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.3-7
Dexcom G7 vs G6 Differences: Find the right Dexcom CGM for you
We have a Real-Time CGM for you and your diabetes needs. From smaller size to new features, explore the differences between Dexcom G7 and G6.
Dexcom G7 Sensor | Dexcom G6 Sensor |
10-day lifespan | 10-day lifespan |
Smallest Dexcom sensor | Small sensor |
Size W: 1.07" x L: 0.94" | Size W: 1.2" x L: 1.8" |
All-in-one sensor and transmitter | - |
30-minute warm up | 2-hour warm up |
12-hour grace period | - |
Can be used during pregnancy | - |
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 | - |
Alert schedule | Alert schedule |
Dexcom G7 app | Dexcom G6 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 | Abdomen |
Upper buttocks (children only 2-6 years) | Upper buttocks (children only 2-17 years) |
Connectivity | Connectivity |
Smartphone iOS and Android* | Smartphone iOS and Android* |
Direct to Apple Watch¶ or Standard Watch Mode** | Smartwatch when connected with a smartphone** |
Dexcom G7 Receiver | Dexcom G6 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
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Joining the Dexcom family is easy. Simply click the link below to get started.
* Fingersticks required for diabetes treatment decisions if symptoms or expectations do not match readings. † Dexcom G6 and Dexcom G7 User Guides ‡ 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 G6 app, Dexcom G7 app or Receiver before making treatment decisions. ‖ Dexcom G6 and G7 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.
1 Dexcom, data on file, 2023. 2 Dexcom G7 CGM System User Guide. 2023. 3 Beck, RW, et al. JAMA. 2017;317(4):371-378. 4 Beck RW, et al. Ann Intern Med. 2017;167(6):365-374. 5 Martens T, et al. JAMA. 2021;325(22):2262-2272. 6 Laffel LM, et al. JAMA. 2020;323(23):2388-2396. 7 Welsh JB, et al. J Diabetes Sci Technol. 2024;18(1):143-7.
BRIEF SAFETY STATEMENT Failure to use the Dexcom G6 Continuous Glucose Monitoring System (G6) 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 G6 do not match symptoms, use a blood glucose meter to make diabetes treatment decisions. Seek medical advice and when appropriate, including for any medical emergency.
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 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 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.