Recently, I watched the movie Love Saint on the Internet and was attracted by one of the plots. At the beginning, "Deng Chao, the second younger brother," died suddenly because his heart rate was too fast. So that the male owner always takes a smart bracelet to test his heart rate to prevent sudden death. Nowadays, white-collar workers are mostly sub healthy due to lack of exercise. How to make their lives healthier is a crucial matter. Here, I would like to talk with you about this bracelet to make life more healthy - CoBand K4 smart bracelet.

First of all, thanks Love to play computer games Give me a try. Without saying much, let's take a look at this bracelet.

[Starting from packaging]

When I got the CoBand K4 smart bracelet of the Demon Lover, my first impression was that it was small. The color box package was very small, and the whole front shell was a Smart Band. It took a simple route.

Product parameters are pasted on the shell after packaging in both Chinese and English. You can see the main parameters and introduction of the display screen: 0.86 inch, battery capacity: 50mAh, accessories included in the whole product. Here, the product uses a 50mAh battery, with a life of 50 days and a normal use of 7-10 days. In the process of personal use, one week's use can be achieved.

When I opened the package, I really felt that the product was very small. The main unit was on the top, and the bracelet, manual and charger were under the compartment. In this way, when you open the package at the first time, you will be impressed with the product.

The mainframe is very small, and there is also a layer of protective film on the screen, which just covers the whole front. It was done carefully. The host has only one function key, through which various functions can be controlled.

Because I like "streaking", I tear off the protective film of the host. As you can see, the whole host looks more beautiful. Fortunately, the whole screen is very resistant to dirt. It works well without film.

There is a sensor on the back of the host. If it is removed and no longer worn, a green indicator light will be displayed. There is also a heart rate sign on the back. After all, the biggest feature of this product is to test the wearer's heart rate at any time. At the bottom, you can see two yellow metal pieces, which are used for charging, as will be mentioned below.

The TPU wristband used by the CoBand K4 smart bracelet of Demon Lover is good in both hand feel and visual effect. There are two small dots in the middle of the wrist strap where the host is placed, which can easily distinguish the placement direction of the host.

The wrist strap is fastened directly. There are many stripes on the buckle. It feels good, looks good and is slip resistant. The general effect of wearing the host and the bracelet on the hand is shown in the figure, which will not be repeated here.

Here are accessories, instructions and chargers. The instructions are in Chinese on the front and English on the back. In fact, there is no pressure for beginners to do blind exercises. Before using the bracelet, I thought it was USB cable charging, which was too young. This charger is a special charger for the host, so it must not be lost. It can be charged by inserting USB interface, and charging is indicated, as shown in the figure above.

[Performance and use]

The first time to use the CoBand K4 smart bracelet of Demon Lover requires Bluetooth connection with the mobile phone APP to synchronize the time and data. The connection is fast, and I have not encountered the problem of not being able to connect. This app can be downloaded by scanning the QR code of the manual directly, and supports Android and IOS systems. After the download is completed, it can be used by directly turning on the switch. The blue font on the screen is clear, and the display can be selected from the horizontal screen or vertical screen in the APP. The use of the bracelet mainly has several functions, such as detecting sleep (to be used with APP), recording time, walking steps, walking distance, calories consumed, receiving information, heart rate, etc.

The bracelet is very simple to use. You can view various data only by pressing the function key. First of all, the most basic and important function is time. There is date/time/power/Bluetooth connection status display on the main interface, and the time is consistent with the mobile phone.

Some people may think that the counting method of movement steps is the same as that of WeChat. One shaking of the device is one step. But the fact is not that the author shook the bracelet for many times, and the bracelet did not count the steps. Only after taking a few steps did the number of steps increase. Therefore, the calories consumed are also closely related to the number of walking steps, and these two data are relatively accurate.

The accuracy of heart rate was also tested. When the author did intense exercise, he found that the heart rate of the bracelet rose in a straight line. After a rest, the heart rate displayed on the bracelet fell. The data reliability is relatively high.

The host and bracelet are IPX6-7, and the general life waterproof is no problem, so it doesn't matter if you wash or even take off your shower. Now waterproof function is one of the necessary functions of the smart bracelet.

I also think the reminder function is very good. In addition to setting a vibrating alarm clock, the CoBand K4 bracelet can be set to receive SMS, WeChat and QQ messages through the APP. The function of reminding people to sit for a long time has also declined. The pictures or words sent by others on WeChat will be displayed. It is suggested that players with more information should not open this function, or their arms will be shaking all the time.

[Introduction to Demon Lover Platform]  

Both IOS and Android can scan the code to download the Amorphous APP. After opening it, the initial interface is very small and fresh, and the interface is very friendly. When entering the platform for the first time, users will be asked to input their height, weight and other basic information. In fact, I was disgusted with this kind of APP that had to input information before I started to experience it, but I felt that the character I designed was very powerful in the input interface, at least it would not make users feel disgusted, and I was more diligent.  

After entering, you can navigate through the tutorial. Because the whole product is designed to be simple, you can skip it directly.

The top of the main page is the data synchronization function, which can record the daily movement and sleep. In addition to the above functions, there are many other functions in the platform, such as firmware update, screen out time, and looking for a bracelet.

In addition to the synchronized data that can detect whether life is healthy or not, the platform encourages users to live a healthy life, and has made a sports pace ranking so that users can like each other. This is similar to WeChat sports, which encourages them to exercise more by means of friend ranking. There is also an achievement system. The accumulated steps will unlock various achievements. Make users willing to take the initiative to exercise in a social way.

The Android platform is similar to the IOS platform in terms of interface and function. Users can also customize their daily goals. The general contents are the same, so I won't repeat them here.

Summary

After a period of experience, it is not too hard to describe the CoBand K4 smart bracelet of the Demon Lover with all its aspects. In addition to checking the movement, it also has a reminder function and sports and social networking. Hardware+software to improve the user experience. There are many different types of products for Demon Lover. I hope we can have a chance to experience them in the future. During the whole trial process, I felt that the product was perfect, but there were still some shortcomings. When the iPhone 9.3 system used APP, there was a flash back phenomenon. I hope this bug can be repaired as soon as possible.

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