How Much Does a CGM Cost Without Insurance in 2026? (Every Device Priced)

Continuous glucose monitors have become far more accessible over the last two years — but accessible doesn't mean cheap. Without insurance, you're looking at anywhere from $89 to $400+ per month depending on which device you choose and whether you need a prescription.

This guide gives you exact numbers for every major CGM available in 2026, breaks down what insurance and Medicare actually cover, and helps you decide whether the cost makes sense for your specific situation.

CGM Cost Without Insurance: All Devices at a Glance (2026)

All figures are approximate US list prices as of 2026. Actual costs vary by pharmacy, retailer, and manufacturer savings programs — more on those below.

Dexcom G7: ~$350–400/Month Without Insurance

Dexcom G7 is the most expensive CGM on the market at list price. A box of three sensors — covering roughly 30 days at 10 days per sensor — retails for approximately $350–400 at most US pharmacies.

Dexcom also offers a G7 15 Day variant where each sensor lasts up to 15 days. You use fewer sensors per month, but the per-unit cost is higher, so the overall monthly spend is similar.

Dexcom runs savings programs for uninsured or underinsured patients. Their Dexcom ONE+ program and patient assistance options can significantly reduce out-of-pocket costs — worth checking at dexcom.com before paying full list price.

Who typically pays this? People with Type 1 diabetes or insulin-dependent Type 2 who need the G7's real-time hypoglycemia alerts, predictive low alerts, and insulin pump integrations — and who don't qualify for insurance or Medicare Part B.

Annual cost: ~$4,200–4,800 without savings programs.

FreeStyle Libre 3 Plus: ~$160/Month Without Insurance

FreeStyle Libre 3 Plus is the most cost-effective prescription CGM. Two sensors per month — each lasting 15 days — runs $150–170 at most US pharmacies. That's roughly half the price of Dexcom G7 with comparable accuracy (MARD ~8.9%).

Abbott offers savings programs for uninsured users through myfreestyle.com that can meaningfully reduce monthly cost for qualifying patients.

Who typically pays this? Type 2 patients on insulin who want prescription-grade accuracy without Dexcom's price.

Annual cost: ~$1,920 at list price.

Dexcom Stelo: ~$99/Month (No Prescription Needed)

Stelo was the first FDA-approved over-the-counter CGM in the US, launching in 2024. Two sensors per month — each lasting 15 days — retails for approximately $99.

Because it's OTC, you can buy it directly at dexcom.com, Amazon, CVS, Walmart, or Target without a doctor's visit or prescription. This removes the biggest access barrier that prescription CGMs carry.

Stelo is designed for adults 18+ with Type 2 diabetes not on insulin, or people monitoring glucose for general metabolic health. It does not include the hypoglycemia alert features of the prescription G7 — so it's not appropriate for people at risk of dangerous lows.

Annual cost: ~$1,188 if used continuously. Dexcom periodically runs promotions that can bring this below $99/month — worth checking their site.

Abbott Libre Rio: ~$89–99/Month (No Prescription Needed)

Libre Rio is Abbott's OTC answer to Stelo. Two sensors per month (14-day wear each) runs approximately $89–99, making it the most affordable OTC CGM currently available.

Like Stelo, it's sold without a prescription at pharmacies and online. It targets the same audience — people with Type 2 diabetes not on insulin, or those interested in metabolic health tracking. The Libre Rio runs on the LibreLink app, which many users already know from the Libre 3 Plus.

Real-world review data is thinner than the prescription Libre 3 Plus given its newer OTC status, but the underlying sensor technology is well established.

Annual cost: ~$1,068–1,188. The choice between Stelo and Libre Rio often comes down to ecosystem preference — Dexcom app vs. LibreLink.

Medtronic Simplera: ~$250+/Month Without Insurance

Medtronic Simplera is positioned specifically for users of the MiniMed 780G insulin pump. Exact list pricing is harder to pin down than other devices because Medtronic primarily sells through healthcare providers and insurance channels — but uninsured users typically pay $250+ per month.

Its 7-day sensor wear time is the shortest of any major CGM, meaning more frequent sensor changes and higher monthly unit volume compared to 14–15 day devices.

Unless you're already using a Medtronic pump and need the closed-loop integration with the 780G, this device rarely makes sense from a cost or accuracy standpoint compared to the alternatives.

Annual cost: $3,000+ without insurance.

What Does Insurance Cover for CGMs?

CGM coverage varies significantly by insurance type, diagnosis, and treatment regimen.

Medicare Part B

Medicare Part B covers CGMs as durable medical equipment for people with diabetes on intensive insulin therapy — defined as three or more injections per day or use of an insulin pump. Under Part B, most qualifying patients pay approximately $0–50/month after meeting their deductible.

Important limitation: Medicare does not currently cover CGMs for people managing diabetes with oral medications only, or for prediabetes — a significant gap for a growing population.

Private Insurance

Most major private plans cover Dexcom G7 and FreeStyle Libre 3 Plus for patients with Type 1 diabetes or Type 2 on insulin, with co-pays typically ranging from $0–75/month. Coverage for prediabetes or non-insulin Type 2 is rare — worth checking your specific plan documents.

Manufacturer Savings Programs

Even without insurance, both Dexcom and Abbott offer savings cards and patient assistance programs that can reduce out-of-pocket costs by $50–150/month for eligible patients. Always check before paying list price:

• Dexcom: myDexcom.com/savings
• Abbott: myfreestyle.com — FreeStyle Promise program
• Medtronic: medtronicdiabetes.com/patient-support

How Long Does Each CGM Sensor Last?

Sensor wear time directly affects monthly cost — a 15-day sensor at $50/unit costs less per month than a 7-day sensor at $35/unit.

CGM vs. Traditional Blood Glucose Meters: Cost Comparison

A traditional fingerstick blood glucose meter (BGM) costs significantly less than a CGM:

• Meter: Often free with manufacturer rebate
• Test strips: ~$10–30/month for 1–2 tests per day; $60–120/month for 6–8 tests per day
• Lancets: ~$5–10/month

For people who only need 1–2 readings per day, a BGM remains far cheaper. For people who need to test 6–10 times daily — such as Type 1 patients on intensive insulin therapy — strip costs alone can approach CGM pricing, and the CGM's continuous trend data is clinically far more useful. A BGM gives you a point-in-time snapshot; a CGM gives you direction and rate of change every 1–5 minutes.

Is a CGM Worth the Cost If You Have Prediabetes?

For most people with prediabetes, a CGM is likely not the right starting point — and not primarily for cost reasons.

CGMs are medical devices built around continuous real-time data: trend arrows, predictive alerts, and insulin pump integration. If you don't need those features — if your goal is understanding how meals affect your glucose and building better eating habits — you're buying more than you need.

What most prediabetes patients actually need is meal-level glucose awareness: understanding which foods spike you and which don't, so you can make smarter choices without a $1,000+/year hardware subscription. That's the gap GlucoSpike AI was built to fill — for $39.99/year, it scores every meal on a 0–10 scale for predicted glucose impact, no sensor or prescription needed.

If you're still weighing whether a CGM is right for you, see our guides on whether a CGM is worth it for weight loss, our 2026 CGM comparison by accuracy and cost, and the affordable CGM alternative for prediabetes.

Frequently Asked Questions

How much does a CGM cost per month without insurance?

It depends on the device. Dexcom G7 runs approximately $350–400/month, FreeStyle Libre 3 Plus around $160/month, Dexcom Stelo (OTC) $99/month, and Abbott Libre Rio $89–99/month. Medtronic Simplera typically costs $250+ per month. All figures are approximate US list prices without insurance or manufacturer savings programs applied.

What is the cheapest CGM without a prescription?

Abbott Libre Rio is currently the most affordable OTC CGM at approximately $89–99/month. Dexcom Stelo is similarly priced at $99/month. Both are FDA-approved over-the-counter and available without a doctor's visit at major pharmacies and online retailers.

Can I get a CGM without a prescription?

Yes. Dexcom Stelo and Abbott Libre Rio are both FDA-approved over-the-counter CGMs available without a prescription. They're designed for adults 18+ with Type 2 diabetes not on insulin, or anyone interested in monitoring their glucose for metabolic health. Prescription CGMs — Dexcom G7, FreeStyle Libre 3 Plus, and Medtronic Simplera — require a doctor's prescription.

Does Medicare cover continuous glucose monitors?

Medicare Part B covers CGMs for people with diabetes who use insulin at least three times daily or use an insulin pump. People managing diabetes with oral medications only, or those with prediabetes, are not currently covered. Qualifying patients typically pay $0–50/month after the Part B deductible.

How much does a Dexcom cost without insurance?

Dexcom G7 costs approximately $350–400 per month at US pharmacies without insurance. The OTC Dexcom Stelo costs approximately $99/month with no prescription required.

How much does a FreeStyle Libre cost without insurance?

FreeStyle Libre 3 Plus (prescription) costs approximately $160/month without insurance. Abbott Libre Rio (OTC) costs approximately $89–99/month without insurance or a prescription.

What is the annual cost of a CGM?

Annual costs range widely: Libre Rio OTC is approximately $1,068–1,188/year, Dexcom Stelo OTC is ~$1,188/year, FreeStyle Libre 3 Plus prescription is ~$1,920/year, Medtronic Simplera is $3,000+/year, and Dexcom G7 is $4,200–4,800/year. These are list prices before insurance, savings programs, or promotions.

Is there a cheaper alternative to a CGM for prediabetes?

Yes. For people whose primary goal is understanding how food affects their blood sugar — especially those with prediabetes or early metabolic concerns — a meal glucose scoring app like GlucoSpike AI provides meal-level glucose awareness at $39.99/year. It doesn't replace a medical-grade CGM for insulin management, but it covers the food awareness use case at a fraction of the cost.

Do CGM costs go down with insurance?

Significantly. With qualifying insurance or Medicare Part B, many patients pay $0–75/month in co-pays for prescription CGMs. The actual amount depends on your plan's formulary and deductible status. Always check your plan's drug or DME benefit before assuming you'll pay list price.

How does CGM cost compare to a blood glucose meter?

A traditional fingerstick meter and strips cost roughly $15–30/month for moderate testing frequency. CGMs cost $89–400/month depending on the device. The cost gap is real, but CGMs provide continuous trend data rather than point-in-time snapshots — a meaningful clinical difference for people who need to actively manage glucose throughout the day.