I know what you're thinking and I thought the same thing too. But this little activity tracker is different from the others, I swear.
Withings' Smart Activity Tracker does just about everything the Fitbit, FuelBand and UP can do, like track the number of steps taken, calories burned, distance traveled and "quality" of sleep, but it also measures your heart rate and the number of strides run. All in a tiny little package (43.3 x 22.1 x 8.3mm) about the size of the Fitbit One or a generic flash drive. Oh, and it (supposedly) supports Android right out of the gate along with the last two to three generations of every iOS device.