That's why it's essential to be as detailed as possible when inputting information, such as the food that you have consumed or the activities you have participated in throughout the day. The accuracy of your fitness tracker will depend largely on the information that you manually enter into it. The data collected by the accelerometer will be used by the algorithm when calculating the number of calories burned. Your smart watch or fitness tracker will have an accelerometer installed in it, and this will track your activity level each day. This information will be used to calculate your personal basal metabolic rate, and then that rate will be used in your device's algorithm to calculate the number of calories you are burning each day. When you first set up your fitness tracker, you will enter basic information about yourself, including your age, gender, height and weight. Here are a few factors that your fitness tracker will take into account when measuring how many calories you have burned during a specific time period: However, you may be wondering how they actually track the calories that you consume and burn each day.

If you are on a mission to count calories, then a fitness tracker can be one of the most useful tools at your disposal. How do fitness trackers measure calories burned? But, how do fitness trackers work? Our guide explores their various functions and the accuracy of these devices. These devices range from smart watches to purpose-built health trackers, and they are capable of tracking a variety of data that allows users to better understand their own habits and activities. Technology makes it easier than ever to stay healthy, but how do fitness trackers work and how accurate are the measurements they take?įitness trackers have become the go-to accessories over the last several years, and it seems that everyone is wearing some sort of smart device to help them reach their health goals and maintain healthy habits.

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