Here's a scale that wants to act as your personal fitness trainer too. It will tell you how much you weigh and also what kind of activities you can do to maintain your current physique. Impressive!

The scale is $100, and it's still cheaper than any personal trainer. Using your personal information and the Harris-Benedict Equation—which determines a person's ideal calorie intake—the scale suggests one of 157 different activities to stay in shape, and how much of each you need to do.

[Hammacher Schlemmer]