EP074: CGM Comparison - Dexcom G7 vs. Libre 3 Plus vs. Eversense 365 — Which One Is Right for You?

There's no 'best' CGM. There's only the best CGM for you.

So you're thinking about getting a continuous glucose monitor. Or maybe you already have one and you're wondering if a different brand might work better for you.

Either way, you're in the right place.

We get this question all the time: "Which CGM is the best one?" The truth is, there's no single "best" CGM. There's only the best onefor you. Let's break down the three big options so you can make a confident choice.

Meet the Three Main Players

Dexcom G7

The Dexcom G7 is small, round, and wears on your arm or belly. It has two sensor options — a 10-day wear or a newer 15-day wear.

Here's a tip: don't calibrate your G7 on day one. The sensor needs a little time to settle in. Calibrating too early can actually mess up your accuracy for the rest of the wear.

The G7 also has predictive alerts. That means it can warn youbeforeyou go low, not just after. Pretty cool, right?

FreeStyle Libre 3 Plus

The Libre 3 Plus is even smaller than the G7. It's about the size of two stacked quarters. It has a slightly longer warmup time, but once it's going, it's known for solid accuracy too.

Accuracy on any CGM gets measured using something called MARD (Mean Absolute Relative Difference). Lower MARD numbers mean the sensor is closer to a real blood draw. Both the G7 and Libre 3 Plus have MARD scores in a similar, very good range.

Eversense 365

This one is different. The Eversense 365 is implanted under your skin by a doctor. It lasts a full year — no more sticking a new sensor on every week or two.

You do have to wear a smart transmitter patch on top of your skin, and you'll need to charge it daily. It's not for everyone, but if you hate changing sensors often, this could be a game-changer.

Wait — Is That "Low" Even Real?

Have you ever been sleeping, and your CGM screams that you're dangerously low... but you feel totally fine?

That might be a compression low.

Compression lows happen when you lie on your sensor. The pressure blocks the signal and makes the number look way lower than it really is. It's not a real low. It's a glitch.

How do you know the difference?

• Check how you actually feel

• Do a finger stick if you're not sure

• See if the number bounces back quickly once you move

Don't panic first. Check first.

Your CGM Is Not Your Judge

This is the big one, friends.

Your glucose monitor is a tool. It is not a report card. It is not grading your worth as a person.

When you see a high number, it doesn't mean you failed. It means your body is giving you information. That's it.

Chasing a perfectly flat line 24/7 isn't the goal — and honestly, it can backfire. Cutting out all carbs to avoid a spike can actually make your blood sugar swingmore, not less.

A better goal? Aim for 70% or more "time in range." That's considered well-managed. You don't need 100%. Progress, not perfection.

5 Questions to Ask Before You Panic

Next time you see a scary number, take a breath and ask:

1. Am I lying on my sensor?

2. Did I just eat, and is this a normal after-meal bump?

3. How do I actually feel right now?

4. Is this a new sensor still warming up?

5. Has this happened before and fixed itself?

Real Talk on Cost

CGMs can be pricey. Insurance often requires prior authorization, especially for insulin-dependent folks. But there are now over-the-counter CGM options too, which can be a great starting point if you don't have coverage yet.

Ask your doctor what's available and what fits your budget.

The Bottom Line

There is no "perfect" CGM. There's only the one that fits your life, your skin, your budget, and your comfort level.

And no matter which one you choose — remember, the numbers on that screen are just data. They are not your grade. You are not failing.

You're learning. And that's exactly what a CGM is for.

Ready to take the next step toward remission? Grab our free Type 2 and Prediabetes Remission Roadmap at and get a clear, shame-free path forward.

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