Fitness Gadgets
WII FIT, $89.99 (Wii system sold separately, $249.99).
Unlike video games that just work your finger muscles, the Wii Fit actually tones your core. As you stand on the sensor board, slow, controlled motions — no "Dance Dance Revolution" feet here — make your look-alike avatar break a sweat in more than 40 different ways, including mastering a hula hoop, doing yoga, weaving through a ski slalom, or head-butting an incoming soccer ball. The real motivator? The system charts goals, heart rate, BMI, and "fit credits" for up to eight people, so you can compare progress with your friends — and even compete. —Sarah Z. Wexler