For context: continuous glucose monitoring (CGM) has largely replaced standalone glucometers as the primary monitoring tool in T1D — the Dexcom G7 provides a reading every 5 minutes, trend arrows, and alarms without finger pricks. The G7 achieves 8.2% MARD (mean absolute relative difference) — more accurate than most glucometers. Used alongside a backup fingerstick glucometer for hypoglycemia verification, CGM is the current standard of care for T1D. Prescription required; covered by most insurance for T1D.