At 4 pm on July 22, 2014, at the annual conference of Xiaomi, the millet bracelet with an initial sale price of 79 yuan appeared. Today, millet bracelets have successfully sold more than 20 million. Xiaomi’s Huami Technology has now become the world’s second-largest smart wearable device company. Jawbone’s wristbands, which once sold the world’s second-largest, and which target hundreds of thousands of high-end prices, have been discontinued. In the course of a year-and-a-half years of use, the relatively accurate movement records, sleep monitoring of the millet bracelet, and the recording and social functions of the millet sports app have brought a lot of fun to my life. The simple and practical vibration alarm clock is also quieter and more comfortable than the traditional alarm clock. The telephone reminding function allows me to reduce the chance of missed calls in a noisy moving brick environment, which brings great convenience to my life. There is also a compelling "long life" compared to other wearable devices that have been charged at least once a week. I have been used for more than 40 consecutive days. There was also an episode in the middle, and my millet bracelet was broken once. After a shower, I didn't know what the reason was. After the rice was connected to the charging cable, I couldn't charge it . (Now the analysis may be that the grain was not buckled at that time, and the bath caused the charging of the rice to cause a short-circuit due to the charge of the positive and negative electrodes.) Although the purchase was made by a third party, no invoice was kept. However, Xiaomi customer service accepted my after-sales request after a brief feedback and negotiation with Xiaomi Service 400-100-5678 . In the first week I sent the warranty card, bracelet, and box in accordance with customer service requirements, I received feedback from Xiaomi's customer service. I was told that the rice was broken. The result of the after-sales processing was that the warranty period could not be repaired. Give me another one. In the end I not only received a new grain of rice, but Xiaomi also gave me a reimbursement of postage sent in the past. Cost-effective and cost-effective, after-sale protection, is my deepest impression on the millet bracelet. In June of this year, the millet bracelet was released on the 2nd. As a pseudo rice noodle, which is quite a nuance for the millet bracelet's 1S photo-sensing version, it has been buoyant for the 1S to increase the heart rate detection function. Therefore, after learning that Xiaomi Bracelet 2 has redesigned its appearance, added an OLED display that supports touch operation, and upgraded the battery information, I also actively launched the masses around them to lead them into the buying process. Xiaomi’s is that in Jingdong and Xiaomi’s first round of the second round of the second round and the subsequent Nth round of panic buying, we could only quietly feel the madness of rice noodles (cattle) and watched on the mobile computer’s ipad. The three characters of "has warned" continue to be in a daze. Xiaomi’s is that the official quotation of RMB 159 for the Millet Bracelet 2 is difficult to obtain as always. The quoted price of 169 yuan (now premium to 199) is still visible to you. However, the quotation is RMB 235. The third party and the Tmall third party are just how much you want and how much I have. The last resort has to increase the price of Tmall's third party purchase, payment and delivery. The SF Express was very forceful and received the parcel within a few days. The packaging of the millet bracelet 2 continues the packaging of a generation of traditional classic kraft paper. The overall style is always concise, and in the middle is Mi's logo. From the back of the carton is a specific parameter can be seen, millet bracelet 2 also continued a generation of Bluetooth 4.0BLE technology and IP67 international waterproof rating, and the battery capacity from the previous generation and 1S 45mAh upgraded to 70mAh. Open the box of millet bracelet 2 and first see the grains of millet bracelet 2 . Gently pull open the wrapper, which is a wristband with silicone material and charging cable and a description of the maintenance card, the overall packaging is as simple as ever. 1 grain: The surface of rice grain is made of plastic material, with a 0.42 inch OLED display on the top, and the bottom of the screen is a touch button of aluminum alloy material with a metal wire drawing process, which can effectively prevent scratching and prevent fingerprint retention. Compared to the 1st generation and 1S blasted metal process, the millet's 2mm grain has a higher face value and a more elegant texture. The back of the grain is an optoelectronic heart rate sensor and the bottom two are used to recharge the metal contacts. The position of the Mi family's logo has also changed from the previous generation. As the most important part of the millet bracelet 2, you can display the basic information such as time, steps, heart rate, and APP notification on the 0.42-inch OLED screen of rice after customization in the millet campaign. The operation is also very simple, by touching the circular touch button under the rice to switch display. The touch of this excellent texture is very sensitive, and it responds with a touch. 2 charging cable and wrist strap: The charging line of the millet bracelet generation 2 also uses the same traditional contact design as that of the 1st generation, and also has a more secure wrapping process on the bayonet part to ensure that the rice grain can be tightly embedded with the charging line when charging. Cohesion will not fall off. In contrast, the charging cord of the millet bracelet 2 uses an anti-winding flat design, which is not easy to knot and more resistant to folding. Maybe the previous generation of rice grains would be baffled by somehow losing their reputation. (Say I also lost one and later found it in the room) The millet bracelet 2 also upgrades the wristband module. It uses the latest design. The lining structure, the body of the hand ring, that is, the installation of the rice grains can be changed from the inside to the outside to be loaded inside. This can more firmly wrapped around the main body of the bracelet, to the greatest extent possible to avoid the possibility of loss of the bracelet body. At the same time, the color of wristbands is more abundant, satisfying the young people's pursuit of individual colors. (Old driver nausea but not show, or low-key black for me) The wristbands of the millet wristbands of the second generation are made of a single material that is different from the previous generation wristbands. The body contact portion of the wristband is made of a tough elastic material, and the contact portion of the wristband is made of a softer skin-friendly material. The advantage of sweat can bring about better wearing feelings. In my actual wearing experience, it may be that the wristbands of the 2nd generation are wider in design, softer in texture, and smaller and denser in the snap openings, which are more fitting than the 1st generation bracelets. Comfortable, long time wearing does not have the allergy phenomenon. â‘ bracelet 1 and 2, like millet, millet is done through the exchange of data and mobile sports app. However, the app's main interface of the Millet Bracelet 2 has not changed too much. Compared with the first generation, the status bar of the main interface increases the heart rate detection information in addition to the basic number of steps and sleep display. 2 The second column of the main interface, “Discoveryâ€, is mainly the online and offline activities promoted by Xiaomi, service items, and entrances to online stores. â‘¢ The third column of the main interface "intellectual play" is Mi band of the core portion 2, and the generation compared Mi band 2 while retaining the call reminder, this alarm bracelet two basic functions, also increased App alerts for applications such as WeChat, QQ, Weibo, Taobao, and Mickey, as well as very human-based sedentary reminders. (Humanization is reflected in the fact that you can set up lunch breaks and do not disturb.) Click "More", you can also set the millet bracelet 2 reminder in more detail settings: such as SMS reminders, e-mail reminders, compliance reminders, you can also directly open Do not disturb mode so that the bracelet is in an absolutely quiet state. 2 The last column "My" is the entrance to the relevant information and settings of the millet bracelet. In addition to viewing your own personal information and sports information, you can also set your own sports goals, weight goals, and The unit of measurement, at the same time, can also be used to monitor the interaction between the relatives and friends by looking at each other's sports sleep and other data. Of course, you can also add new devices in this interface, such as Li Ning smart running shoes, millet scales and so on. Click on the "millet bracelet 2" column shown in the figure above to enter the second level interface of the millet bracelet. This interface, like the first generation, mainly shows the remaining power of the wristband, the duration of the battery life, and the integration of the lookup bracelet, the replacement of the wearer, and the function of the bracelet firmware version and mac address. Compared with the 1st generation, Xiaomi Bracelet 2 has added a wrist-lifting screen and heart rate-assisted sleep monitoring function at this interface. The information displayed on the screen of the millet bracelet 2 is also personalized and customized in this interface. In addition to time, different switching can be performed between “step number, mileage, heart rate, and remaining battery powerâ€. The feelings of the following individuals in the light use process, one of the words only for reference, brick home pat. 1 Xiaomi official website, said in the sports record, millet bracelet 2 uses a more accurate acceleration sensor. This ADI accelerometer is said to have ultra-low power consumption compared to the 1st generation of conventional gravity sensors. It combines the Xiaomi bracelet 2's brand new motion pedometer algorithm and can effectively filter the motionless state. High-frequency activities greatly increase the accuracy of pedometers and make daily measurement data more accurate. However, in actual use , like the millet bracelet 1 generation, when wearing a millet bracelet for 2 generations to perform a large swing arm movement, the bracelet still automatically pedometer. Only when performing small-volume and frequent daily activities such as brushing, coding, and flying planes, Xiaomi Bracelet 2 can indeed play a partial filtering role as described by the official website. Therefore, in the course of testing the millet bracelet 1 and the millet bracelet 2 and the mobile phone for a long time, the test results will have some differences. The result is the movement data (steps) of the millet bracelet 1> millet bracelet 2 Data (steps). 2 Regarding heart rate and running, the old driver would like to say that most of the photoelectric heart rate sensors on the market are similar, although walking, sweating, and even talking can cause deviations in the heart rate test data, but the real-time heart rate is displayed during exercise. Has a certain reference value. The heart rate monitoring of the millet wristband 2 is simple to operate and supports automatic opening during exercise mode and sleep monitoring. In the options of running, millet bracelet 2 has the same normal mode and map mode as the previous generation. Due to the addition of the heart rate sensor, in addition to displaying the time and pace of exercise in the normal mode, real-time heart rate monitoring can be started during the running process to record the heart rate data during the exercise. However, in this data display above, we can only see the two data of the highest heart rate and average heart rate, can not see the heart rate fluctuations during exercise, the degree of practicality is more general. The map mode is the same as the previous generation, and it is necessary to use the navigation map of the mobile phone to record the map trajectory. 3 On the sleep monitoring function , I tied the millet bracelet 1 and the millet bracelet 2 to the left and right hands respectively for a simple test. The results of the test showed that the two bracelets had slightly different data when they were asleep and waking up, but the data deviation was within an acceptable range. In the more detailed light sleep and deep sleep data, the two bracelets are also very similar. It is well known that the sleep monitor of a sports bracelet is also data grabbed by a motion sensor, so the data is dependent on the state of motion when sleeping at a fixed time during the night. For example, if you do not move for a long time in the evening, then the bracelet will judge you to be in deep sleep. If you often dither, it means that you are in a light sleep state with low quality of sleep. This kind of algorithm can be described as simple and crude, so the old driver's attitude is that the so-called sleep monitoring data need not be too serious, but only a reference. Another more accurate and accurate sleep monitoring is based on heart rate. Since our heart rate will change with the change of sleep cycle, when we are in deep sleep, the heart rate will decrease accordingly, so we will monitor the sleep quality with reference to the change of heart rate during this sleep time. Millet bracelet 2 also has the function of sleep heart rate assisted detection, but there is no relevant sleep heart rate data shows whether the accuracy of the old driver has not dared to draw conclusions. In summary, as a sports bracelet, millet bracelet 2 to add display time support OLED display can also be said not only blurred the boundaries of the bracelet and watch, but also usher in a major breakthrough in the value of the same time, in the message push New features such as display and display have been improved. In addition, the addition of a heart rate sensor with an upgraded battery capacity also makes it more energy-efficient than other wristbands. In general, Xiaomi Bracelet 2 has a heart rate monitor, a rich interface, and a good after-sale product. The 149 price positioning can be said to be very cost-effective. However, the sincerity of the Millet Bracelet 2 has been the rhythm of the shortage of production capacity (too deep) since the release of the millet bracelet. This rhythm is that you can't buy 149 at all. Jingdong's self-employed, uncongenially, still priced from 169 brutal to a price of 199. This point I and the majority of melons have been unable to Tucao. Followed by the millet bracelet 2's step accuracy and heart rate availability, running mode as always simple simple tasteless. Running with the other bracelets is inseparable from the help of the mobile phone, which cannot independently record and display the trajectory. The heart rate monitoring in the running mode also does not show an intuitive fluctuating graph, and the practical performance is greatly reduced. Slots and cost-effective coexist.
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Collaborative Workspaces
Classrooms and Educational Settings
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Chapter II: Buy & Unpack 
