How Do Smart Wristbands and Watches Count Our Steps?


Every smart device with a pedometer feature; It calculates for us how many steps we take during the day, how many floors we climb, even how many calories we spend while doing these. Let’s examine how they did this together.

Today, we use smartphones and smart devices for many purposes throughout the day. These devices, which are included in our lives and even change our way of life, contain many features. One of them is the pedometer feature. Any smartphone or wearable smart device; the user needs to specify physiological details such as weight, height and gender. This personalization is created by the device. data processing It helps.

Actually, pedometer has been used for a very long time. The pedometer, which was first used by mappers in the 1600s for direction finding, has completely changed its function today. It is not known exactly who invented these devices, which have been around for so long. One of the rumors that he may have invented the pedometer is one of the scientists. Leonardo da Vinci.

How do smart watches count pedometer?

smart watch sensor

Smartphones and wearable devices can control body movements in all directions. 3-axis accelerometer they perceive through constantly. The data are always recorded while the device is running and being used by the user; This allows users to track whether they are walking, running fast or standing still. The devices save all this data for processing. Since the devices collect information about the user before, they work through a personalized algorithm. Thus, we can access information such as how many calories we burn or how many floors we climb while walking or running.

The devices generate more information based on these details, as they also classify movements according to their types. An example of this information is when the user is walking, changing from device to device. average pulse rate, oxygen level in the blood and we can give the tempo of the user. Nowadays, the altimeter, which you can calculate your height, the height of the mountains you climb, or even the number of stairs you climb up and down during the day, is also included in most smart watches and wristbands.

The engineering behind a single count (in its simplest form):

smart watch

Military-grade accelerometers are used in most smartwatches / wristbands and phones. The data coming to these accelerometers calculate the user’s motive forces. The calculated power is then Metabolic Equivalent converting to a named parameter.

The converter, called MET, is customized according to the characteristics of the person such as height, weight and gender. Thus, it becomes easier to find the number of steps on the MET value. The equation for the accelerometer is very simple. When you generate the MET required for a step, your pedometer counts 1 step for you. The data collected is then translated into steps and activity and from them into calories and sleep quality, but some estimates are made along the way.

The devices we use today work much more smoothly and stably than the pedometer used in the past.

Thanks to pedometer sensors, smart wristbands process a lot of information:

apple watch

The pedometer feature on smart wristbands and watches is mainly used for fitness purposes. For this reason, it helps you monitor your smart device’s activities. Smart wristbands and watches are regular to your exercise activity goal within a certain number of days. to burn calories and even as much as you set and your body needs drinking water It also helps to set goals such as.

When smart device users who want to lose weight enter this information into their devices, smart wristbands, watches and phones can burn the person during the day. gives the message that they consume less calories and calculates the exercise time to be done during the day. People can be motivated by the data recorded by the device while reaching the goals they set.

Smart watches also contribute to scientific research:

smart watch sport mode

Through smart watches and wristbands used by individuals and having access to most of their own information, users can also assist with research studies conducted on large numbers of people. In an experiment or research, while a large number of people cannot be accommodated in the area of ​​the experiment, people using smart watches and wristbands With the data, researchers have the opportunity to examine the data collected for a much larger target group.