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Made in USAFreeStyle Libre 3 Sensor vs. Libre 3 Plus: Key Differences for Better Diabetes Management”
Nov
When managing diabetes, continuous glucose monitoring (CGM) has become essential for real-time glucose insights and improved quality of life. Among CGM devices, Abbott’s FreeStyle Libre series, including the FreeStyle Libre 3 and the newer FreeStyle Libre 3 Plus, has gained popularity. This blog breaks down the differences between these models to help you decide which fits your needs best.
1. Wear Duration
- FreeStyle Libre 3: This sensor provides glucose readings for up to 14 days before needing replacement.
- FreeStyle Libre 3 Plus: Offering a slightly longer wear time, the Libre 3 Plus sensor lasts up to 15 days, providing an extra day of monitoring and slightly reducing sensor changes throughout the year.
2. Data Transmission and Connectivity
- Both the Libre 3 and Libre 3 Plus provide real-time glucose readings every minute, automatically syncing data to the Libre 3 reader or a compatible smartphone app without the need for scanning, making it easier for users to stay aware of their glucose levels at all times. This feature is ideal for anyone who needs instant alerts and wants a seamless tracking experience.
3. Age Range for Usage
- Libre 3: Approved for users aged 4 and above, it’s versatile but might limit younger patients.
- Libre 3 Plus: Has expanded age approval and can be used by children as young as two years, making it a more inclusive option for families managing diabetes in young children.
4. Integration with Automated Insulin Delivery Systems
- A significant feature of the Libre 3 Plus is its compatibility with automated insulin delivery (AID) systems, specifically Abbott’s upcoming integration with the Beta Bionics iLet Bionic Pancreas. This development means that Libre 3 Plus users will soon be able to connect their CGM data directly to certain insulin pumps, allowing the device to automatically adjust insulin delivery based on real-time glucose data. This feature can offer more precise glucose control and may reduce the burden of manual dosing adjustments for those managing insulin-dependent diabetes.
5. Accuracy and Performance
- Both sensors boast excellent accuracy, with minimal lag in real-time readings. They provide users with a clear picture of their glucose levels, but with the added integration in the Libre 3 Plus, users on AID systems can expect even more stable readings that contribute to better overall management of glucose levels.
Which Sensor is Right for You?
- Choose FreeStyle Libre 3 if you need a reliable, straightforward CGM that provides consistent readings and integrates seamlessly with your smartphone. It’s a solid choice for individuals who are content with managing their diabetes through standard CGM technology.
- Opt for FreeStyle Libre 3 Plus if you require additional benefits, such as extended wear, compatibility with AID systems, and broader age approval. The Plus model offers added convenience and more flexibility for family members of younger users or individuals on advanced diabetes management plans.
FreeStyle Libre 3 and Libre 3 Plus Sensor Compatibility with App and Reader
It’s worth mentioning that both the FreeStyle Libre 3 sensor and the FreeStyle Libre 3 Plus sensor are compatible with the FreeStyle Libre 3 app and the Libre 3 reader, making it convenient for Libre 3 users to upgrade to Plus.
Reader vs. App
The Libre 3 app enables continuous glucose monitoring directly on a smartphone, allowing users to view real-time glucose levels, trends, and alerts on their mobile device. For those who prefer a dedicated device, the Libre 3 reader provides similar functionality without relying on a smartphone, offering users flexibility based on their lifestyle and preferences. For more information read our blog about the difference between the app and reader.
This dual compatibility ensures that Libre 3 and Libre 3 Plus users have easy access to their glucose information, whether through the app or reader, making diabetes management more adaptable and user-friendly.
Final Thoughts
The FreeStyle Libre 3 and Libre 3 Plus both deliver high-quality, accurate CGM experiences but serve different needs. The Libre 3 is ideal for standard glucose monitoring, while the Libre 3 Plus opens doors to advanced care options with its AID compatibility and flexibility. Both offer real-time insights that make diabetes management smoother and more responsive to individual needs, but the best choice will depend on how much flexibility and connectivity you need.
Choosing the right CGM sensor can enhance your diabetes management and help improve overall glucose control. Consult with your healthcare provider to determine which sensor best fits your lifestyle and health needs.
For more information, check out the resources on the FreeStyle Libre website and diabetes support sites.
Amir is interested in learning about diabetes management products. He loves sharing his findings and product know-how with his readers and is always on the lookout for the next best glucose monitoring system, CGM, or other innovative product.
It’s a freaking baboon festival. Half the time they fall off and half the time the app won’t read it
I used the Libre 3 from 2023-2024 with the Android phone app. I found the charts, history and reporting for glucose readings to be limited in reporting capabilities. Does the Plus display the same reports? Is there a way to output the data to a spreadsheet?
The only problem I had with it was that the sensor would quit working 5 days before it needed to be replaced. I don’t know if it was the sensor or the reader, but they finally sent me a new reader after I went through 3 sensors. Other than that, I have no problem with it.
In my few year of experience with libre you’re most likely having a sensor dislodge issues. It’s rare to have 3 consecutive faulty sensors. You should try those patches with extra glue wipes. There is no difference between libre 3 and plus when it comes to the sensor application. They both seem to have the same sticky ring around the sensor – no difference in size or the amount of glue. Libre does send a replacement for a faulty sensor and they are pretty good at it, but I don’t think I have ever heard anyone get a reader replacement. They usually deny that and push for the app.
Did you turn your phone completely off and then turn it on? I’ve had to do that sometimes to get it working again or when it doesn’t initially sinc when new.
I’ve found out the hard way that the sensors are not made for ‘sweating’. Even with the use of additional adhesives / patches, if you are out in the sun and perspiring, they literally sweat right off of your body. I’ve lost two very recently; one while hiking and the second while working in my garden. The fact that that can only get a script for the exact amount of sensors that SHOULD cover a particular time span, you’re left having to pay full price for a replacement (Abbott will only replace so many in my experience – they did replace one this last go-round). As an active person, I’m hoping that the Libre 3 Plus adhesive capability is far superior the 3.
Totally agree — sensors definitely tend to fall off when you’re sweating heavily. Anyone who’s ever worn one knows the tiny bit of glue they come with just isn’t enough. I have found that the trick is to make sure your skin is clean and free of anything that could interfere with the adhesive. I usually “thoroughly” clean the area first, or use a barrier wipe for extra adhesive to help it stick better. I do crossfit and sweat like crazy during workouts, sometimes it feels like the sensor’s just sliding right off my arm. I used to request a replacement every time one fell off, and to their credit, Abbott always honored them. I’ve never had a request rejected. That said, I think the patches actually help. I’ve been using those mirtouch patches someone recommended here, and they help. I usually go through one, maybe two, during a 15 day wear period. Also, going from the libre 3 to Plus, I didn’t notice any difference in how well they stick. I don’t think there is any difference when it comes to adhesive capability – exactly the same!
I am a new user, only had the first one on for 1 hour. I took a shower and about 20 minutes after showering so it was perfectly dry, I wiped the area off thoroughly with 91% Isopropyl Alcohol and let it dry for 3 minutes. I then applied the sensor and pressed it on to make sure it was fully adhered. It fell off after an hour.
The second one I did the same, but this time used medical tape and sports wrap to secure it. It was uncomfortable and irritated my armpit, but this is great technology right! Well day 4 I took a shower in the evening and 20 minutes later it stopped working! Reader lost connectivity error! I waited 2 hours hoping it would come back. It never did. Not impressed with the device. Abbott however has been great about replacing both sensors, I’m just not sure I want to invest more time in something that is not that great of a product!
Hey, definitely try using a patch! That little bit of glue around the sensor just doesn’t cut it—most of us find that out the hard way. Also, even if you clean your skin and use alcohol, the top layer can still mess with how well it sticks. What really helped me was using a bit of extra glue from those barrier wipes. I’ve been using the Mirtouch patches from this site (they include the wipes too), and they’ve been pretty good to me.
here is the link for it: https://diabeticoutlet.com/product/mirtouch-waterproof-adhesive-patch-for-freestyle-libre-1-2-3-sensor/
mine has never failed in fact it ishtar to get off
Clean the area with alcohol and put sensor on withing seconds not 1/2 hr. Also I use the waterproof adhesive discs, their like tagaderm clear and really sticky and elastic like, but my wife has to put it on for me, also maybe put the sensor a little lower, about 2-3 inches above your t shirt sleeve. This is what I’ve found works, I was having the same issues as you for the first few months but really no issues for the last 6 or so, also I would suggest getting the test strips from a local pharmacy to cross check with the sensor data sometimes its off by as far as 20 points and you need to make sure before you give I sulin or whatever you do to raise sugars quick(I found juice or milk works faster). Good luck.
I am so confused with my freestyle libre 3. My alarm goes off an my glucose is 52, one minute later it’s 103, I use a test strip and my glucose is 177. I don’t know what is going on.
I am having the same issue. Hope to get some understanding from someone.
The first question that comes to mind is: has this happened to you before? If not, it’s most likely a sensor malfunction. Assuming there haven’t been any changes in your usual conditions, getting abnormally high and low readings back to back could mean the sensor is dislodged. You may need to replace it with a new one.
If it happens again try an adhesive patch.
I’ve had the same issues for several months and later I came to find out that if you have swollen arms the sugar reading will be off with on/off low sugar reading. My meter worked fine until I had to do chemo for cancer treatment and I started having a lot of fluid retention where I constantly received the low glucose reading without having symptoms of hypoglycemia. Just had to check against the glucometer from time to time to make sure it is just an error in the reading due to excessive interstitial fluids
Is it true that the Libre 3 will be discontinued for the Libre 3 plus?
Yes, effective September 30, 2025. The Libre 3s will no longer work after that day.
I think they will continue to work for as long as you have them. What they are saying is they will not distribute libre 3s after that date. You will have to switch plus once you run through your 3s or 2s. The good news is there is no difference between the two, except you get an extra day with the Plus. Also, it works with the same app or the reader. By the way, everyone should get a reader. Don’t leave your health info on the app. Remember once it’s on phone it’s in cloud for everyone to grab, just saying… Maybe there is a reason why the readers are on high demand.