Greater Goods Digital Body Composition Scale, Wifi, St Louis, And Water Weight. A+ Content InsertMeasures weight plus body fat, BMI, muscle mass, water weight, and bone mass. Extra-large, backlit LCD screen. Scale calibrates itself automatically?just step on to weigh yourself, and the scale will turn off after you finish. Auto user detect supports up to 8 different users. Non-slip, scratch-resistant feet. 4 precise weighing sensors ensure a resolution of +/- 0.2 lb/0.1 kg. Large, tempered glass weighing surface holds up to 400 lbs. 4 AAA batteries included. NOTE: Do not use if you have a pacemaker or another medical electronic implant, or are pregnant. Not indicated for use by children under 10 years of age. A Premium Choice: Between the design and quality, you?ll know why this is one of our best-selling scales. Connecting via Bluetooth with your smart phone in seconds?no pairing necessary?to provide the most accurate readings, your goals are within reach, and this scale will help you get there. The Freshest Features: All of the qualities you need and expect in a smart scale, and a few you had no idea you did. Of course there?s a tempered glass top and free app, working in tandem to track all metrics, including: weight, BMI, body fat, muscle mass, water weight, and bone density. Simple And Stylish: Never let a scale cramp your style again. The simplistic, modern design of this smart scale fits right in with the decor of even the trendiest bathroom. You won?t have to hide it in the cabinet like every other scale you?ve owned. True Support: Our friendly team in St. Louis are industry experts at-the-ready to assist you with any questions that might arise about your smart scale. We take pride in our work and want you to have the best experience from beginning to end. Xfinity customers: Unfortunately, our Wifi scale is not compatible with Xfinity routers at this time