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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
Dexcom G7 is a low-profile, all-in-one glucose sensor/transmitter and warms up faster than other CGMs on the market. This sensor lasts for 10 days and sends real-time glucose readings to a compatible smartphone app or directly on an Apple Watch. No finger pricks or scanning is needed. Optional low and high-blood sugar notifications are available for this system.
FDA-approved for wear on the back of the upper arm for ages 2 years and older or the upper buttocks for ages 2-17.
MARD of 8.2%
Good to have. Tried and true. Backup or day to day. Fingersticks required.
Components
Dexcom G7 : 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.
Dexcom G7 : Receiver
Conveniently access glucose readings using a reader, smartphone, or directly on an Apple Watch. Phone app available for both iOS and Android devices.
Generic Meter : Lancets
Tiny needle called a lancet is used to poke the skin (on a finger or on your arm) to get a small sample of blood. The lancing device is packaged with the glucometer.
Generic Meter : Test Strips
The strips work with the glucose meters to “read” blood sugar levels. One box of test trips usually contains between 25-50 single use strips.
Meter : Glucometer
The meter measures the amount of sugar in the small sample of blood that is placed on the disposable test strip. Most CGMs require testing blood sugar with a meter to calibrate the CGM device daily.
Device Details
Overview
Small all-in-one sensor/transmitter with a quick warm-up period and can be worn in multiple areas.
Good to have. Tried and true. Backup or day to day. Finger-sticks required.
Affordability and Access
$$$$
No insurance coverage data. Provided by DME and/or Pharmacy.
$$$$
Most accessible. Available over the counter at all Pharmacies. Price range; $0-$200/month depending on insurance coverage.
Data Monitoring Options
Yes
Automatically and continuously sends data to the user’s Dexcom Clarity web-based cloud which is accessible by clinicians.
Limited Options
Data is available directly on the device. Some meters may be compatible with the Tidepool data management system.
Data View Options
Yes
Users must download the Dexcom G7 and Dexcom Clarity apps to view and share data. Both apps provide multiple data views, sharing options, and access through the clinician portal using a code from the user's device. Caregivers can use the Dexcom Follow app to view data.
Yes
Data may be viewed directly on the device. Some meters contain a built-in USB connection that allows information to be uploaded to a data management system.
Duration and Storage
10 Days
Sensors last 10 days. They are shipped 3 boxes at a time every 3 months – 9 sensors. Works at 50ºF – 108ºF
Daily
Meters can last several years with battery changes/charging, they're used daily and work between 65ºF-86°F
Vision / Auditory / Dexterity
YES text to speech
YES vibration alerts
3 sound sources
A LOT of dexterity needed
NO text to speech
NO vibration alerts
A LOT of dexterity needed
Patient Considerations
Active Lifestyle
Waterproof when submerged in 2.4 meters of water and must be within 20 (unobstructed) feet of the receiver or mobile device.
Must pause activity to check blood sugar.
Avoiding Highs and Lows
Custom alerts can be set for highs, lows, and rapidly rising or falling glucose levels. Trend arrows show the direction glucose is heading, with the rate of change.
Less data. Meters don't give as much blood sugar data as sensors do and require a high level of engagement and effort to avoid highs and lows.
Comfort
Low profile and low maintenance sensor application.
Meter supplies carried and requires visible blood.
Easy Insulin Dosing
Real-time data and alerts make dose adjustment easier.
Limited features. No info on blood sugar trends.
Easy to Use
No scanning required. Readings are sent directly to the mobile app every 5 minutes.
Large display. Device typically has large display numbers for easier readouts, and it's very simple to operate.
Fewer Fingersticks
Factory-calibrated sensor. Finger sticks needed for backup only.
Frequent fingersticks are unavoidable.
Privacy
Quiet Mode (Vibrate). All system alerts will vibrate when this setting is enabled. Urgent Low Soon and technical alerts will sound if not acknowledged.
No attached device for blood glucose monitoring.