The world's most accurate CGM system with predictive alerts, 10-day wear time, and direct Apple Watch connectivity for superior diabetes management.
Experience the most accurate and innovative continuous glucose monitoring
Industry-leading accuracy with 9.1% MARD (Mean Absolute Relative Difference) for reliable glucose readings you can trust for treatment decisions.
Advanced predictive technology provides alerts up to 20 minutes before reaching high or low glucose levels, giving you time to take action.
First and only CGM to connect directly to Apple Watch without needing your phone nearby. View glucose readings and receive alerts on your wrist.
Seamless connectivity with the Dexcom G7 app for comprehensive glucose tracking, data sharing, and integration with diabetes management apps.
Simple, accurate, and innovative continuous glucose monitoring
Apply the small, discreet sensor to your arm or abdomen using the simple one-button applicator.
Pair the sensor with your smartphone using the Dexcom G7 app to begin monitoring.
Track real-time glucose readings with predictive alerts 20 minutes before highs or lows.
Share your glucose data with healthcare providers and family through Dexcom Follow app.
Comprehensive technical details and specifications
| Sensor Duration: | Up to 10 days |
| Age Range: | 2 years and older |
| Measurement Range: | 40–400 mg/dL |
| Reading Frequency: | Every minute |
| Waterproof: | Up to 2.4 meters for 24 hours |
| Size: | 32mm diameter × 10.7mm height |
| Connectivity: | Bluetooth Low Energy |
| App Compatibility: | Dexcom G7, Apple Watch |
| Data Storage: | 24 hours on sensor |
| Alarms: | Predictive + urgent alerts |
| Sharing: | Dexcom Follow app |
| Accuracy: | MARD 9.1% overall |
| Medicare Coverage: | Yes, with criteria |
| Commercial Insurance: | Most plans covered |
| Prior Authorization: | May be required |
| Prescription Required: | Yes |
| NDC Number: | 08627-0001-01 |
| Availability: | Pharmacies & DME suppliers |
Innovative capabilities that set Dexcom G7 apart
9.1% MARD accuracy with consistent performance throughout 10-day wear period.
Advanced algorithms provide 20-minute early warnings before glucose highs or lows.
First CGM to connect directly to Apple Watch without requiring your phone nearby.
Waterproof up to 2.4 meters for 24 hours - swim, shower, and exercise freely.
30-minute warm-up time - fastest in the industry for immediate glucose readings.
Share glucose data in real-time with up to 10 followers via Dexcom Follow app.
Common questions about Dexcom G7
Need help with your CGM system? Our diabetes specialists are ready to assist with device setup, troubleshooting, insurance coverage, and ongoing diabetes management support.