Dexcom CGM Explained
New Trends tab: Easily explore your glucose data like never before
Published: Sep. 18, 2026
5 min read
The content in this article should not be taken as medical advice. Please consult with your healthcare provider regarding your individual health needs.
If you use a Dexcom G7 Continuous Glucose Monitoring (CGM) System, you already know how helpful it is to see your glucose readings in real time. But understanding the bigger picture—your patterns and trends (like time in range)—can make a big difference in managing your diabetes day to day. That’s where the new Trends tab in the Dexcom G7 app comes in.
The Trends tab organizes your glucose data in one simple hub, giving you easier access to even more information you can use to guide daily decisions and have informed discussions with your doctor at appointments.
What is the Trends tab?
Think of it as your personal dashboard for managing your glucose. If you’ve been a Dexcom CGM user for a while, you’ve probably switched between the Dexcom Clarity and Dexcom G7 apps to see all your data. Now with the Trends tab, it’s all in one place—no extra logins, no app hopping, just quick access to the numbers that matter most. And this is just the start! Future updates will include even more data.
What data can you find in the Trends tab?
The Trends tab consolidates and organizes important information you need to understand your glucose patterns. It’s broken out into two views:
- Overview
- Daily
Overview: A summary view of all key glucose metrics across 3, 7, 14, 30, or 90 days.
- Time in range: The percentage of time that glucose levels are in low, target, and high ranges. Time in range is one of the most important metrics for daily management of diabetes. Time in range can be viewed in both:
- Default: 70-180 mg/dL
- Custom: A target range you set based on your personal preferences.
- Average glucose: A measurement of your average glucose levels over the selected timeframe.
- Average Day graph: Compresses all the days within the timeframe selected into a single 24-hour day to highlight your glucose averages and patterns.
- GMI (Glucose Management Indicator): An estimate of your A1C based on your CGM data that you and your doctor can use to make more informed decisions.
- Sensor Usage: The percentage of time your sensor captured glucose data.
- Logged insulin doses: Review your logged insulin doses, making it easier to spot patterns that you can share with your doctor during appointments.
- Post-Meal Glucose: The number of times you logged a meal and the percentage of meals logged that fall within the selected post-meal glucose target are displayed.
- Fasting Glucose: The percentage of logged fasting glucose events that fall within your set target, your average fasting glucose level, and the number of fasting glucose events logged are displayed.
- Glucose Variability: Glucose variability is how much your glucose changes over time. The Coefficient of Variation (%CV) is a way to measure this variability. A lower %CV means that glucose levels are more stable and closer to average glucose.
Daily views
- The Daily report contains Time in Range, Sensor Usage, Average Glucose, Glucose Variability, glucose trend graph, and all logged events for an individual day.
- You can review individual days as far back as 180 days.
All of this is presented in a clear, intuitive format so you can focus on what matters most: living your life with confidence and control.
Why you'll love the Trends tab
- Easy to use and understand: It's designed for simplicity. No extra steps, no complicated navigation—just a quick tap to see a clear summary of all your most important glucose data.
- More convenient: It puts everything in one place. Now it’s easier to review your progress without juggling multiple apps, so you can stay on top of your glucose patterns and prepare for appointments.
- Helpful at doctor's appointments: With more glucose data easily accessible in one place, sharing insights with your healthcare provider is simple. Now you can quickly pull up a complete picture of your glucose trends, time in range, and insulin events during your appointment and have more productive conversations.
Ready to try it out?
Update your Dexcom G7 app to version 2.15
If you haven’t already, head to the App Store or Google Play and update the app to take advantage of your new all-in-one glucose data hub.
If you haven’t already, head to the App Store or Google Play and update the app to take advantage of your new all-in-one glucose data hub.
Get started on Dexcom G7 15 Day
Not using Dexcom G7 15 Day yet? Now is the perfect time to get started, and it's conveniently available at the pharmacy.
Not using Dexcom G7 15 Day yet? Now is the perfect time to get started, and it's conveniently available at the pharmacy.
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BRIEF SAFETY STATEMENT: Failure to use the Dexcom Continuous Glucose Monitoring System and its components according to the instructions for use provided with your device and available at https://www.dexcom.com/safety-information and to properly consider all indications, contraindications, warnings, precautions, and cautions in those instructions for use may result in you missing a severe hypoglycemia (low blood glucose) or hyperglycemia (high blood glucose) occurrence and/or making a treatment decision that may result in injury. If your glucose alerts and readings from the Dexcom CGM do not match symptoms, use a blood glucose meter to make diabetes treatment decisions. Seek medical advice and attention when appropriate, including for any medical emergency.
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