Also known as a sports watch sports watch, you can establish a Bluetooth connection between the phone with the person wearing the motion data is transmitted to the mobile terminal.
It can be divided into three categories according to the type of its motion sensor: pedometer watches, GPS watches, heart rate watches. Of course, there are many non-professional sports watch.
Pedometer watches
Pedometer watch its motion sensor is a 3D acceleration sensor, can sense the movement of the three-dimensional acceleration of human movement such as walking jogging when generated, which can record the number of steps per unit time. By step to calculate the speed of the body's movement, distance, and by entering the weight to calculate calories consumed inputs. The advantage is that you can apply to outdoor indoor sports, protected from the weather and very low power consumption, and can move data storage days.
GPS Watches
GPS watch is by accepting WAYPOINT satellite signals to calculate the position of the distance traveled per unit of time, and calculate the speed of movement. The accuracy of the position signal by the strength of the satellite signal sampling rate to the level decision. Such as the accuracy of 1 second sampling rate is clearly better than 60 seconds sampling rate is higher. But the high sampling rate can cause the battery runs out quickly. The advantage is that you can record the movement of the track and synchronized to the map.
Heart Rate Watch
Heart Rate Watch is to use the body's cardiac induction current to measure the body's heart rate. High and low of the human body in different exercise intensity heart rate, the international movement of the heart accounted for the largest percentage of heart area into lightweight Events: 50-60%, 60-75% of aerobic exercise, endurance training 75-85% strength Training 85% -100%. Select a different heart rate zones can reach different training exercise effect.
Of course, the above three basic functions can also be combined with each other, such as heart rate pedometer table, GPS sports watch heart rate and so many combinations.
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