A fitness tracker is used by individuals to monitor their fitness. They manage their fitness by adding or eliminating exercises depending upon their individual target set by them or their fitness instructor. It helps to know which exercises are producing more effective results so that one can continue with it by doing more of it thus giving less time to other exercises. It also lets you know which exercises have helped achieve the desired results in the specific time frame. If more time is required for an exercise, it can be given more time accordingly in order to achieve the desired results.