Why is there always a green light flashing on the back of Lexin Smart Watch?

When the bracelet is testing the heart rate, the photoelectric heart rate sensor equipped with the device itself starts to work, so the back of the bracelet will flash green.

This watch focuses on sports function and is very suitable for runners.

The main functions are gait counting, Bluetooth listening to music, GPS real-time trajectory and exercise heart rate monitoring. All-weather display function; Intelligent notification reminder; There is also Alipay Express Payment.

Run for half an hour every day, push 200 messages and last for 5 days. The price is only 799 yuan, which is a very cost-effective choice for runners.

Extended data

main products

1, mambo watch is a smart watch released by Music 20 16 on March 16. The price is 399 yuan? Mambo watch is a musical sports watch designed for people who love fitness and running. It has a large oled display screen and maintains the original functions of step counting, call reminder and sleep monitoring.

2, equipped with independent PowerPulse? Dynamic heart rate technology, adding dynamic heart rate monitoring and running functions, can record the complete heart rate dynamic curve of the whole exercise process through motion compensation processing technology, making training monitoring more accurate and professional. There are also a variety of color straps to choose from.

strong function

1, sports watch. Two-in-one function: watch, decorative wristband.

2. Negative ion sports watches mainly use imported environmentally friendly and healthy silicone raw materials, plus negative ion powder formulated by Korea? (tourmaline) and germanium powder.

3. At present, the standard of similar high-quality products in South Korea and Japan has reached the negative ion concentration of 1700- 1900 ion /cc, which can change the negative ion content around the individual's body and make people wear it in rural areas for a long time to prevent ultraviolet radiation in the atmosphere, relieve fatigue and promote blood circulation.

4. Silicone watch is a registered product with original design patent and product appearance patent. The liquid crystal of the watch is written in popular fonts, with ultra-white backlight display and energy-saving mechanism design. All watches are made of imported environmental protection materials, and all watches have passed the waterproof test of 1ATM.

It is very different from ordinary electronic gift watch. In addition to negative ion content, it is more exquisite and practical, waterproof and shockproof. Another biggest advantage is its weight design. The whole watch weighs only 10g, making it the first choice for mountaineering, swimming and playing ball.

6. Sports watches that can continuously monitor the heart rate can preset the exercise heart rate interval. Users only need to manually set their own healthy exercise heart rate interval into the watch, and the watch will monitor the user's heart rate during the user's exercise and make an analysis in time. When the user's heart rate is lower than the user's preset value during exercise, the watch will automatically give an alarm to remind the user to increase the amount of exercise and enhance the intensity of exercise.

7. When the heart rate data monitored by the watch during the user's exercise is higher than the heart rate value set by the user, the watch will automatically send out a reminder message. At this time, users can consider reducing the amount of exercise or intensity before exercise to ensure that their exercise heart rate is controlled within an effective exercise range.

In addition, this watch does not need a chest strap or any auxiliary equipment, which is convenient for users to control and detect pulse and exercise in real time. After the exercise, the data can be displayed directly, which can maximize the training effect whether it is general fitness or professional exercise. Having such a watch is equivalent to having a personal fitness trainer on your wrist.

Main types

According to the types of motion sensors, sports watches can be divided into three categories: pedometer watches, GPS watches and heart rate watches. Of course, there are many kinds of non-professional sports watches.

1, pedometer watch

(1) The motion sensor of the pedometer is a 3D acceleration sensor, which can sense the 3D motion acceleration generated by human motion, such as walking and running, so as to record the number of steps in a unit time.

(2) Calculate the moving speed and distance of human body through the input step size, and calculate the consumed heat through the input weight. Its advantage is that it can be used for outdoor and indoor sports, is not affected by the weather, is very energy-saving, and can store sports data for several days.

2.GPS watch

(1) The GPS watch calculates the moving distance per unit time and the moving speed by receiving the satellite position signal WAYPOINT. The accuracy of position signal is determined by the strength and sampling rate of satellite signal.

(2) For example, the accuracy of the sampling rate of 1 sec is obviously higher than that of the sampling rate of 60 sec. However, too high sampling rate will lead to too fast battery consumption. Its advantage is that it can record the trajectory of movement and synchronize with the map.

3. Heart rate watch

(1) The heart rate watch measures the heart rate of the human body by sensing the heart current. Under different exercise intensities, the human heart rate is different.

(2) Internationally, the percentage of exercise heart rate to the maximum heart rate is divided into lightweight activities: 50-60%, aerobic exercise 60-75%, endurance training 75-85% and intensity training 85- 100%. Choosing different heart rate regions can achieve different training effects.

(3) Of course, the above three basic functions can also be combined with each other, such as heart rate meter, GPS heart rate meter and so on.

References:

Baidu Encyclopedia-Lexin Sports Watch

References:

Baidu Encyclopedia-Sports Watch