Measure your heart rate and see a snapshot of your body composition each time you step on the WW Heart Rate Scale by Conair. The smart battery-operated scale uses bio-impedance analysis (BIA) technology to read your heart rate and measure body composition including: body fat, body water, bone mass, and muscle mass. The body analysis monitor also calculates body mass index (BMI), providing you with another key tool to help you maintain your health and fitness. Customize the scale to measure and display data for up to 9 users simply by assigning a user number, then inputting basic user data (gender, height, and age). Results appear automatically on the high-visibility 1.5 in. (39 mm) blue backlit LCD digital readout. The WW Bluetooth Heart Rate Scale measures up to 400 lb. (182 kg) in 0.1 lb. (50 g) increments. Sturdy and stylish with an 11.8 in. x 11.8 in. (300 mm x 300 mm) square platform with a 0.9 inch (23.5 mm) rise and sleek contours, this high-tech scale has modern appeal that elevates the look of any bathroom. Monitor your fitness by measuring 6 body analysis results plus weight with precision Conair technology and the WW Scales by Conair smart app to help motivate you to be your healthiest self. The Free WW Scales by Conair app is an easy-to-use, interactive, and fun way of tracking your measurements — including Heart Rate. See everything at-a-glance on the dashboard, go in-depth with graphs and charts, and earn badges along the way! Automatically sync your weight to the WW member app if you are a subscriber, or sync your measurements to Apple Health, Google Fit, or other health and fitness apps.