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Stelo

Stelo Glucose Biosensor & App by Dexcom - A Leader in Continuous Glucose Monitoring (CGM). 24/7 Tracking & Personalized Insights to Reveal Patterns. 2-Pack (Up to 15 Days Each). iOS & Android.

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Availability: In Stock.
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Arrives Thursday, Mar 5
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Features

  • For people NOT using insulin, ages 18 years and older
  • Dont use if: On insulin, on dialysis, or have problematic hypoglycemia
  • YOUR SUCCESS, OUR COMMITMENT: If your biosensor fails before the 15-day wear time is up,[2] we will replace it for free. [3]
  • PRODUCT SUPPORT: Provided by Stelo through SteloBot, which can be accessed via the Stelo app by going to Settings > Contact. SteloBot virtual support assistant is available 24/7, and live agent support available during regular business hours
  • PERSONALIZED INSIGHTS: Understand your glucose patterns and how your glucose reacts to food, activity, and sleep
  • MOST ACCURATE: Stelo is the most accurate glucose biosensor [4] available without a prescription.
  • POWERFUL FEATURES: Discover 180 days of in-app glucose history, spike & pattern detection, personalized insights, activity & smart food logging, in-app learning, and seamless syncing with Apple Health, Google Health Connect, and Oura
  • AVAILABLE FOR iOS AND ANDROID: The only biosensor that works with both Apple and Android operating systems (compatible smartphone required,[1] available in the US only)
  • WATERPROOF: Fully waterproof up to 8 feetthe highest waterproof rating of any glucose biosensorso you can move with confidence in and out of the water [5,6]
  • LONGEST WEAR TIME AVAILABLE: One biosensor has up to a 15-day wear time* plus a 12-hour grace period. One box/order includes two biosensors for up to 30 days of wear time.[*,5]

Description

The Stelo Glucose Biosensor includes an applicator with an all-in-one sensor/transmitter, overpatch, and Stelo app (available on both iOS and Android). The biosensor is a small and flexible wire, which is inserted by the applicator under the skin. Stelo has an expected wear time of up to 15 days with an extended 12-hour grace period. The transmitter is connected to the sensor and is worn on the body using the patch and overpatch. The transmitter estimates the glucose values and sends them to the Stelo app via Bluetooth. The Stelo app displays the current glucose values and the direction the glucose is heading. The information can help users make better decisions about food and activity relating to their glucose management. INDICATIONS FOR USE: The Stelo Glucose Biosensor System is an over-the-counter (OTC) integrated Continuous Glucose Monitor (iCGM) intended to continuously measure, record, analyze, and display glucose values in people 18 years and older not on insulin. The Stelo Glucose Biosensor System helps to detect normal (euglycemic) and low or high (dysglycemic) glucose levels. The Stelo Glucose Biosensor System may also help the user better understand how lifestyle and behavior modification, including diet and exercise, impact glucose excursion. The user is not intended to take medical action based on the device output without consultation with a qualified healthcare professional. CONTRAINDICATIONS: No MRI/CT/diathermy - MR unsafe. WARNINGS: Choking hazard. Don’t use if you have problematic hypoglycemia. Don’t use if you are on dialysis. Don’t ignore low/high symptoms: When your sensor readings are not consistent with your symptoms, consult your healthcare provider. DON’T CHANGE MEDICATIONS: Consult your healthcare provider before making any medication adjustments based on your sensor readings. WHERE TO STORE: You can store your sensors at room temperature or in your refrigerator, between 36 F and 86 F, but not in the freezer. A study was conducted to assess the sensor life where 77.9% of sensors lasted the full 15 days. In other words, when using the product per the package labeling, approximately 20% of sensors may not last for the full 15 days, 10% of these sensors may last less than 12 days. †Results obtained from previous Dexcom device(s) in patients with diabetes. 1 For Stelo app compatibility information, visit stelo.com/compatibility. 2 Product issues will need to be confirmed with our technical agent. 3 Validated replacements are not limited. 4 Dexcom, data on file, 2024. 5 Stelo User Guide. 6 The Stelo biosensor is waterproof and may be submerged under eight feet of water for up to 24 hours without failure when properly installed. If you are in or near water, your smartphone may need to be closer than 20 feet to get readings. If you are in water, you may not get readings until you get out. 7 Reed J, et al. Diabetes Obes Metab. 2024;26(7):2881-9. 8 Layne JE, et al. Diabetes Technol Ther. 2024;26(12):925-31. 9 Porter, et al. J Diabetes Sci Technol. 2022;16(2):578-580. 10 UKPDS Group. Lancet. 1):837-53. 11 Ehrhardt, et al. Clin Diab. 2020;38(2):1-6. 12 Clark TL, et al. Diabetes Technol Ther. 2024;26(10):700-8. STELO IMPORTANT INFORMATION: Consult your healthcare provider before making any medication adjustments based on your sensor readings and do not take any other medical action based on your sensor readings without consulting your healthcare provider. Do not use if you have problematic hypoglycemia. Failure to use Stelo and its components according to the instructions for use provided and to properly consider all indications, contraindications, warnings, and cautions in those instructions for use may result in you missing a severe hypoglycemia (low blood glucose) or hyperglycemia (high blood glucose) occurrence. If your sensor readings are not consistent with your symptoms, a blood glucose meter may be an option as needed and consult your healthcare provider. Seek medical advice and attention when appropriate, including before making any medication adjustments and/or for any medical emergency. Dexcom, Dexcom Clarity, Dexcom Follow, Dexcom One, Dexcom Share, Stelo, any related logos and design marks are either registered trademarks or trademarks of Dexcom, Inc. in the United States and/or other countries. ©2026 Dexcom, Inc. All rights reserved. MAT-5936. LBL-1005853 Rev 006 & LBL-1005854 Rev 006. Google Play is a trademark of Google LLC. App Store is a registered trademark of Apple Inc. For product support, please refer to the troubleshooting section of User Guide, which can be found in the Product guides and documents section of this page. Manufacturer Contact Information Dexcom, Inc. 6340 Sequence Dr., San Diego, CA 92121

Brand: Stelo


Product Dimensions: 1.1"L x 0.9"W x 0.2"H


Model Name: Stelo


Battery Cell Composition: Lithium Manganese Dioxide


Battery Life: 30 days


Operating Time: ‎30 Days


UPC: ‎386270004857


Included Components: ‎2 applicators, 2 biosensors, 2 overpatches


Special Feature: ‎App available on iOS and Android


Manufacturer: ‎Dexcom, Inc.


Product Dimensions: ‎1.1 x 0.9 x 0.2 inches


Item Weight: ‎8.8 ounces


Item model number: ‎STP-XN-003


Batteries: ‎2 Lithium Metal batteries required. (included)


Date First Available: ‎January 24, 2025


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Mar 5

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • CGM
Size: 2 Biosensors
Review Image by Sergey Sergey
Review Image by Sergey Sergey
Review Image by Sergey Sergey
Review Image by Sergey Sergey
Review Image by Sergey Sergey
When ordering these I saw reviews about issues contacting customer service as well as problems with adhesion and even pain for some people but after I looked in to documentation and how this device works and what support is expected and how to handle issues I felt pretty comfortable ordering. I ran though two sensors and each lasted entire 15days and I am on the third one right now 3 days in. My overall experience has been great and I will try to address some of the common issues and pitfalls you may want to avoid. This device is a derivative of Dexcom G7 that are sold for diabetics by pharmacies with prescription only, main differences between Dexcom G7 and Stelo from what I know are: 1) Dexcom G7 is 3 sensors 10 days lifespan each, while Stelo is 2 sensors with 15 days each 2) Dexcom G7 has calibration in the app, white Stelo does not have this feature. 3) Dexcom G7 has live support because it is a medical device for patients with diabetes and is only available by prescription. 4) Dexcom G7 costs more - that I think is the obvious one. Lets go over each one, Stelo explains in its documents that it expects over 80% of its sensors to last all 15 days it also mentions that should a sensor fail before 15 days they will replace it. They also mention that over 90% or so will last 10days This means that medical device G7 is limited to 10 days because of much higher survival time %, while Stelo is allowed to run 15days with bit higher probability of failure which reduces costs to the consumer - as they only get two sensors and they are protected from failures by replacements. There is no calibration because accuracy is not as important for average person without medical condition, and incorrect calibration may mess up accuracy. Consumer version is targeted for general trends and not for precision accuracy, I agree with this decision. Medical grade devices have phone support but they also cost significantly more and require prescription and doctor visits. When using Stelo you will be limited to chat and email support, but in most cases sensor failures will be reviewed and decision will be made about the nature of the failure. Company can monitor these devices and it knows when device fails and how based on telemetry form the sensor and how it failed. Expect that support will be weak but they will address failures and if they meet criteria - these will be replaced. If sensor fails for me I will post the process and update. Now about the device and user experience - it is important that you apply the sensor properly and in the correct are, if you make a mistake here - sensor will not be covered by warranty. Watch some videos, learn how prep the area, how to find the right area, how to best position the applicator. Simple rules are to look for fat on the back of the hand, with your finders find the fatty are - avoid muscles. if you apply this to a muscle - you will bleed, you will be in pain and you will kill the sensor. If you use the included patch it lasts 15 days no problem, but this patch is soft and you will notice the sensor more, if you get high quality patch with a hole for G7 then it is thicker and will distribute movement better and sensor basically disappears. I added photos of the patch I use from Onida and it made a big difference. The app is very simple and well made and works amazingly well, you can bring sleep data, exercise data and food data right on to the chart via Google Health Connect if you track and monitor those activities in other apps. Over that last 30+ days I saw disconnected sensor few times, it was always when i was not near my phone and it reconnected on its own once I was close. Having a phone on, in the same room works fine, it is only when you go in to another room it may loose connection. Apple seems to have support for direct connection to watch so sensor talks to the watch and phone is does not need to be close by. Spend time making sure area you apply the patch to is clean - use alcohol to remove oils, make sure you place the sensor in the right area, add high quality patch. Placement is most important part of the process, take your time note what worked. For me placing the sensor with release button facing the shoulder was resulted with best experience, actual filament entry is on that side. Some advice I got from others, is to apply next sensor while existing one is still working and let that new sensor warm up before switching to it, some people do it 30min before and some people do it 12 hours before the switch so data is most accurate and there is not gap in the data. Sensor will continue to work 12 hours after 15 days are up and I tested that on my last sensor, where app said sensor life is over and it showed 12 hour countdown reminding me to switch over to new one. *** This is first update on Jan 23 and I plan to update again after I complete all 4 sensors. *** This is an update on Feb 8, I completed third sensor that also lasted all 15 days and worked 12 hours after it expired officially. ... show more
Reviewed in the United States on January 7, 2026 by Sergey Sergey
    • CUSTOMER SERVICE ? HORRENDOUS !
Size: 2 Biosensors
If I could give it less than 1 star I would. Sensor worked for only 8 days, and then gave me a “Signal Loss” message. I went through all the trouble shooting steps in the app, and checked all my phone settings. Signal NEVER came back. App says if signal loss lasts longer than 3 hours, contact customer service. I went through the app to manufacturer’s website. Customer service is an automated chatbot called SteloBot. Eventually, I was able to request chat with a live agent in the Philippines, which is also where their technical “support” is. The agent said they would request a Case ID be assigned and open an investigation, and that I would hear back in 1-2 business days. The next day, which was Saturday, I received an e-mail with a case ID number, and a link to fill out the customer service form. There was space to provide details of what the issue was as well as the sensor serial #. Before I could submit the form on Sunday, I received another e-mail saying that if I didn’t respond within 24 hours, they would consider the case closed. I submitted the form. The Stelo/DEXCOM system, acknowledged receipt of the form, and again said I would hear back in 1-2 business days. 8 days later I still had not heard back, so I again went through the Customer Service rig-a-marole, to finally contact a live agent. They were polite and apologetic,and they requested a “reinvestigation” . I received an e-mail later that day saying, my “customer service issue could not be validated” (whatever the hell that means), and that they would not replace the faulty sensor. I contacted customer service AGAIN, and asked what “could not be validated” meant. I was told the “computer investigation” said the signal came back after 10 mins. I told the agent that was not correct. The app said “Signal Loss” and the signal NEVER came back. I checked multiple times a day for the remaining time the sensor was supposed to be working. Never came back. I asked if there was anyway they could just replace the sensor anyway, and was told that it was not possible for her to override the computer’s decision. I told her once again that the “computer investigation” was incorrect, and that there was no communication between the sensor and the app on my phone, after the initial signal loss and that the signal never came back. I was told that they could not manually issue a request to replace the sensor. For what it’s worth, there also seemed to be no mechanism to attempt to re-pair the sensor with my phone, or the app installed on my phone. While it was working, the app/sensor worked okay. Be aware, the sensor DOES NOT measure actual blood glucose. It measures the amount of glucose in your interstitial fluid in your tissues, just beneath your skin. If you’re diabetic and/or need your exact blood glucose, this is NOT the device for you. I’m almost 70. Blood glucose was not diabetic level, but was higher than my doc would have liked on my last 2 physicals. My wife is an RN, and thought these might be a good indicator of what affected my blood glucose and by how much. The accuracy is roughly + or - 10%. Just be aware of that. It’s more for blood glucose trends than actual, accurate blood glucose, so if you’re diabetic and need exact blood glucose, you probably don’t want to rely on this product. The customer service for this product is EXTREMELY WEAK in my opinion. Let’s face it, we paid Amazon roughly about $110 for a two pack of these sensors. The manufacturer probably pays around $10-15 per sensor. The fact that they refused to acknowledge a faulty sensor and wouldn’t replace it tells me all I need to know. Yup, you guys got me for $110, and saved $10-15 on replacing a sensor, so in theory, you got me, ONE TIME, for $125, but I will never again by ANY product associated with Stelo/DEXCOM, and I will discourage family and anyone else who is considering it, from purchasing one of their products. For what it’s worth ; out of curiosity, just checked other reviews of this blood glucose monitor. They actually have a higher percentage of 1 star reviews than 5 star reviews. What does THAT tell you. AVOID THIS PRODUCT !!!! WOULD NOT RECOMMEND/WOULD NOT BUY AGAIN/ABSOLUTE CRAP ! ... show more
Reviewed in the United States on August 26, 2025 by TracyF
    • great tool if you know its limitations
Size: 2 Biosensors
A great tool for seeing how foods and your activity and sleep impact your body's unique handling of glucose. I've had no issues with these monitors whatsoever beyond the challenge of the initial setup of the app on my phone. (Follow every single technical set up instruction or it might not work for you. You need a functional internet browser installed on your phone for it to work too.) I think users might get frustrated with the monitor not reflecting 100% blood glucose level accuracy at any given time, and need to understand how this monitor works and what it does and does not do. It can vary by up to 20 points from a finger prick you might do, but also keep in mind the monitor is reporting your interstitial blood glucose level and there's an approximate 15 minute delay between those readings lining up. Personally my Stelo has consistently been within 10 points or less accurate at any given time. For some, exercise is a stressor which raises your glucose levels, for others it will reduce your levels, and for others it depends on the day. I know this technology can be sensitive and sometimes not work correctly but I think at least half of the negative reviews here may stem from folks not understanding the inherent limitations of this monitor and/or how blood glucose actually fluctuates. ... show more
Reviewed in the United States on January 27, 2026 by Amazon Customer

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