freestyle libre 2 device image
v go device

Summary

The FreeStyle Libre 2 is the thinnest, all-in-one glucose sensor/transmitter and requires scanning using a handheld reader or compatible smartphone with an app. This sensor lasts for 14 days 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 9.3%

V-Go is a convenient credit card-size patch pump that adheres to the skin and can be worn for 24 hours. This system is designed to be used with fast-acting insulin for people with type 2 diabetes who require 20, 30, or 40 units of insulin per day. Users can administer two units of insulin with every press of a button on the device. This device is a hybrid between injections and an insulin pump to allow for discreet dosing without the need for programming or multiple injections. 

FDA-approved for people 21 years of age and older with type 2 diabetes.

Components

Freestyle Libre 2 : Sensor

Freestyle Libre 2 : 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 2 : Receiver

Freestyle Libre 2 : Receiver

Conveniently access glucose readings using a reader, smartphone, or both. Available for both iOS and Android devices.

V-Go Patch : Patch

V-Go Patch : Patch

Wearable insulin patches come with reservoirs and directions for application. They can be applied on the abdomen.

Device Details

Overview

All-in-one glucose sensor/transmitter with low and high blood glucose alarms can be worn on the upper arm.

Convenient, discreet, and simple use. 

Affordability and Access

$$$$
Widely covered. Provided by pharmacies. Price range; $0-$100/month. Often the cheapest and easier to access sensor. 

$$$$
Widely covered for insulin-dependent type 2. Supplies provided by DME or pharmacy. Price range; $0-$250/Month.

Data Monitoring Options

Yes
After each sensor scan with the mobile app or reader, data is automatically sent to the user’s LibreView account which enables sharing with HCPs and caregivers via the LibreLinkUp app. Data upload is possible with Glooko and Tidepool data-management systems.

No Options

Data View Options

Yes
Freestyle Libre 2 app 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. 

No Options

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.

24-Hours 
Patch can be worn for up to 24 hours and works in most temperatures (not for use in hot tubs, saunas, or freezing conditions). Does not require batteries or recharging.

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

Water-resistant for up to 3 feet deep for 30 minutes and light on the body, does not get in the way of activity. The reader must be within 1.5 inches of the sensor to scan it. 

Limited Adjustability. No way to adjust long-acting insulin for higher activity on the fly, but the device is water-resistant. 

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 requires manual dose adjustment and limits the ability to adjust insulin levels throughout the day. 

Comfort

Low profile sensor and small adhesive.

Free of tubing. Patches do not have tubing, but it must be worn in areas that are easy to reach for insulin dosing. 

Easy Insulin Dosing

Scanned sensor trends can be used for dose adjustment.

Simple with few steps. 24-hour bolus range: up to 36 units per 24 hours, doses in 2-unit increments. Preset basal rate of 20, 30, or 40 units per 24 hours.

Easy to Use

Requires scanning. Self-application and manual scanning are required. Easy self-application.

Simple with few steps. Patch is replaced every 24-hours with insulin administered at the click of a button. 

Fewer Fingersticks

Factory-calibrated sensor. Finger-sticks needed for backup only. 

Frequent finger-sticks are required.

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. Bulkier patch pump, but not as noticeable as injections. Bolus button can be used discreetly through clothing.