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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.

  • Based on 2,097 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Thursday, Dec 11
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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. ©2025 Dexcom, Inc. All rights reserved. MAT-5936. LBL-1005853 Rev 001 & LBL-1005854 Rev 001. 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


Product Dimensions ‏ : ‎ 1.1 x 0.9 x 0.2 inches; 8.78 ounces


Item model number ‏ : ‎ STP-XN-003


Batteries ‏ : ‎ 2 Lithium Metal batteries required. (included)


Date First Available ‏ : ‎ January 24, 2025


Manufacturer ‏ : ‎ Dexcom, Inc.


Best Sellers Rank: #1,024 in Health & Household (See Top 100 in Health & Household) #1 in Blood Glucose Monitors


#1 in Blood Glucose Monitors:


Customer Reviews: 2.9 2.9 out of 5 stars (2,216)


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Dec 11

This item is non-returnable:

Non-returnable due to Product safety reasons

View our full returns policy here.

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Top Amazon Reviews

    • 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
    • Very accurate and easy to use
Size: 2 Biosensors
I have been using Stelo for 5 months. I am shocked by the negative reviews, which I admit gave me pause before I went ahead and took the plunge. Perhaps some are not carefully reading or following the instructions. The app includes step-by-step instructions for applying the sensor, and it is not difficult at all, although I do need assistance from my wife to get the overpatch stuck on well. True, for the first few hours after applying the sensor, the readings are all over the place and not accurate. The instructions warn of this. I have gone through 10 sensors and have not had a defective one, nor have I had one that did not last 15 days. I have tested the Stelo against my glucose monitor using finger- prick and it is very accurate. Keep in mind that the Stelo reports readings every 15 minutes, so you have to compare your meter reading to what Stelo says 15 minutes later. I have also checked Stelo against blood glucose lab results, and again Stelo gives the same result as the lab test. Finally, I just got HgA1C done and the result was dead-on with what Stelo says my average blood glucose has been for the last 90 days (in addition to the Stelo app, there is also the Clarity app, which gives you more data, including something called GMI, which is not the same as HgA1C, but seems to have some equivalence. My 90 day GMI was 6.6, and my lab result for HgA1C was also 6.6).So in my experience Stelo is highly accurate. The most important thing I can say is that, by giving you almost instant feedback as to how what you are eating or doing affects your blood sugar, you can make adjustments and see if they help keep you in range. For example, I have been able to figure out how much pasta I can eat without causing a crazy spike, and that adding some protein and a little fat to the carbs smooths out the rise in blood sugar. So more pasta if I have a sausage or meatball with it! I can have ice cream, just less of it. You can experiment with amounts until you get it right. A pleasant side effect is that all this awareness of what I’m eating has caused a 14 pound weight loss in 5 months, without feeling like I’m dieting. I highly recommend Stelo. As I said, I’ve had no issues with it (other than the price), but if the negative reviews make you nervous, I would still recommend trying any brand of CGM you’re more comfortable with. It really is a game -changer! ... show more
Reviewed in the United States on November 25, 2025 by John From New York

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