preface

The popularity of smart watches and smart bracelets, the decline in price, and the continuous improvement and increase in functions make us more and more exposed to different products. However, after using it for a period of time, does your smart watch or smart bracelet eat more dust in a certain place? Personally, the difference between the current smart bracelet and the smart watch in function has become less and less obvious. At most, it is the size of the display screen and the size of the head.

Most people buy smart watches or bracelets mainly based on curiosity and want to experience the feeling and functions of wearing them, such as pedometer function, heart rate measurement, remote control photography, etc. In addition to the difference in price, different smart bracelets and watches are also different in hardware configuration and some functions.

Lexin mambo watch is also a smart watch with OLED touch screen. In addition to the standard IP67 waterproof and dust-proof capability, step counting, call reminder and sleep monitoring functions, it also adds real-time dynamic heart rate monitoring and running functions.

Products:

1. With OLED touch screen, no physical keys on the whole body, convenient for operation

2. IP67 waterproof and dustproof capability

3. It supports steps counting, call reminding, sleep monitoring, real-time dynamic heart rate monitoring, running and other functions

4. The wrist strap is waterproof and anti-skid, and the body weight is light

5. Streamlined appearance design with slightly curved body design, good fit with wrist

Attention:

1. Heart rate measurement defaults to real-time measurement, and cannot be closed or set time interval

2. When shaking the arm, the counting will also change

3. The display screen is not a Memory LCD, and the content displayed on the screen cannot be seen clearly in the sun

4. No track related settings, no two-way search function

5. You cannot directly use the shortcut of QQ WeChat Weibo account login

Product experience

Compared with the squareness of Xiaohei 2, the Lexin smart watch is smooth, and the curved screen design around the body is quite fashionable. The highlight of the fuselage is that there is no physical button design, because the screen is a touch screen, which makes the overall look very simple. At the same time, because of the OLED material of the screen, the screen content can hardly be seen in the bright places outdoors, let alone in the sun. IP67 dust-proof and waterproof effect, you don't need to take it off to take a bath.

The strap on the end of the watch with the word "Mambo" can be removed, and the slightly curved USB charging interface can be seen. It is different from other wristwatch bracelets that use a special charger. It is more convenient to charge and avoids the trouble of using a special charger. The central bulge on the back of the watch is the module used to measure the heart rate. The heart rate sensor of Silicon Labs in Texas is used. The battery is 130mAh rechargeable polymer lithium battery.

This is more obvious. The USB charging interface has a large curvature, but it does not affect the normal charging. The slightly curved fuselage makes the device fit better with the wrist, but at the same time, the problem is how about the sweating and breathability.

The wrist strap is also made of medical grade TPU material, which is light and safe, but the color is lighter than that of the small black 2, and it is easier to get dirty, but it is convenient to clean.

The wrist lift light screen is turned on by default and does not need to be set. However, the display performance is slower than that of the small black 2, and not as fast as that of the small black 2.

Heart rate measurement, as the main highlight function of the current smart bracelet or smart watch, should be compared to try its accuracy first, and then compared after continuous measurement. Like most smart bracelets or smart watches with heart rate measurement, Lexin smart watches also use the green light measurement method in the photoelectric transmission measurement method, which is common on wearable devices. It is composed of two green wavelength light-emitting LEDs and a light sensor. Its principle is based on the change of light transmittance caused by the density of blood when it pulsates, It can continuously measure heart rate, including during exercise, calculate average heart rate, record real-time heart rate, etc.

From top to bottom and from left to right are the heart rate measurement results of manbo watch, Weloop Now2, iHealth BP7S and Samsung S5 mobile phones. It can be seen from the comparison that there is little difference between the 71 of the manbo watch and the 70 of the Weloop Now2. Compared with the finger measurement of the wrist sphygmomanometer and Samsung mobile phone, there is still some error, but there is little difference. The daily measurement results can be used as a reference.

The heart rate measurement of Le Xin smart watch is a bit strange. Because it defaults to continuous heart rate measurement, it records more heart rate information, which is displayed in the common way of heart rate graph. What is more useful is to be able to view the heart rate changes during exercise and adjust them appropriately. The following figure shows the running record page. The movement center rate can also be measured and recorded in real time. Here you can view the relevant values of step frequency and average heart rate.

For smart watches and smart bracelets, the accuracy of step counting is more important, because there was once a bracelet worn to sleep, and I walked more than 200 steps at night, which scared me into thinking that I had sleepwalking. Here we compare Weloop Now2 with Lexin Smart Watch.

The statistical table is as follows. The data is valid for the current measurement. Generally speaking, the smaller the error, the better. However, there will still be errors when the arm is raised and lowered in your measurement, so as long as the error is below 10, you can still accept it.

The group of data marked yellow at the bottom of the table is the measurement data of the arm shaking back and forth in the standing mode, and the group of blue data at the bottom is the measurement results of the hand held watch shaking left and right. The smaller the data change, the better. Compared with the Xiaohei 2, the sensitivity of the Lexin smart watch is relatively high, but it is easy to run more data.

There is a step counting function, and there is also a running function. However, there is no prompt to open the setting track on the watch end, and there is no place to see the relevant settings in the APP. There will be a prompt when the track of Xiaohei 2 is turned on. It uses the GPS of the mobile phone to locate and record the track.

The only thing sleep monitoring wants to verify is the accurate measurement of sleep. First of all, can you identify it if you leave it overnight without a bracelet? Second, is the time range recorded accurate? Figure 1 shows the alarm clock that started to fall asleep at around 0:12 in the morning on Saturday. From the total time, the recorded value is relatively close. Figure 2 shows the result of taking off the bracelet and throwing it on the table overnight, that is, it is identified as not wearing, and no relevant records have been made.

How about the endurance? It is worn all day without WeChat QQ and other notifications, without Bluetooth connection, without running function recording function, and can be used continuously for about 98 hours until the low battery prompt appears. If the frequency of heart rate measurement is lower, the endurance will be better. By the way, SMS and WeChat alerts only support IOS devices.

The waterproof effect is IP67, so try it with confidence. Shower for about 24 minutes, still in normal use. I forgot to put it in the basin, soaked it for 73 minutes, and picked it up for normal use. So it should be no problem to wear it for swimming. Can we measure heart rate underwater? Yes, it still displays the heart rate value in real time.

Experience summary

The characteristics of the Lexin smart watch are: first, it can detect the heart rate function all day long, but it can not set the interval time or is not used to closing, which is also an important aspect related to the endurance; The second is the design of touch screen without physical keys, which makes the operation more convenient and the experience is very good; The third is the waterproof level of IP67. There is no problem in soaking in water, and the heart rate measurement can continue.

For smart watches, how to break through homogenization and make their own product highlights to attract users is the current main problem. In addition to the differences in appearance design, some new functions are added to the basic functions such as time viewing, step counting, long sitting reminder, and message reminder for differentiated competition, such as running, movement track, and heart rate measurement. Of course, the addition of functions is not cumulative or simple implantation. It is also very important to experience how and how accurate, Only by applying both hard and soft can the performance be better exerted.