Managing diabetes used to be a complicated process filled with daily finger pricks and guesswork. Thanks to continuous glucose monitors (CGMs), that’s changing fast.
For many people, the biggest challenge is finding the most affordable continuous glucose monitor without compromising accuracy and features.
The good news? You don’t need to spend a fortune to monitor your blood glucose around the clock.
Affordable CGMs are now easier to find, and they come with great features like smartphone syncing, real-time alerts, and accurate tracking.
Whether you have Type 1 or Type 2 diabetes or just want to track your blood sugar for health reasons, choosing a budget-friendly option is now more realistic than ever.
What Is a Continuous Glucose Monitor?
A continuous glucose monitor is a small device that tracks glucose levels throughout the day and night.
A tiny sensor sits just under your skin and measures the glucose in the fluid between your cells. These readings are then sent to a receiver, smartphone app, or even a smartwatch.
Unlike traditional methods that give only one reading at a time, CGMs help you see trends, spikes, and patterns in your blood sugar. This can lead to better control, fewer complications, and more peace of mind.
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Why Choose an Affordable CGM?
Many CGMs on the market cost hundreds of dollars each month when you factor in sensors, transmitters, and compatible apps or readers.
But not everyone has access to full insurance coverage, so finding the most affordable continuous glucose monitor becomes critical.
Choosing an affordable model can:
- Save money over time
- Offer more flexibility for those paying out of pocket
- Still provide reliable tracking and alerts
- Make glucose monitoring more accessible to more people
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Top Affordable CGMs in 2025
Here’s a closer look at the best low-cost options available this year. These are rated based on pricing, accuracy, availability, and ease of use.
1. FreeStyle Libre 2
- Average Cost: Around $75 for a 14-day sensor
- Reader/App: Free app available; optional handheld reader costs extra
- Pros: No fingerstick calibration, real-time readings, and optional alarms
- Cons: No continuous streaming (requires scanning)
The FreeStyle Libre 2 continues to lead the way for anyone looking for the most affordable continuous glucose monitor that doesn’t sacrifice quality. It’s widely available, and many pharmacies carry it without requiring a prescription in some states.
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2. Dexcom G7
- Average Cost: Approx. $120/month (with subscription or discounts)
- Reader/App: Works with smartphones; dedicated receiver available
- Pros: Real-time updates, customizable alerts, small sensor size
- Cons: Higher upfront cost, but competitive with subscription plan
The Dexcom G7 is newer and offers amazing accuracy. If you can access it through insurance or a discount program, it becomes very affordable long-term. For tech-savvy users, this one’s a great pick.
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3. Medtrum Nano
- Average Cost: Estimated $60–$90 per sensor (varies by region)
- Reader/App: Uses the Medtrum EasySense app
- Pros: Compact, smartphone-compatible, budget-friendly
- Cons: Less widely available in the U.S.
Medtrum is not as well-known but is rising in popularity due to its price point. It’s especially ideal for international buyers or those seeking an alternative to the bigger brands.
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Comparison Table: Affordable CGMs at a Glance
| Feature | FreeStyle Libre 2 | Dexcom G7 | Medtrum Nano |
| Sensor Life | 14 days | 10 days | 14 days |
| Cost per Month | ~$150 | ~$120 | ~$120 |
| Calibration | No | No | No |
| Real-time Alerts | Yes | Yes | Yes |
| Smartphone App | Yes | Yes | Yes |
| Reader Needed | Optional | Optional | No |
| Availability | High (US/EU) | High (US/EU) | Limited (Varies) |
Each of these can be considered the most affordable continuous glucose monitor, depending on your location and whether insurance or pharmacy discounts are available.
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How to Save More on Your CGM
Here are a few tips to cut costs without cutting corners:
- Use Manufacturer Discounts: Companies like Dexcom and Abbott (makers of Libre) offer savings cards and patient assistance programs.
- Check Insurance Coverage: Some plans cover CGMs more fully than others.
- Use HSA/FSA Funds: These accounts let you buy CGMs tax-free.
- Shop Online Pharmacies: Sometimes, online prices are much lower than in-store.
By using one or more of these strategies, you can lower your cost and still get one of the best and most affordable continuous glucose monitors on the market.
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Things to Consider Before You Buy
Even if you’re on a budget, it’s important to look at more than just the price. Ask yourself:
- How long does each sensor last?
- Does it offer real-time alerts?
- Can I use it with my smartphone?
- Do I need a prescription?
- What’s the cost if insurance doesn’t cover it?
Answering these questions will help you choose the CGM that fits both your budget and lifestyle.
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A Word from GetMe Treated
Finding the most affordable continuous glucose monitor doesn’t mean you need to give up on accuracy, alerts, or app support.
With the right choice, you can monitor your glucose in real time, stay on top of your health, and save money, all at once.
Compare your options, look into patient programs, and consider your lifestyle needs before deciding.
Whether you’re new to CGMs or looking to switch from a more expensive brand, there’s a budget-friendly option out there that fits your needs.
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FAQs About the Most Affordable Continuous Glucose Monitor
What is the cheapest CGM available right now?
The FreeStyle Libre 2 is currently the cheapest CGM available in most pharmacies, especially if you don’t need the optional reader. It’s often covered partially or fully by insurance or discount programs.
Do I need a prescription for the most affordable continuous glucose monitor?
In some U.S. states, you can now buy the FreeStyle Libre 2 without a prescription. However, most CGMs still require one. Check your local regulations or pharmacy.
Are affordable CGMs as accurate as expensive ones?
Yes. The most affordable CGMs, like Libre and Dexcom, are FDA-approved and offer high accuracy. They may differ in features, but the core data is reliable.
Can I use my smartphone with an affordable CGM?
Absolutely. Most modern CGMs, including the affordable ones, sync with iOS and Android apps. This allows for real-time tracking and alerts without needing extra devices.
Is it safe to use a CGM without a doctor’s guidance?
While CGMs are safe and easy to use, it’s always best to consult your doctor. They can help interpret the data and adjust your treatment plan.
How long do CGM sensors last?
Sensor life varies. FreeStyle Libre sensors last 14 days, Dexcom G7 lasts 10 days, and other budget options like Medtrum may vary between 10–14 days.