similar to a freestyle libre the dexcom g7 n9w has a built in transmitter and smaller size. and can link to a garmin or apple watch for use in cycling running sking triathlon and endurance sport nutrition is important. like supersapiens below are more details Dexcom G7 Sensor Enjoy simplified glucose monitoring with the Dexcom G7 CGM system! Get real-time glucose readings direct to your smartphone or smart watch, no finger pricks required! Plus, with its predictive insights, you can make smarter decisions about food and activity in the moment to take charge of your diabetes. Get your diabetes game on-point with Dexcom G7! Made for all types of diabetes The Dexcom G7 is the only integrated continuous glucose monitoring system that is cleared for use during pregnancy.  Its advanced technology allows continuous glucose readings, with alerts and historical trends, to help manage type 1, type 2, and gestational diabetes. Proven Results you can count on Experience fewer highs and lows with the Dexcom G7 Sensor (1-Pack). Proven to lower A1C, it helps you stay within your ideal glucose range with personalized alert notifications. Monitor your progress with the Dexcom Clarity app, provides a projected A1C in as little as two weeks. Spend more time in range, feel better and be healthier. More comfortable discreet Tired of bulky sensors?Try the Dexcom G7 Sensor -now 60% smaller!! Its discreet size and comfortable upper-arm placement- Nike hoka asics adidas trek specialized