Which CGM Suits Your Activity Better? Dexcom vs. FreeStyle Libre

For individuals managing Type 1 diabetes, choosing the right continuous glucose monitor (CGM) is essential for maintaining stable blood sugar levels while leading an active lifestyle. Two of the most popular CGMs on the market are the Dexcom and FreeStyle Libre systems. Each has its unique advantages and may suit different activity levels and lifestyles. Below is a comparison to help you determine which one is the best fit for your needs.

Accuracy and Data Transmission

• DEXCOM G7 : Provides real-time glucose readings every five minutes and transmits data continuously to a smartphone or receiver. Its advanced algorithm ensures high accuracy, making it a preferred choice for individuals needing precise glucose control.
• FREESTYLE LIBRE 3 : Offers real-time glucose readings as well, but previous versions (Libre 2 and earlier) required users to scan the sensor manually to obtain data. While the Libre 3 improves upon this, Dexcom is still often regarded as slightly more accurate for detecting rapid glucose fluctuations.

Sensor Wear Time and Placement

• DEXCOM G7: The sensor lasts for 10 days and is worn on the upper arm, abdomen, or back (for children). It features an easy insertion process.
• FREESTYLE LIBRE 3: The sensor lasts 14 days, providing a longer wear time compared to Dexcom. However, the sensor is typically placed only on the back of the upper arm.

Real-Time Alerts and Customization

• DEXCOM G7: Offers customizable high and low glucose alerts, predictive alerts, and urgent alarms. This feature is beneficial for athletes, individuals with hypoglycemia unawareness, and those managing fluctuating glucose levels.
• FREESTYLE LIBRE 3: Now includes optional real-time glucose alarms, a feature previously unavailable in earlier models. However, the alert system is not as customizable as Dexcom’s.

Ease of Use and App Integration

• DEXCOM G7: Connects seamlessly with multiple diabetes management apps, insulin pumps, and smart devices. The user-friendly app displays glucose trends and allows data sharing with healthcare providers and caregivers.
• FREESTYLE LIBRE 3: Also integrates with mobile devices and apps but has limited integration with insulin pumps compared to Dexcom.

Cost and Insurance Coverage

• DEXCOM G7: Typically more expensive than FreeStyle Libre, both in sensor and transmitter costs. However, it is widely covered by insurance, including Medicare for eligible users.
• FREESTYLE LIBRE 3: Generally more affordable, making it a budget-friendly option. It is also covered by many insurance plans, but availability and coverage levels may vary.

Which One Should You Choose?

• For active individuals, athletes, or those needing real-time alerts: Dexcom G7 is a better choice due to its accuracy, predictive alerts, and seamless data integration.

• For users looking for affordability and longer wear time: FreeStyle Libre 3 offers a cost-effective and convenient option with real-time readings.

Final Verdict

Both Dexcom and FreeStyle Libre provide excellent CGM options for managing Type 1 diabetes. The decision ultimately depends on your lifestyle, activity level, and budget. If you require high accuracy, predictive alerts, and integration with insulin pumps, Dexcom G7 may be the best choice. If you prioritize affordability, long wear time, and simplicity, FreeStyle Libre 3 is a solid option.

Consulting with your healthcare provider can help determine which CGM best fits your individual needs and diabetes management plan.

If you're interested in exploring more about Blood Sugar Level Management, check out these other popular articles :

• Feeling Low? 8 Essential Tips for Handling Hypoglycemia
• What you need to know about Low Blood Glucose
• Understanding Hypoglycemia
• Newly Diagnosed with T1D? Here's the advice Everyone Whishes they got from the start

For more insights and resources, visit our blog.

Disclaimer: This blog is not a substitute for professional medical advice, diagnosis, or treatment. Always consult your doctor or a qualified health provider with any questions about your condition. If you have a medical emergency, call 911 (US) or 000 (Australia) immediately, or visit your nearest emergency care center.