Nike+. This sleek metallic device is accurate to 100 grams -- oh yes, it's metric, like it should be -- and conducts a body mass analysis that can tell you the uncomfortable truth, should you care to know it. Accessing progress data can be done via a free iPhone app or the company's website, which is also the best place to plop down the €129 ($184) entry fee. And don't tell us you're not interested, somebody is buying up all those Wii Fit boards and it sure as hell isn't us. Video after the break.
Update: Withings tells us that pound measurements are also available for you eccentric old schoolers, and September should see a US release priced at $159, so good news all around.
[Via Chip Chick]