CGM Device Comparison

Compare and contrast FDA-approved CGM systems to find what is right for each individual patient and your practice.

 

Personal CGM Devices

Device Name

Abbott Freestyle Libre 2

Frequency of Glucose Readings

Measures glucose every minute; records glucose level every 15 mins

Data Type

Unblinded

Approved Ages

≥ 4 yrs

Location for Placement

Back of Upper Arm

Sensor Life

14 days

Calibration

No

Warm-up Time

1 hr

Potential Interfering Substances

Ascorbic acid

Alerts/Alarms

Yes

Information for Patients

LINK

Information for HCPs

LINK

Abbott Freestyle Libre 14

Measures glucose every minute; records glucose level every 15 mins

Unblinded

≥ 18 yrs

Back of Upper Arm

14 days

No

1 hr

Ascorbic acid; salicylic acid

No; trend arrows

Dexcom G6

Glucose readings sent to receiver/smart device every 5 mins

Unblinded

≥ 2 yrs

Abdomen (Also, upper buttocks for patients 2-17 yrs)

10 days

No

2 hr

Hydroxyurea; high dose acetaminophen (> 1 g every 6 hrs in adults)

Yes

Medtronic Guardian Connect

Glucose readings sent to smart device every 5 mins

Unblinded

14-75 yrs

Abdomen or back of upper arm

7 days

Yes (After initialization, at least every 12 hrs)

2 hr

Acetaminophen or paracetamol

Yes

Senseonics Eversense

Glucose readings sent to smart device every 5 mins

Unblinded

≥ 18 yrs

Back of upper arm

Up to 90 days

Yes (After initialization, twice per day, 10-14 hrs apart)

24 hr

Antibiotics of the tetracycline class

Yes

Professional CGM Devices

Device Name

Abbott Freestyle Libre Pro

Frequency of Glucose Readings

Records glucose level every 15 mins

Data Type

Blinded

Approved Ages

≥ 18 yrs

Location for Placement

Back of Upper Arm

Sensor Life

14 days

Calibration

No

Warm-up Time

1 hr

Potential Interfering Substances

Ascorbic acid; salicylic acid

Alerts/Alarms

No

Information for Patients

 

Information for HCPs

LINK

Dexcom G6 Pro

Glucose readings sent to receiver/smart device every 5 mins

Blinded or unblinded

≥ 2 yrs

Abdomen (Also, upper buttocks for patients 2-17 yrs)

10 days

No

2 hr

Hydroxyurea; high dose acetaminophen (> 1 g every 6 hrs in adults)

Yes (unblinded)