Dexcom CGM Explained
Dexcom offers freedom to choose the right AID system for you
Published: Dec. 1, 2025
Updated: Dec. 8, 2025
4 min read
For some who have diabetes, using an Automated Insulin Delivery (AID) system or insulin pump paired with a continuous glucose monitoring (CGM) system can be the best way to manage diabetes. Also called an “artificial pancreas,” “closed-loop system,” “hybrid closed-loop” or “bionic pancreas,” these systems include a pump that delivers insulin subcutaneously, an algorithm that calculates the appropriate insulin dosage, and a compatible CGM system that wirelessly communicates with the pump and its algorithm to direct them how to adjust insulin levels and keep your glucose in range. Using AID systems can help you avoid low glucose levels (hypoglycemia) and diabetic ketoacidosis (DKA), increase your time in range, and reduce the mental load of diabetes management.1
There are several insulin pumps to choose from, but when paired with Dexcom CGM, you have the freedom to choose whichever best fits your lifestyle. With over 13 years of partnerships with insulin pump makers, Dexcom G7 is the most connected CGM2, which means more customization, convenience and flexibility to fit your lifestyle, clinical needs and long-term goals.
Put simply, Dexcom G7 offers seamless integration with four leading AID systems, including the Beta Bionics iLet, the Omnipod® 5 System, and Tandem Mobi and t:slim X2. Each system offers unique benefits beyond automated insulin delivery, enabling you to take control and pick the AID system that works best for you on your diabetes management journey. Learn what each of these AID systems paired with Dexcom G7 can give you the freedom to do.
Beta Bionics iLet
Combining Dexcom CGM with Beta Bionics' innovative iLet Bionic Pancreas means no fingersticks|| from day one. The iLet streamlines diabetes management by automatically adjusting to your insulin needs based on your Dexcom CGM readings. Setup is easy, with only your weight required to get started. You can say goodbye to strict carb counting as the iLet learns about you, and insulin corrections will be made by the system automatically. (However, users must still be carb aware.)
Using Dexcom CGM with the iLet Bionic Pancreas allows you to make fewer decisions about your diabetes management by making them for you based on your Dexcom CGM readings.
*If your glucose alerts and readings from Dexcom G7 do not match symptoms or expectations, use a blood glucose meter to make diabetes treatment decisions.
Omnipod 5 System
The Omnipod 5 System is the only tubeless automated insulin delivery system that integrates with Dexcom G7. This means no tubes and no multiple daily injections or fingersticks|| in a system cleared for those with both Type 1 and Type 2 diabetes. It is a waterproof† wearable alternative to traditional tubed pumps that can be worn almost anywhere you’d give yourself an injection, and can now be controlled using a compatible smartphone or the Insulet provided Controller‡. Omnipod 5 proactively helps to correct highs and protect from lows every 5 minutes.3-4
Omnipod’s simplicity and unique features paired with Dexcom’s trusted accuracy can transform your diabetes management. For example, if you’ve taken up swimming as part of your exercise plan to better manage your diabetes, the waterproof Omnipod 5 paired with Dexcom CGM means real time glucose monitoring and continuous automated insulin delivery without the need to disconnect, even in the pool. Further, you can use Omnipod 5’s Activity feature to reduce insulin delivery when glucose typically goes low, like during exercising.
Tandem insulin pumps
Dexcom and Tandem have created life-changing5 diabetes management solutions with more than a decade of collaboration.
Tandem Mobi
Like all our connected AID systems, Tandem Mobi integrates seamlessly with Dexcom G7. It is impressively small and can be worn almost anywhere on the body§,clipped to clothes or slipped into a pocket, giving you more freedom and flexibility when you participate in your favorite physical activities while using Dexcom for real-time glucose monitoring. Powered by Control-IQ+ (the only predictive algorithm with AutoBolus), it includes a 30-minute prediction and automatically adjusts insulin delivery every 5 minutes to help protect from highs and lows. It is controlled with a compatible personal iPhone and integrates with Dexcom G7 for predictive alerts and more time in range5, all without fingersticks||.
Tandem is the only provider with a dedicated Sleep Activity (available on both Mobi and t:slim X2 AID systems), which is designed to help protect from overnight lows and morning highs with fewer disruptions from alerts and alarms. That means fewer restless nights and glucose-level surprises when you wake up.
*If your glucose alerts and readings from Dexcom G7 do not match symptoms or expectations, use a blood glucose meter to make diabetes treatment decisions.
Tandem t:slim X2
The Tandem t:slim X2 insulin pump is an all-in-one system that features a sleek and modern color touchscreen. It pairs with Dexcom G7 to predict and prevent highs and lows for more time in range5. Easy to use and able to hold up to 300 units of insulin, it’s also powered by Control-IQ+ with AutoBolus, which is designed to prevent highs6 and cover missed meal boluses. With Control-IQ+, you get unique and enhanced features for more targeted control. It includes 30-minute prediction and automatically adjusts insulin delivery every 5 minutes to help protect from highs and lows with zero fingersticks||. (However, as with all AID systems connected to CGMs, fingersticks might be required for diabetes treatment decisions if symptoms or expectations do not match readings.)
How to choose the right AID system
No matter what AID system you choose, Dexcom G7 gives you the freedom to choose the one that’s best for your lifestyle.
You’ll want to discuss the options with your healthcare provider. Consider your medical history, diabetes management journey, lifestyle, insurance coverage and budget, and your comfort level with the different technologies available. Notably, AID systems are prescribed primarily for children and adults who have Type 1 diabetes. However, if you have Type 2 and are on insulin, you could also be a candidate for the technology.
* The Pod has a waterproof IP28 rating for up to 25 feet for 60 minutes. The PDM and Controller are not waterproof. To view safety info for the Omnipod 5, please visit https://www.omnipod.com/safety. † The Dexcom G7 sensor is waterproof and may be submerged under eight feet of water for up to 24 hours without failure when properly installed. ‡ For a list of compatible devices, visit www.Dexcom.com/compatibility and www.omnipod.com/compatibility. § Do not wear or place your pump more than 12 inches (30.5 cm) above your infusion site. Doing so may result in over delivery of insulin. || If your glucose alerts and readings from Dexcom G7 do not match symptoms or expectations, use a blood glucose meter to make diabetes treatment decisions.
1 Sherr JL, et al. Diabetes Care. 2022;45(12):3058-74. 2 Dexcom, data on file. 2025. 3 Study in 240 people with T1D aged 6 - 70 years involving 2 weeks standard diabetes therapy followed by 3 months Omnipod 5 use in Automated Mode. Average time with high blood glucose in adults/adolescents and children, standard therapy vs. 3-month Omnipod 5: 32.4% vs. 24.7%; 45.3% vs. 30.2%. Median time with low blood glucose in adults/adolescents and children, standard therapy vs. 3-mo Omnipod 5: 2.0% vs. 1.1%; 1.4% vs. 1.5%. Brown SA, et al. Diabetes Care. 2021;44(7):1630-40. 4 Study in 80 people with T1D aged 2 - 5.9 yrs involving 2 weeks standard diabetes therapy followed by 3 months Omnipod 5 use in Automated Mode. Average time with high blood glucose (>180mg/dL) from CGM in standard therapy vs Omnipod 5 = 39.4% vs. 29.5%. Average time with low blood glucose (<70mg/dL) from CGM in standard therapy vs Omnipod 5 = 3.41% vs. 2.13%. Sherr JL, et al. Diabetes Care. 2022;45(8):1907-10. 5 Brown SA, et al. N Engl J Med. 2019;381(18):1707-1717. 6 Messer LH, Breton M. et al. Diabetes Technol Ther. 2023;25(12):877-882. 7 Russell SJ, et al. N Engl J Med. 2022;387(13):1161-72.
BRIEF SAFETY STATEMENT: Failure to use the Dexcom Continuous Glucose Monitoring System and its components according to the instructions for use provided with your device and available at 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 Dexcom CGM 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.
For Beta Bionics safety information, please visit www.betabionics.com/safety
To view safety info for the Omnipod 5, please visit www.omnipod.com/safety
Important Safety Information: RX ONLY. Indicated for patients with type 1 diabetes, 2 years and older and for patients with type 2 diabetes, 18 years and older. BOXED WARNING: Control-IQ+ technology should not be used in anyone under the age of 2 years old with type 1 diabetes or under the age of 18 years old with type 2 diabetes. It should also not be used in patients who require less than a total daily insulin dose of 5 units of insulin per day or who weigh less than 20 pounds, as those are the required minimum values needed for Control-IQ+ to operate safely. Safety info: tandemdiabetes.com/safetyinfo.