The principle of step counting: the watch has a built-in acceleration sensor, and the data detected by the acceleration sensor is then combined with the algorithm and the basic information of the human body, which is ultimately converted into information such as the number of steps and consumption.
Factors affecting the number of steps recorded by the watch:
1. Because the principle of the watch to measure walking distance is based on your height, gender and weight to estimate the length of your step, and then multiplied by the number of steps taken by the individual to arrive at an estimated value;
2. Because the step length will vary from person to person, maybe the same height, gender, weight of the person’s step length will be different, so the final calculated value will also be a large error;
3. The accuracy of counting steps, that is, the number of steps, there are many uncertainties, with each person's behavioral habits will have a great relationship, such as the amplitude of the arm swing walking habits, etc., and the human body activities more scenes (such as walking, riding in a car, driving, bathing, etc.), arm movements are more complex (such as keyboard taping, moving the mouse, lifting and pulling the object, etc.);
4. It is because of the above reasons that the final distance calculated by the watch is also an estimated value, the watch can not be used as a professional measurement tool to measure the distance. We will continue to optimize the software algorithm to calculate a more accurate data.