Dexcom G7

The Dexcom G7 from Dexcom, Inc.

The all-in-one Dexcom G7 CGM system is indicated for individuals with diabetes ages 2 years and older. This newest offering from Dexcom features an approximate 60% decrease in size over the G6, a 30-minute sensor warm-up time and a twelve-hour grace period to replace expiring sensors. There are also enhanced alert settings and a redesigned mobile app.

Similar to the G6, The G7 delivers real-time glucose readings sent automatically every 5 minutes to a compatible display device* and is capable of integration with a wide array of popular devices.

Dexcom G7 connects to the Apple Watch with Direct to Watch using Bluetooth. When Direct to Watch is active, the sensor sends CGM data right to the watch so the phone is no longer needed to see glucose numbers.  For more information see Direct to Watch FAQ

Features for users include:

  • ability to see glucose data even when not near Smartphone
  • no cellular plan needed because Direct to Watch uses Bluetooth
  • real-time glucose data through share and to partner health apps is backfilled via smartphone connection
  • current glucose reading, trend arrow, trend graph (past 1, 3, or 6 hours), and alerts are available to view.
  • iPhone* that is running iOS 17 or later and an Apple Watch Series 6 or later running watchOS10 is required

View a list of compatible smart devices 

For complete information, visit Dexcom

Sensor Duration:
Longevity: Sensor typical longevity is sufficient to support 10 day wear period plus a 12 hour grace period.
Warmup Time:
30 minute sensor warm-up
Approved For Children:
Indicated for the management of diabetes in persons 2 years and older
Share Follow Capability:
Yes, when using Dexcom G7 app. The Dexcom Follow app and internet connectivity allows up to 10 people to remotely monitor glucose information and alerts.
Fingerstick Calibration Required:
No fingersticks required (however, if glucose alerts and readings from this device do not match symptoms or expectations, users are advised to use a blood glucose meter to make diabetes treatment decisions).
Customizable Alerts Alarms:


  • Alerts (low, high, rising/falling fast, delayed first alert (high), urgent low soon alert) can be customized with more sound options
  • Urgent Low alert at 55mg/dl cannot be turned off
  • Urgent low soon alert: provides alert when your glucose is expected to reach 55 mg/dL within the next 20 minutes
  • Two different alert profiles can be created
  • Vibrate: users have the option to select Vibrate. All alerts will display and vibrate but won't sound. You can set vibrate mode for up to 6 hours or indefinitely. Urgent Low and technical alerts act differently even in quiet mode; if you don't acknowledge them, they will add sound. 
Dexcom Clarity
Overall MARD 8.2%
Covered By Medicare:
Insulin Pump Compatibility:

iCGM capable of integration

Dexcom partners are working to integrate G7 into their apps and systems. In the meantime, Dexcom recommends that you continue using Dexcom G6 until G7 is compatible with your preferred insulin delivery system and digital health apps. 

Recommended Placement:

Back of Upper arm (ages 2 and up)

Upper buttocks (optional in ages 2-6 years) 

Additional Details:

Dexcom G7 is for patients two years and older with any type of diabetes including type 1, type 2, or gestational diabetes. 

Dexcom G7 can be worn during pregnancy for all types of diabetes (type 1, type 2, or gestational).

Clarity Summary reports (3,7,14, 30, and 90-day) of time in range and average glucose are recorded in the display device.

Once inserted, the sensor is waterproof up to 8 feet. Swim, shower and take a bath with the sensor

Transmitter Sensor Size:
Wearable Sensor Dimensions: 27mm x 23mm x 4.7mm
Receiver Size:
93mm x 23mm x 12mm
Receiver Longevity: 7 Days, Receiver Charge Time: 3 Hours
Transmitter Range:
Keep your sensor and display device within 20 feet with no obstacles between them
Continuous Data Transmission:
Yes (must be within 20 feet of display device (app and/or receiver)

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This site and its services do not constitute the practice of medical advice, diagnosis or treatment. Always talk to your diabetes care and education specialist or health care provider for diagnosis and treatment, including your specific medical needs. If you have or suspect that you have a medical problem or condition, please contact a qualified health care professional immediately. To find a diabetes care and education specialist near you, visit the ADCES finder tool.

ADCES and danatech curate product specifics and periodically review them for accuracy and relevance. As a result, the information may or may not be the most recent. We recommend visiting the manufacturer's website for the latest details if you have any questions.

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