I'm type 1 diabetic and to have this CGM system really helps and make a life of a diabetic so much easier. Dexcom G6 Continuous Glucose Monitoring (CGM) System, make better diabetes treatment and diabetes management decisions with zero fingersticks and no calibrations. The Dexcom G6 lets you see your glucose numbers — with just a quick glance at your smart device or receiver. Get alerted when your glucose levels are heading high or low.