Tracking weight regularly is a great motivational device if you are trying to lose weight. Withings makes that simple. You set the scale up to connect to your wi-fi network and that's it. Every time you stand on it, the scale wirelessly transfers your weight and BMI to the cloud. You can view your weight progress on the computer or better still you can use the well-designed iPhone app.

It supports multiple profiles for members of a family and automatically posts the weight to the right profile.

I find its weight trend chart to be the best way to track weight while ignoring the daily ups and downs that are so painful. All you look at is the trend!

One great thing the Withings guys have done is to integrate this app with all the leading Health and Fitness apps out there such as  Runkeeper, MyFitnessPal,  and Jawbone UP.  It also acts as a really nice compiler of information from other services with excellent UI.

Overall, Withings scale and App make it an excellent product specially when used with other essential Health and Fitness apps.