Some people use a favorite pair of jeans, others a tape measure. I’ve always been a fan of the scale as a means of monitoring my weight.
When I was pregnant, I even kept a paper chart and pen inside the medicine cabinet to track my weight gain (hey, whatever works). That’s why I was intrigued by the Withings WiFi Body Scale. It tracks weight, lean and fat mass, and BMI (body mass index) and sends them to a secure web page or your iPhone.
The scale uses bioelectric impedance analysis (BIA) to calculate the weight of lean and fat mass instead of a percentage. So drinking a lot of water shouldn’t throw it off.
The 0.9-inch thick scale will automatically recognize and track up to 8 people. Recognition is initially based on the age, height and weight you input for each person, and then on the last weight and BMI readings.
If two people in your family have similar measurements, you can select your profile by checking the display and leaving a foot on just the corresponding side of the scale.
Withing WiFi scale: 
