Garmin Index™ S2, BlackAccuracy matters when it comes to your goals. WEIGHT View your weight in pounds, kilograms or stones and pounds. Plus, see differences between one weigh in and another. WEIGHT TREND See how your weight has changed during the past 30 days. Track longer trends in the Garmin Connect app. BODY MASS INDEX Get an accurate measurement of how your mass relates to your height to see if youre in a healthy range. BODY FAT PERCENTAGE Your body needs some fat to