Computer hardware; Computer hardware and software system for tracking people, objects and pets using GPS data on a device on the tracked people, objects and pets; Computer hardware and software systems for wireless data communication for tracking, displaying and managing information regarding activity levels, nutrition, health and fitness for the purpose of human and pet healthcare; pedometers; altimeters; multifunctional electronic devices for displaying, measuring, and uploading to the Internet information including time, date, heart rate, global positioning, direction, distance, altitude, speed, steps taken, calories burned, navigational information, changes in heart rate, activity level, hours slept, quality of sleep, and silent wake alarm; computer software for wireless data communication for receiving, processing, transmitting and displaying information relating to fitness, body fat, body mass index; computer software for managing information regarding tracking, compliance and motivation with a health and fitness program