The Dexcom CGM difference
Dexcom CGM Systems give you a full picture of your glucose numbers and trends to help you better manage your diabetes, so you can live a healthier, more confident life.
Real-time glucose readings
No fingersticks*. No scanning.
*Fingersticks required for diabetes treatment decisions if symptoms or expectations do not match readings.
Exceptional accuracy1
Better informed treatment decisions.‡
Intuitive features
Customizable alerts.
Proven results
Lower A1C. More time-in-range.2-6
The world's most powerful CGM systems,7 from the #1 recommended CGM brand8,9
Dexcom G7
Dexcom G7 15 Day
Dexcom G7 Sensor | Dexcom G7 15 Day Sensor |
10-day wear time | 15-day wear time |
Small sensor | Small sensor |
Size W: 1.07" x L: 0.94" | Size W: 1.07" x L: 0.94" |
All-in-one sensor and transmitter | All-in-one sensor and transmitter |
30-minute warmup | 60-minute warmup |
12-hour grace period | 12-hour grace period |
Ages 2+ for all types of diabetes (T1, T2, Gestational) | Ages 18+ for all types of diabetes (T1, T2, Gestational) |
Waterproof 2.4m - up to 24 hours | Water resistance 2.4m - up to 24 hours |
Alerts | Alerts |
Customizable sound and volume | Customizable sound and volume |
High and Low alerts | High and Low alerts |
Urgent Low alert | Urgent Low alert |
Urgent Low soon | Urgent Low soon |
Delay 1st alert | Delay 1st alert |
Alert schedule | Alert schedule |
Dexcom G7 App | Dexcom G7 App |
Follow app§ - circle of support (up to 10) | Follow app§ - circle of support (up to 10) |
Clarity app - connect with healthcare professionals | Clarity app - connect with healthcare professionals |
Wear Location | Wear Location |
Back of upper arm | Back of upper arm |
Upper buttocks (children only 2-6 years) | - |
Connectivity | Connectivity |
Smartphone iOS and Android* | Smartphone iOS and Android* |
Direct to Apple Watch¶ or Standard Watch Mode** | Direct to Apple Watch¶ or Standard Watch Mode** |
Dexcom G7 Receiver | Dexcom G7 Receiver |
Connects to a growing ecosystem of Digital Health apps | Connects to a growing ecosystem of Digital Health apps |
Connects as part of an AID system|| | Connects as part of an AID system|| |
* For a list of compatible devices, visit www.Dexcom.com/compatibility **Compatible Device required for CGM data on smartwatch. ¶Compatible smartphone is required to pair a new Dexcom G7 sensor with a compatible Apple Watch. To use Share/Follow the smartphone must be within 33 feet of the Dexcom G7.
Dexcom health apps and connectivity
Take the next step
Joining the Dexcom family is easy. Simply click the link below to get started.
*Smart devices sold separately. For a list of compatible devices, visit dexcom.com/compatibility. ‡ Discuss with your HCP on how to use CGM information to manage diabetes. § Separate Follow app and internet connection required. Users should always confirm readings on the Dexcom G7 app or receiver before making treatment decisions. ‖ To learn more about insulin pump integrations and compatibility with Dexcom CGM systems, visit dexcom.com/integrate. G7 and G7 15 Day are compatible with a selection of insulin pumps. ¶ Compatible smartphone is required to pair a new Dexcom G7 sensor with a compatible Apple Watch. To use Share/Follow the smartphone must be within 33 feet of the Dexcom G7. ** Compatible device required for CGM data on smartwatch.
1 Dexcom, data on file, 2025. 2 Beck, RW, et al. JAMA. 2017;317(4):371-378. 3 Beck RW, et al. Ann Intern Med. 2017;167(6):365-374. 4 Martens T, et al. JAMA. 2021;325(22):2262-2272. 5 Garg SK, et al. Diabetes Technol Ther. 2025;27(6):413-502. 6 Welsh JB, et al. J Diabetes Sci Technol. 2024;18(1):143-7. 7 Dexcom, Data on File, 2025. 8 Seagrove Patient Survey 2024. 9 Seagrove HCP Survey Q3 2024.
BRIEF SAFETY STATEMENT Failure to use the Dexcom G7 Continuous Glucose Monitoring System (G7) and its components according to the instructions for use provided with your device and available at 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 G7 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.