The Xiaomi bracelet generation released by Xiaomi the year before last now occupies a quarter of the market share in the industry, becoming the largest smart bracelet company in China and the third in the world. The second generation released today has heart rate monitoring function. Whether it can break this share again remains to be seen.

It seems that Xiaomi's packaging box always has a yellow theme. With the eye-catching "MI" logo, it seems that we have been accustomed to the packaging design of Xiaomi. After all, renewable materials are more environmentally friendly, and this simple and generous packaging is more acceptable to consumers. Tear open the plastic film of the packaging box, pull open the lid, and see the silver body of the bracelet, which is shiny with metal luster. It feels very textured. Although it is made of plastic, it brings a strong sense of metal.

Accessories include watchband, host, charging line and manual warranty card. Simple packaging shows the charm of the product

The main body of the bracelet seems to attract me more. The small volume contains several sensors, and the most beautiful place is the front of the metal luster and texture. It is found that there is no sense of cheap plastic from multiple angles, and it shows more metal in the front

The second generation back is equipped with a heart rate sensor, which adopts a photoelectric heart rate sensor and uses the light capacitance pulse wave recording method to measure the human heart rate. This principle simply means that when your heart beats, the blood vessels contract. The green light emitted by the sensor shines on the blood vessels, and then reflects it. According to the changes of the reflected light, the heart beat is measured. At present, most bracelets on the market use this scheme

It's troublesome to charge the bracelet. It's hard to split the host and the strap, but these seem to better protect the host from falling off from the strap. When you run, the arm swing is still quite large, with both advantages and disadvantages. Since disassembly and charging are troublesome, how about its endurance? After all, there are photoelectric sensors, which consume more power for night sleep monitoring.

The actual situation is much better than I expected. It can be used normally for two days, including 10% of the power down when the sleep monitor is turned on at night. Theoretically, it should be OK to use it normally for half a month after full charge. The following figure shows the charging interface, which can be removed from the watch strap only after the strap is stretched.

The bracelet is as troublesome to install as it is to remove. Fortunately, the endurance makes me quite satisfied. It takes a long time to recharge the battery. There are three LED indicators on the host, through which you can display the completion of your set sports goals. When one is lit, it represents one third of the sports goals have been achieved.

There is a problem with the wrist strap of the previous generation of Xiaomi bracelet. After a long time of use, the metal button on the wrist strap will fall off. From the perspective of the second generation, it seems that the metal button is very tight, and it will fall off only when you force the button. However, it cannot be guaranteed that the aging and hardening of the wrist strap will not fall off after a long time.

As the watchband is soft and elastic, it feels good to wear it on the hand, without any sense of bondage.

It's troublesome to wear the bracelet. It takes a lot of effort to buckle the metal buckle into the watchband hole. You can press it hard to get in. This has the same advantages and disadvantages as the removal of the bracelet. Exercise and sleep can prevent falling off. You can buy other types of watchbands if you like.

Among the many bracelets, I prefer the Xiaomi bracelet. It is small but also like an ornament. It is magnificent. This is what it should show as a sports bracelet. It is suitable for sports and fitness. It is worth mentioning that when I run hard, the bracelet will not increase the sweat on my wrist, nor will it cause discomfort to my wrist when I exercise with it.

Scan the QR code of the manual to download the bracelet APP. The first registration and binding process of the APP was smooth, but the binding process of the Bluetooth connection took a long time, about three minutes. It is recommended that the official optimize it.

The most basic running step counting function of the sports bracelet is that Xiaomi is also very good at it. The error of three times of three hundred steps is between plus and minus five, which is within my acceptance range. After all, there are few or almost no bracelets with no error in calculation in the market. In fact, what I like most about this bracelet is that it keeps track of when I start walking, how long I walk Step number, clearly understand their daily exercise state, has important reference significance.

The heart rate monitoring function is the biggest highlight of this bracelet. Of course, the heart rate measured by it several times is the same as that calculated by pinching the stopwatch. However, when I take off the bracelet for testing, it suddenly soars to an unbelievable value. If my bracelet is not properly worn and the bracelet is still monitored, then the credibility of the data will be greatly reduced, so it is necessary to determine whether to contact the skin for heart rate monitoring.

The quality of sleep is also judged by heart rate monitoring. You can check the sleeping status by dragging the digital axis. The bracelet constantly monitors the heart rate and analyzes your sleep through algorithms. The data is quite accurate from the time of falling asleep and getting up. The error is very small. The APP can view the detailed sleep data of last night, but the data before yesterday cannot be viewed. I hope the detailed data can be retained for 7 days

Of course, the endurance of the bracelet may also be a concern for me and others. As I said earlier, 10% of the power is lost in two days when heart rate monitoring is turned on. In addition, the alarm clock vibration, call reminder and other functions are turned on. The vibration is very strong, slightly greater than the vibration of the mobile phone. In this environment, I am more satisfied with the endurance.

Summary:

There are still many highlights in the optical version of Xiaomi bracelet. The addition of heart rate monitoring, sleep monitoring and other functions undoubtedly makes users prefer this generation of Xiaomi bracelet. Although the price of this generation of bracelet is 99 RMB, the price of the bracelet with these functions in the market is more than 100 yuan. Xiaomi mobile phone is still very cost-effective.

Suggestion:

If you are an athlete who loves running, Xiaomi Light Sense Edition is more suitable for you. You can check your heart rate changes in real time to understand your exercise; Xiaomi generation 1 is also a good choice from the perspective of endurance and infrequent users. After all, the second generation only adds heart rate sensors and related functions to the first generation.