The rise of continuous glucose monitors

According to the Center for Disease Control and Prevention, more than 37 million people in the U.S. have diabetes. Diabetics must monitor their blood sugar, a task traditionally done with glucometers by pricking your finger over and over again for drops of blood. But over the last decade, technology like continuous glucose monitoring has been on the rise. Abbott and Dexcom are the two most dominant players in the space. CNBC spoke with both companies about the technology inside CGM's.