Fitbit today has launched its newest wearable activity tracking device, the Fitbit Force, reports AllThingsD. The Bluetooth 4.0 wristband includes all the features of the popular Fitbit Flex activity wristband that was launched in May of last year, and adds new features such as a built-in altimeter that measures workout data such as stairs climbed, a bigger OLED screen, watch capabilities, and an "Active Minutes" feature that tracks the varying levels of exercise. A powerful Force for everyday fitness, this sleek wristband is with you all the
