preface

  With the progress of society and the continuous improvement of people's living standards, eating, drinking, and having fun meet the needs of young people in every way, obesity has become a major problem that plagues many young men and women. Originally handsome young people, beautiful girls, have become obese people who do not want to see people because of too much meat. Farewell to obesity has been a dream of many people, but it is not a day's work to completely solve obesity. It will take a long time of perseverance to achieve their desired goals. So the smart bracelet can help us solve many problems, such as step counting function, heart rate monitoring, calorie consumption, walking distance, etc. There are many on the market, and the author obtained a "Demon Lover CoBand K4 smart bracelet" here.

First of all, thank you Love to play computer games The crowd test gave me the chance to try out the "Demon Lover CoBand K4 Smart Band". After a period of trial, let's take a look at the differences of the "Demon Lover CoBand K4 Smart Band"?

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    Outer packaging

The outer package of "Demon Lover CoBand K4 Smart Band" is a relatively environment-friendly hard paper box, with the logo "smart band" on the front Simple and generous, the icon of "Love to Play" in the upper left corner is also very eye-catching (of course, this is not what the manufacturer does). Although the outsourcing done by the manufacturer is simple and generous, conducive to environmental protection, it is also a kind of frugality, but it gives people a big discount on their desire to buy, and I hope it can be improved.

On the back of the "Demon Lover CoBand K4 Smart Bracelet" is a detailed introduction of the product, such as the size of the display screen, battery type, input and output voltage and current, packaging list, etc. It is worth promoting that China and the UK have each other. After all, English is the universal language in the world, which can be a good long-term plan for export in the future.

Open the box, inside is the main body of the black K4 smart bracelet, which uses inlaid inner packaging to prevent unnecessary scratches caused by collision during transportation. This design is very conducive to the delivery of electronic products, which is a very good protection for electronic products.

"Demon Lover CoBand K4 smart bracelet" includes: host TPU wristbands, charging lines and instructions. At present, the smart bracelets on the market are no longer equipped with standard charging plugs, because all the mobile phone charging plugs we use now can be charged, and only need to be equipped with a charging line. This is a saving and thrifty move, which not only reduces the cost of the bracelet, but also reduces the waste of resources, and deserves our praise.

The "Demon Lover CoBand K4 Smart Bracelet" adopts 2.5D cutting process, oval appearance design, and the overall texture is very smooth. The white circle below the screen is composed of two concentric circles, which is a function key used to switch functions. The overall screen is high in the middle and low on both sides, which is also the need of the design. The installation operation is very simple. Just insert the black main body into the white TPU wrist strap to wear it.

The charging plug and data cable of the "Demon Lover CoBand K4 Smart Bracelet" are integrated into one, and no adapter is needed. The method is simple, just snap it on. Generally, the charging time is more than one hour, and it can be standby for 50 days. It can be used for 10 days normally.

The white wristband of the "Demon Lover CoBand K4 Smart Bracelet" is made of TPU material, which is as lifelike as a feather. The wristband can be disassembled by itself, and it is also made of sweat proof treatment, which is resistant to dirt and corrosion. However, the material is somewhat hard, which will cause different degrees of discomfort if you wear it for a long time. The bracelet will fall off if you wear it with too much force. It is recommended to correct it during the subsequent update.

The back of the button of the "Demon Lover CoBand K4 Smart Bracelet" is a convex heart rate sensor, which can well test the heart rate. The white belt, the black buckle and the main body of the black bracelet form a black and white matching, which is extremely beautiful and unique.

Although the "Demon Lover CoBand K4 Smart Bracelet" can play the role of environmental protection and frugality in packaging, it is a little lacking in eye-catching. The design of the appearance is simple and fashionable, especially the 2.5D oval design, which adds a bit of sportiness.

Experience rich basic functions

The CoBand K4 smart bracelet of the Demon Lover adds the function of raising the wrist to light the screen. The wrist is raised and the screen lights up automatically, which facilitates the use of one hand The K4 smart bracelet has a large 0.86 inch screen. Compared with other bracelets, the icons displayed by the Demon Lover are very large, with normal distance The view is very exquisite.

In addition to the larger display content, the screen of the Demon Lover CoBand K4 has the most advantage over other bracelets in terms of brightness. The brightness is very sufficient. The display content can still be seen clearly on the blue and black background outdoors, and it is still difficult to see clearly under strong light, but it is a little better than other bracelets.

The CoBand K4 smart bracelet of the Demon Lover displays time and power by default. By clicking it, you can switch the display of steps (there will be dynamic footsteps), calorie consumption (there will be burning flames), heart rate (a heart shape) and other information, and each corresponding icon has related animation, which is pleasing to the eye.

Rich APP applications

The "Demon Lover CoBand K4 smart bracelet" requires APP connection. The download can scan the QR code on the manual, and you can also download and search for "Demon Lover" in the mobile application software. The bracelet needs to be bound for the first connection. The bracelet and mobile phone are connected through Bluetooth, and the bracelet will be automatically updated after connection.

The Demon Lover APP is still very simple. The homepage will only show you very simple information. The top is kilometers, calorie consumption and steps, the bottom is health and activity, health is sleep, heart rate and weight, and activity is heart rate testing and other activities. Click on each large section to see a more comprehensive data histogram or trend chart. The author likes this simple design. We open the APP mainly to take a look at simple data. There is no need to confuse the home page with detailed data. If you want to see it, just click it.

The bracelet icon on the top right of the APP homepage is the basic setting of the bracelet, including the reminder of sitting for a long time: you can set your own time, which is more suitable for office workers; Bracelet alarm clock: this function can make you not worry about missing the alarm clock and being late for work; APP message notification: you can see the message notification by hanging QQ and WeChat through the bracelet. Of course, you can add applications independently, which is very convenient to use; Intelligent loss prevention: you don't have to worry about losing your mobile phone; As the name suggests, the author has not explained much about the electric reminder, SMS reminder and light off time.

Experience summary

From the perspective of the big market of smart bracelets, the "Demon Lover CoBand K4 smart bracelet", on the whole, has the necessary time display, heart rate detection, sleep monitoring, message reminder and other basic functions of the bracelet, but the Demon Lover CoBand K4 has its own characteristics, larger screen, longer endurance and more fashionable appearance, combined with the price of 129 yuan, It will certainly occupy a place in the mature sports bracelet market.

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