Tanita AM-121E allows you to conveniently track your fitness activity 24/7. It comes with a 3-Axis accelerometer that detects movement in 3 dimensions and measures your Total Energy Expenditure (calories burned), steps taken, distance traveled, and time spent in different activity intensities. The device is designed to clip onto your waistband or can be worn around your neck. Apart from tracking your daily activity, you can also set it to wake you up with a silent, vibrating alarm, use it as a stopwatch, and set it to remind you to move if you've been inactive for a period of time.