Pedometers; altimeters; scales; multifunctional electronic devices for displaying, measuring, and uploading to the Internet and computer networks information including time, date, heart rate, global positioning, direction, distance, altitude, speed, steps taken, calories burned, navigational information, weather information, temperature, wind speed, changes in heart rate, activity level, hours slept, and quality of sleep; computer software for wireless data communication for receiving, processing, transmitting and displaying information relating to fitness, body fat, body mass index, and heart rate; Electronic monitoring devices incorporating microprocessors, digital display, and accelerometers, for detecting, storing, reporting, monitoring, uploading and downloading sport, fitness training, and activity data to the Internet, and communication with personal computers, regarding time, steps taken, calories burned, distance; computer software and computer application software for mobile phones and personal digital devices that provides tips, coaching, and personalized workouts, to improve the user's fitness level