The Garmin Index S2 is a Wi-Fi-enabled smart scale that provides detailed body composition metrics like weight, body fat %, BMI, skeletal muscle mass, bone mass, and body water %, syncing data to your Garmin Connect account for trend tracking. It features a high-resolution color display, supports up to 16 user profiles with automatic user detection, offers up to 9 months of battery life, and even includes a handy weather widget.