Glucose Sensor Comparison Chart

Below is a comparison of some of the key features of the glucose sensors available under the Health PEI Glucose Sensor Program.

Question Dexcom Libre Medtronic
How long does the sensor last? 10 days 14 days 7 days
Have high and low alerts / alarms? Yes Libre 2: Yes
Libre 1:  No
Yes
How often are calibrations required? (with finger stick testing)  Once at start up, and more frequently if you do not enter a sensor code No calibration required Twice per day minimum
(can be 3 to 4 times per day)
Where can I insert the sensor on my body? (may vary for young children) Arms, abdomen, legs, buttocks Upper arm only Arms, abdomen, legs, buttocks
Can I shower when wearing it? Yes Yes Yes
Can I go swimming with the sensor? Yes
(maximum  depth of 8 feet for up to 24 hours)
Yes
(maximum  depth of 3 feet for up to 30 mins)
Yes
(maximum  depth of 8 feet for up to 30 mins)
Are my glucose results shareable with family members?  Yes Yes Yes
Are my glucose results shareable with my health care providers? Yes Yes Yes
Does it work with an insulin pump?  Yes
(with Tandem pump)
No Yes
(with Medtronic pump)
Maximum allowable # of sensors per year under PEI program 39 sensors
(13 boxes)
26 sensors 55 sensors
(11 boxes)
How do I get a replacement sensor if my sensor falls out (or I have to remove it) early? Customer Service 
1-844-832-1810
(Option 1)
Customer Service 
1-888-205-8296
(Option 2)
Customer Service 
1-800-284-4416
(Option 1)
How long does the transmitter last? 3 months Not applicable 1 year
Where can I get a no-cost replacement transmitter? Local pharmacy or 
 Dexcom Customer Service
(see toll free # above)
Not applicable Medtronic Customer Service (see toll free # above)
How do I know if my smart phone / device is compatible with my sensor? If you can download and open the app on your device, the sensor is compatible If you can download and open the app on your device, the sensor is compatible If you can download and open the app on your device, the sensor is compatible






Websites for more information (listed in alphabetical order):
Published date: 
May 17, 2022
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