Get accurate measurements for weight, weight trend, body fat percentage, bmi, skeletal muscle mass and more Sync with your garmin connect account via wi-fi connectivity to see your data, get trend graphs and more (requires the garmin connect app downloaded to a compatible smartphone) Sleek design features a high-resolution color display Up to 16 user profiles allow multiple daily weigh-ins and unique goal tracking for each user Battery life: up to 9 months; uses 4 aaa batteries (included) Included components: Index S2; 4 AAA batteries; 4 carpet feet; Documentation