Three insulin pump systems currently integrate with the Dexcom G7 continuous glucose monitor: the Omnipod 5, the Tandem Mobi and t:slim X2, and the iLet Bionic Pancreas. All three use the G7’s glucose readings to automatically adjust insulin delivery, forming what’s known as an automated insulin delivery (AID) system.
Omnipod 5
The Omnipod 5 is a tubeless, disposable patch pump that sticks directly to your skin. It uses G7 readings to increase, decrease, or pause insulin delivery every five minutes without any input from you. The system has supported Dexcom G7 on Android phones since July 2024, and as of June 2025, the Omnipod 5 App (v3.0.1) for iPhone is also compatible with the G7 and available on the Apple App Store.
To connect, you select Dexcom G7 during the Omnipod 5 setup process. If you’re already using the system and switching from a G6, you can tap the menu button on the home screen, go to “Manage sensor,” and add a new G7 sensor from there. The pump and sensor communicate through the Omnipod 5 app on your phone, so your phone acts as the controller for the entire system.
Tandem Mobi and t:slim X2
Tandem makes two pumps that work with the G7. The Mobi is a small, lightweight pump that can be worn discreetly with or without tubing clipped directly to your body. The t:slim X2 is Tandem’s more established tubed pump with a touchscreen interface. Both run Tandem’s Control-IQ algorithm, which adjusts basal insulin rates and can deliver automatic correction boluses based on predicted glucose levels from the G7.
The Mobi pairs with the G7 through the Tandem app on a compatible smartphone. The t:slim X2 connects to the G7 directly through the pump’s built-in Bluetooth. In both cases, the G7 sensor readings flow into Control-IQ, which then makes dosing adjustments to keep glucose in your target range.
iLet Bionic Pancreas
The iLet from Beta Bionics takes a different approach. Instead of requiring you to calculate carb ratios or set basal rates, the iLet only asks for your weight at setup. It then uses its own adaptive algorithm to learn your insulin needs over the first few days and adjusts from there, using G7 data to drive all dosing decisions.
To upgrade to G7 on the iLet, you download or update the iLet app from the Apple App Store or Google Play Store. Once the app is current, it automatically loads the certificates needed to enable G7 features on the iLet device. When you pair a new sensor, the app gives you a choice between Dexcom G6 or G7.
How These Systems Differ
The biggest practical difference is how much setup each system requires from you. The iLet is designed to be the simplest, needing only your body weight. Omnipod 5 and Tandem’s Control-IQ both require you (or your care team) to enter settings like basal rates, correction factors, and carb ratios, though they handle adjustments automatically from there.
- Tubing: Omnipod 5 and the Tandem Mobi are tubeless or near-tubeless options. The t:slim X2 and iLet use traditional infusion sets with tubing.
- Phone dependence: Omnipod 5 and the Tandem Mobi require a compatible smartphone to operate. The t:slim X2 and iLet have their own built-in screens and can function without a phone.
- Pod changes: Omnipod 5 pods are replaced every three days and discarded. Tandem and iLet pumps use refillable cartridges with separate infusion site changes.
Insurance and Medicare Coverage
Most private insurance plans cover at least one of these pump systems alongside the Dexcom G7, though which ones are preferred varies by plan. Some insurers have exclusive contracts with specific pump manufacturers, so your coverage may steer you toward one system over another.
Medicare Part B covers both insulin pumps and continuous glucose monitors like the G7 as durable medical equipment. To qualify, you need a prescription from your provider, you must use insulin or have a history of low blood sugar episodes, and your provider must confirm that you or your caregiver have been trained on the device. Routine follow-up visits, either in person or via telehealth, are also required. In certain parts of the country, Medicare may require you to use a specific pump supplier, so it’s worth checking with your regional Medicare office before ordering.
Choosing the Right System
If discretion and freedom from tubing are priorities, the Omnipod 5 or Tandem Mobi are strong options. If you prefer a pump with its own screen that doesn’t rely on your phone, the t:slim X2 or iLet may be a better fit. And if you want the least hands-on setup possible, the iLet’s weight-only initialization is uniquely simple.
All four pumps achieve the same core goal: they read your G7 glucose data in real time and adjust insulin delivery automatically to reduce both highs and lows. The differences come down to form factor, how much manual configuration you want, and what your insurance covers.