| Sensor Warm-Up Time | 30 minutes |
| Sensor Wear Duration | 10 days |
| Reading Frequency | Every 5 minutes |
| iOS Requirement | iOS 15 or later |
| Android Requirement | Android 8.0 or later |
| Max Followers | 10 via Dexcom Follow |
| Calibration | Factory-calibrated, optional fingerstick |
| Grace Period | 12-hour session extension |
Key Takeaways
- The Dexcom G7 app works on iOS and Android for real-time CGM data
- Setup takes under 30 minutes including sensor warm-up (30 min vs G6's 2 hours)
- Supports up to 10 followers via Dexcom Follow app
- Integrates with Apple Health, Google Fit, and insulin pumps
- Customizable glucose alerts help prevent hypo and hyperglycemic events
What Is the Dexcom G7 App?
The Dexcom G7 app is the companion smartphone application for the Dexcom G7 Continuous Glucose Monitor (CGM). It displays real-time glucose readings every 5 minutes, trend arrows, and historical data β replacing the need for a separate receiver in most cases. The app is FDA-cleared and available for iPhone (iOS 15+) and Android (8.0+).
System Requirements
| Platform | Minimum Version |
|---|---|
| iPhone | iOS 15 or later |
| Android | Android 8.0 (Oreo) or later |
| Bluetooth | Bluetooth 4.2+ required |
| Sensor warm-up | 30 minutes |
| Sensor wear duration | 10 days |
Step-by-Step Setup Guide
1. Download and Create an Account
Download the Dexcom G7 app from the App Store or Google Play. Create or log into your Dexcom account. Enable Bluetooth and location permissions when prompted β these are required for sensor pairing.
2. Insert the Sensor
Apply the G7 sensor-transmitter (now a single combined unit) to the back of your upper arm. Press firmly until you hear a click. The G7 applicator is 60% smaller than the G6, making insertion less intimidating.
3. Pair with Your Phone
Open the app and select 'Pair New Sensor.' The app will detect your sensor automatically via Bluetooth. A 30-minute warm-up period begins β the shortest of any Dexcom system to date.
4. Calibrate if Needed
The G7 is factory-calibrated and does not require routine fingerstick calibrations, though optional calibration is available if readings seem inaccurate.
Key App Features
Real-Time Glucose Display
The home screen shows your current glucose value, a trend arrow indicating direction and speed of change, and a 3-hour or 24-hour graph. Readings update every 5 minutes continuously.
Customizable Alerts
Set personalized high and low glucose alerts, urgent low alerts (fixed at 55 mg/dL), and signal loss notifications. The app also offers a 'Quiet Mode' to silence non-urgent alerts during sleep or meetings.
Dexcom Follow Integration
Share your glucose data with up to 10 followers (caregivers, family) via the free Dexcom Follow app. Followers receive the same real-time readings and alerts on their own devices.
Data Reports and Trends
The app generates Ambulatory Glucose Profile (AGP) reports, time-in-range statistics, and average glucose summaries. Data syncs automatically to Dexcom Clarity for deeper analysis.
Device Integrations
- Apple Watch: View glucose readings directly on your watch face
- Apple Health / Google Fit: Automatic data syncing
- Tandem t:slim X2 pump: Direct integration for automated insulin delivery
- Omnipod 5: Compatible for closed-loop insulin delivery
G7 vs G6 App Comparison
| Feature | G7 App | G6 App |
|---|---|---|
| Warm-up time | 30 min | 2 hours |
| Sensor life | 10 days | 10 days |
| Grace period | 12 hours | None |
| Transmitter | Built-in | Separate |
Recommended Products
To get the most from your Dexcom G7, explore MDS Diabetes's full range of CGM sensors, adhesive patches, and diabetes management accessories β all selected to complement your CGM experience and extend sensor wear.