and may replace a malfunctioning sensor.
Conclusion: Choosing Between G6 and G7
Both the Dexcom G6 and G7 offer a 10-day sensor lifespan. However, the G7's improved application process makes it a more user-friendly option, leading to a potentially more reliable and consistent experience throughout those 10 days. Ultimately, the best choice depends on individual needs and preferences. Consider the ease of use improvements in the G7 when making your decision. Remember to always consult with your doctor or certified diabetes educator for personalized recommendations.