The main insulin pump brands available in the U.S. in 2025 are Tandem, Medtronic, Insulet (Omnipod), and Beta Bionics (iLet). All four brands now offer automated insulin delivery (AID) systems that link the pump to a continuous glucose monitor and automatically adjust basal insulin. The right pump depends on your CGM preference, whether you want tubing or a patch design, and your insurance coverage.
How Modern Insulin Pumps Work
An insulin pump is a small computerized device that delivers rapid-acting insulin continuously through a thin catheter inserted under the skin. It replaces the basal function of long-acting insulin and delivers mealtime boluses when you eat. Modern pumps paired with a CGM form a “hybrid closed-loop” or “automated insulin delivery” system that adjusts basal insulin every few minutes based on glucose trends.
Pumps are most commonly used by people with type 1 diabetes but are increasingly prescribed for people with insulin-requiring type 2 diabetes who need multiple daily injections.
The Four Major Insulin Pump Brands
| Feature | Tandem t:slim X2 | Medtronic 780G | Omnipod 5 | Beta Bionics iLet |
|---|---|---|---|---|
| Design | Tubed, touchscreen | Tubed, button/screen | Tubeless patch pod | Tubed, touchscreen |
| Reservoir size | 300 units | 300 units | 200 units (pod) | 180 units |
| AID algorithm | Control-IQ | SmartGuard | SmartAdjust | iLet Bionic Pancreas |
| Compatible CGM | Dexcom G6, G7, Libre 2 Plus (pending) | Guardian 4, Simplera | Dexcom G6, G7, Libre 2 Plus | Dexcom G6, G7 |
| Carb counting | Required for bolus | Required for bolus | Required for bolus | Meal size only (usual, more, less) |
| Phone control | Yes (bolusing) | Yes (viewing + bolus on iOS) | Yes (full control iOS/Android) | No (device-only) |
| Approved age | 6 and up | 7 and up | 2 and up | 6 and up |
Tandem t:slim X2 With Control-IQ
The Tandem t:slim X2 is a small, rechargeable tubed pump with a color touchscreen. Its Control-IQ algorithm automatically adjusts basal insulin and delivers correction boluses to target a glucose of 112.5-160 mg/dL. Control-IQ is FDA-cleared to work with Dexcom G6 and G7, and a Mobi (miniaturized Tandem) pump is available for a smaller footprint.
Tandem pumps are known for being upgradeable via software; existing pumps can receive new features and algorithm updates without hardware changes.
Medtronic MiniMed 780G
Medtronic’s 780G uses SmartGuard technology to auto-adjust basal insulin and deliver auto-correction boluses every 5 minutes toward a target of 100, 110, or 120 mg/dL. It pairs with Guardian 4 or Simplera CGM sensors. The 780G has the longest insurance history, and Medtronic has the largest U.S. installed base of pump users.
The 780G appeals to people who want an all-Medtronic ecosystem (pump, CGM, and support). Trade-offs include a 7-day CGM sensor and Medtronic-specific infusion sets.
Omnipod 5: The Tubeless Option
The Insulet Omnipod 5 is the only fully tubeless AID system available. A disposable pod (worn up to 72 hours) contains the insulin reservoir, cannula, and pump mechanism. You control it through a handheld controller or a compatible smartphone (iOS and Android).
Omnipod 5 pairs with Dexcom G6, G7, and FreeStyle Libre 2 Plus. Its SmartAdjust algorithm targets 110-150 mg/dL. Because Omnipod is distributed through the pharmacy benefit rather than durable medical equipment, many users have lower upfront costs.
Beta Bionics iLet Bionic Pancreas
The iLet, FDA-cleared in 2023, uses a simplified approach: you enter only your weight at setup and describe meals as “usual,” “more than usual,” or “less than usual.” The algorithm adapts automatically, with no carb counting and no preset basal rates. It pairs with Dexcom G6 and G7.
The iLet is designed to lower the cognitive burden of pump use, particularly for people who struggle with carb counting. Clinical trials showed similar A1C outcomes to standard AID therapy in people with type 1 diabetes.
Cost and Insurance
Insulin pumps are typically covered under one of two insurance pathways:
- Durable Medical Equipment (DME): Tandem, Medtronic, and iLet are usually covered under DME with a 4-year warranty. Out-of-pocket upfront cost depends on your deductible and coinsurance.
- Pharmacy benefit: Omnipod 5 pods are covered through the pharmacy benefit, similar to how insulin pens are covered. No upfront pump cost; supplies are billed monthly.
Medicare Part B covers pumps for eligible beneficiaries with type 1 or insulin-dependent type 2 diabetes who meet specific criteria. Commercial insurance typically covers pumps for type 1 and for type 2 on intensive insulin therapy.
Who Should Consider an Insulin Pump?
Pumps may be a good option for people who:
- Have type 1 diabetes and want tighter glucose control
- Experience frequent hypoglycemia or dawn phenomenon
- Have a highly variable schedule (shift work, frequent travel)
- Have insulin-requiring type 2 diabetes with A1C above goal despite multiple daily injections
- Plan pregnancy with diabetes
Pumps require commitment to CGM wear, infusion set changes every 2-3 days, and troubleshooting. See our treatment overview for how pumps fit into diabetes care.
Choosing Between Brands
When comparing insulin pump brands, consider:
- CGM compatibility. Your CGM choice narrows your pump options.
- Tubed vs. tubeless. Patch pumps (Omnipod) are popular for active users; tubed pumps offer larger reservoirs.
- Phone control. Omnipod 5 offers full phone control on iOS and Android; Tandem and Medtronic have more limited phone apps.
- Carb counting. If carb counting is a burden, iLet’s simplified input may help.
- Algorithm targets. Most AID systems aim for around 110-120 mg/dL; targets and aggressiveness differ.
Your endocrinologist and diabetes educator can help you trial demo pumps and choose the right fit.
Trends in Pump Technology
The FDA’s artificial pancreas framework has accelerated interoperability. The iCGM, ACE pump, and iAGC categories allow mix-and-match components. Users can, in some cases, combine a Dexcom CGM with multiple pump brands.
Expected near-term developments include smaller pumps, longer-wear infusion sets (up to 7 days), dual-hormone systems (insulin plus glucagon), and fully smartphone-driven platforms.
Possible Drawbacks of Pumps
Pumps aren’t right for everyone. Risks and downsides include:
- Diabetic ketoacidosis risk if insulin delivery is interrupted (no long-acting reservoir)
- Skin irritation or infection at infusion sites
- Device failure, clogged cannulas, or empty pods
- Higher cost than multiple daily injections in some cases
- Learning curve and ongoing supply management
Backup supplies (insulin pens or syringes, fast carbs, and glucose meter) are essential for every pump user.
The Bottom Line
The four major insulin pump brands are Tandem, Medtronic, Omnipod, and Beta Bionics. Each offers an automated insulin delivery system paired with a CGM. Tandem t:slim X2 and Medtronic 780G are rechargeable tubed pumps; Omnipod 5 is tubeless; iLet simplifies meal inputs. The right pump depends on your CGM preference, lifestyle, and insurance. Work with your endocrinologist and diabetes educator to trial systems and pick the one that best fits your daily life.
