Best CGM Sensors of 2026: How the Top Options Compare

Updated October 26, 2026

The best CGM sensors of 2026 depend on who you are. If you want the longest wear, Eversense 365 lasts up to a year. If you want a sensor you put on yourself, the 15-day options lead. And if you don't use insulin and don't want a prescription, Stelo is the only over-the-counter choice here.

Selling? See how we buy Dexcom G7.

This page is general information, not medical or legal advice. Talk to your doctor or pharmacist about your own care.

Below, you'll see how the main U.S. options compare. Every number comes from the maker or the FDA.

Best CGM sensors side by side

Which one lasts the longest?

Eversense 365 lasts the longest. But a healthcare provider places it under your skin. It also needs a fingerstick calibration once a week after day 13.

Among sensors you put on yourself, four last about 15 days. Those are the G7 15 Day, Libre 3 Plus, Libre 2 Plus and Stelo.

Keep one thing in mind. Dexcom says about 26% of G7 15 Day sensors may not last the full 15 days. Longer wear on paper doesn't always mean longer wear on your arm.

Wear time affects more than comfort. A sensor that lasts longer means fewer changes each month, and fewer boxes to keep track of.

Simplera is the shortest on this list, at 6 days plus a 24-hour grace period. People who pair it with a Medtronic pump may still prefer it.

Which ones can kids use?

Three are cleared for children 2 and up. Those are the 10-day Dexcom G7, and the FreeStyle Libre 3 Plus and Libre 2 Plus.

The G7 15 Day, Stelo, Simplera and Eversense 365 are for adults 18 and older. If you're shopping for a child, that cuts the list down fast.

Ages matter. The age range is part of what each sensor is cleared for. So if a sensor is listed for adults only, don't plan on it for a 10-year-old, even if it would fit on a small arm. Ask your child's doctor which ones are an option.

Can I get one without a prescription?

Yes, but only Stelo. In March 2024, the FDA cleared Stelo as the first over-the-counter CGM. It's for adults who don't use insulin.

There's a catch. The FDA says Stelo isn't designed to alert you to low blood sugar. So it's not meant for people who have problem lows.

All the others need a prescription. Your doctor writes it, and your plan decides which brands it covers.

Which work with insulin pumps?

Some do, but only certain pairs. Abbott says the Libre 3 Plus and Libre 2 Plus work with select insulin pumps.

Omnipod 5 pods also come in versions for specific sensors. A pod built for Dexcom won't run with a Libre sensor. Our guide on Omnipod 5 Dexcom vs Libre pods shows how to tell them apart.

Before you switch sensors, call your pump maker. Ask which sensor and which pod version you need.

Cost matters too. Your health plan decides which sensors it covers, and that list can change each year. Call the number on your insurance card and ask before your doctor writes a new prescription. A sensor that fits you perfectly doesn't help much if your plan won't pay for it.

What changed with Libre in 2025?

Abbott stopped selling the original Libre 2 and Libre 3 sensors in the U.S. after September 30, 2025. Users moved to the Plus versions.

If you still have Libre 3 sensors, Abbott says you can keep using them until they expire.

Check for a recall, too. In November 2025, Abbott announced a correction for some Libre 3 and 3 Plus sensors that could read falsely low. You can look up your serial number at FreeStyleCheck.com.

Two people, two different answers

Picture a grandmother in Redlands with type 2 diabetes. She takes pills, not insulin, and wants to see how meals change her numbers. Stelo fits that profile, since it's made for adults who don't use insulin.

Now picture her 8-year-old grandson with type 1. He wears an insulin pump. His family would look at sensors cleared for kids that pair with his pump. That's a talk for his care team.

Same family, very different answers. That's why no single sensor is "best" for everyone.

If you're helping a parent or a child, bring this table to the next visit. It gives you a short list of questions to ask.

Here's a simple way to narrow it down. Start with age, then insulin use, then your pump, then your plan. By the time you get to the end, you'll often have just one or two choices left to talk over with your doctor.

A quick note on accuracy. Makers report it as MARD, and a lower number is better. Dexcom reports 8.2% for G7 and 8.0% for G7 15 Day. But each company runs its own studies, so numbers from different makers don't line up perfectly.

Keep reading

• We buy Dexcom G7: how it works
• How to Sell Unused Dexcom G7 Sensors
• How Much Is a Dexcom G7 Sensor Worth?
• Dexcom G7 15 Day vs 10 Day: How to Tell Them Apart

Questions

What is the longest-lasting CGM in 2026?

Eversense 365 lasts up to one year, but a provider places it. Among sensors you apply yourself, the 15-day sensors last the longest.

Is there a CGM I can buy without a prescription?

Yes. Dexcom Stelo is sold over the counter for adults who don't use insulin. It doesn't alert you to low blood sugar.

Which CGM is best for me?

That depends on your age, insulin use, pump and insurance. Your doctor or diabetes care team can help you choose.

Can I still use my Libre 3 sensors?

Abbott says you can use Libre 3 sensors until they expire. Check the serial number at FreeStyleCheck.com first.

Sources

• Dexcom Provider: how G7 15 Day differs from G7
• Dexcom: G7 15 Day receives FDA clearance (April 10, 2025)
• Abbott: transition to FreeStyle Libre 3 Plus or 2 Plus
• FreeStyle Libre US home page
• FDA: FDA clears first over-the-counter continuous glucose monitor
• MiniMed: Simplera sensor support
• FDA: Simplera system approval
• Eversense: Eversense 365
• Omnipod: Omnipod 5 FreeStyle Libre FAQs
• Abbott support: using Libre 3 sensors after September 30, 2025
• FDA: Abbott correction for certain FreeStyle Libre 3 and 3 Plus sensors
• Abbott: FreeStyleCheck.com sensor lookup