Includes body water percent (not tested). Calculates BMI based on user profile. Includes muscle mass percent (not tested). Includes bone mass percent (not tested). WiFi connection optional. Supports multiple users. Display is lit. Has an app for data. Can optionally connect using BlueTooth. Optionally shares data with other apps. Can set a goal weight. 0.1 pound resolution. Turns on automatically when stepped upon. Automatically recognizes user.