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Select Device Freestyle Lingo Freestyle Libre 3 Freestyle Libre 2 Freestyle Libre 14 Day Dexcom G7 Dexcom G6 Dexcom Stelo Guardian Connect Medtronic Simplera Eversense Meter Omnipod Omnipod Dash Medtronic 780G Medtronic 630G Tandem t:slim X2 Bigfoot Unity Medtronic InPen Tempo Pen NovoPen 6/NovoPen Echo Insulin Pen Afrezza CeQur Simplicity Patch V-Go Patch Omnipod GO Patch Syringe and Vial Beta Bionics iLet Pancreas Control IQ with Dexcom Control IQ with Freestyle Libre Medtronic 780G with Smart Guard Omnipod 5 Tandem Mobi Tidepool Loop twiist DIY Loop Apple Series 6/7/8/9/10/SE (2nd Generation) Garmin vívosmart 5™ Garmin Venu Sq 2 Garmin Venu 3 Garmin vivoactive 5 Garmin Fenix 8 Garmin vivofit jr 3 Garmin Forerunner 165/265/965 Garmin epix (Gen 2) Garmin Enduro 3 Fitbit Ace LTE Fitbit Charge 6 Fitbit Inspire 3 Fitbit Versa/Versa 2/4/Versa Lite Fitbit Sense 2 Fitbit Luxe Google Pixel 2/3 Samsung Galaxy 4/5 Xiaomi Mi Band 9 Oura Ring Whoop 4.0 Withings ScanWatch 2 Withings ScanWatch Lite Pedometer 3D Pedometer
Summary
The FreeStyle Libre 3 is the smallest, thinnest, all-in-one glucose sensor/transmitter CGM and lasts 14 days. This sensor sends minute-by-minute glucose readings to a compatible smartphone app and only needs fingersticks as backup. Optional low and high blood sugar notifications are available for this system.
FDA approved for insertion on the back of the upper arm (ages 4 years and older).
MARD of 7.9%.
NovoPen 6 & NovoPen Echo Plus provides the smart addition of a personal injection log. Both pens are compatible with Novo Nordisk insulins in Penfill 3 ml cartridges and work with NovoFine single-use disposable needles. You can transfer your insulin dosing information from your smart pen to your device using the app.
Components
Freestyle Libre 3 : Sensor
Sensor uses a thin, flexible filament inserted just under the skin to measure glucose levels every minute. Push-button applicator allows sensor to be placed on the body in one step.
Freestyle Libre 3 : Receiver
Conveniently access glucose readings using a reader, smartphone, or both. Available for both iOS and Android devices.
NovoPen 6/NovoPen Echo : Sensor
Sensor uses a thin, flexible filament inserted just under the skin to measure glucose levels every 5 minutes. Push-button applicator allows sensor to be placed on the body in one step.
NovoPen 6/NovoPen Echo : Controller
Smart pen records daily injections and sends them to the compatible app by tapping the device with a compatible smartphone.
NovoPen 6/NovoPen Echo : Receiver
Smart pen and sensor readings displays dosage information directly on smart mobile device.
Device Details
Overview
Smallest, thinnest, all-in-one glucose sensor/transmitter with low and high blood glucose alarms can be worn on the upper arm.
Discreet and modern option for people using multiple daily injections.
Affordability and Access
$$$$
Widely covered. Provided by pharmacies. Price range; $0-$100/month. Often the cheapest and easier to access sensor.
$$$$
Sometimes covered. NovoPens are covered by some commercial insurance companies; typically, users pay $21 out-of-pocket copays for the eight-month device. Prices range from $0- $78. For those without any insurance coverage, a single pen price is $78.
Data Monitoring Options
Yes
Sensor automatically sends data to the user’s LibreView account which enables sharing with HCPs and caregivers.
Yes
Hold the dose memory of the pen straight against the Near Field Communication (NFC) spot on your device. Wait while your injection details are automatically transferred to a compatible app on your device. Compatible with multiple data monitoring platforms, including Glooko, MySugr, and Dose Check.
Data View Options
Yes
Freestyle Libre 3 app or Libre by Abbott provides glucose readings and alarms, multiple data views, the ability to share glucose data and real-time alarms with LibreLinkUp, and the ability to connect to a clinician's practice through LibreView.
Yes
Dose-related data can be viewed on the NovoPen 6 & NovoPen Echo apps.
Duration and Storage
14 Days
Sensors last 14 days and work between 50ºF - 113ºF. They are shipped in orders of 1-3 months at a time - which is 2-6 boxes at a time.
28-day pen (Compatible with 10-day or 14-day sensor)
Sensor lasts for 10-14 days depending on the brand, insulin pen lasts for up to 28 days. Pen has 800-injection dose memory and a five-year battery life. Sensor works between 50ºF - 113ºF and pens can be kept at room temperature for up to 28 days.
Vision / Auditory / Dexterity
NO text to speech
YES vibration alerts
A LOT of dexterity needed
NO text to speech
NO vibration alerts
A LOT of dexterity needed
Patient Considerations
Active Lifestyle
Water-resistant for up to 3 feet deep for 30 minutes and light on the body, does not get in the way of activity.
Light on body. Pens are easy to use and do not remain attached to the body, senor is light on the body.
Avoiding Highs and Lows
Optional glucose alerts for low and high glucose levels. Trend arrows show the direction glucose is heading, with the rate of change.
Limited customizability. System integrates the Dexcom G6/G7 or Libre CGM for high or low alerts but requires manual dose adjustment and limits the ability to adjust insulin levels throughout the day.
Comfort
Lowest profile sensor and smallest adhesive (about the size of two stacked U.S pennies).
Many components. Have to carry pens and pen needles. CGM is attached to the body.
Easy Insulin Dosing
Sensor trends can be used for dose adjustment.
NovoPen 6: The maximum dose is 60 units, and doses increase in 1-unit increments. NovoPen Echo Plus: The maximum dose is 30 units, and doses increase in 0.5-unit increments
Easy to Use
No scanning required. Minute-by-minute readings are sent directly to the mobile app.
Simple design. Replaces regular insulin pen. No additional devices to add on.
Fewer Fingersticks
Factory-calibrated sensor. Finger-sticks needed for backup only.
Factory-calibrated sensor. Finger sticks needed for backup only.
Privacy
Hypoglycemia safety alarm. Discreet size but built-in hypoglycemia safety alarm alerts users when glucose is below 55 mg/dl and is always on.
Hideable. Pens are portable but visible when in use. Frequent injections are unavoidable. View recommendations and data on a smartphone.