Table 1.

Comparison of Select Continuous Glucose Monitors

	Medtronic Guardian Sensor 3	Medtronic Guardian Sensor 4*	Senseonics Eversense	Dexcom G6	Abbott Freestyle Libre 2	Abbott Freestyle Libre 3
Sensor Type	rtCGM	rtCGM	rtCGM	rtCGM	isCGM	rtCGM
Age of Approval (years)	2+	7+	18+	2+	4+	4+
Subcutaneous or Implanted	Subcutaneous	Subcutaneous	Surgically Implanted Transmitter adhered to skin over implanted sensor	Subcutaneous	Subcutaneous	Subcutaneous
Duration of Wear (days)	7	7	Maximum 180	10	14	14
Calibration Status	User calibration with blood glucose meter at least 2x/day	Factory calibrated	User calibration with blood glucose meter 2x/day	Factory calibrated	Factory calibrated	Factory calibrated
Approved for Use for Insulin Dosing	No	Yes	Yes	Yes	Yes	Yes
Compatible in HCL System	MiniMed 670G, 770G	MiniMed 780G	No	Tandem t:slim X2 CIQ Omnipod 5 CamAPS** Diabeloop**	No	No
References for Table 1 information: (25, 138-140)

^*At the time of writing, CE marked in Europe but still under review for United States FDA approval.

^**System not available in the United States.

Abbreviations: rtCGM, real-time continuous glucose monitor; isCGM, intermittently scanned continuous glucose monitor; HCL, hybrid closed loop; CIQ, Control IQ.