This is another evaluation report on Haoqing Body Fat Scale after my last [Haoqing mini].

To get to the point directly, thanks to [www.j.com.cn]【 Love to play computer games 】Provide this evaluation product. The following simple scale: [Very light 2]

1、 Unpacking:

The design of the [Good Light 2] transport case is standard, and the Yunmai Technology logo in the middle of the front of the package is very eye-catching. What is worth my attention is that in order to ensure that [Good Light 2] does not have a slightest collision during transportation, Yunmai Technology specially inserts cushioning materials at the upper and lower ends of the inner side of the transport box. Although it is a small action, it reflects the care of Yunmai Technology for users.

The way to open the transport box reminds me of pizza

Take out the packing box of [Haoqing 2], and the front of the white packing case is printed with the product name scale, product type, product picture, and production company information.

On the upper left, we can see the product concept of Yunmai: your health management expert. In the following evaluation, we will focus on how Yunmai, the [expert], does. The lower part is the product name scale and product type. The content on the right side includes the selling points, precautions, and support conditions for mobile devices of [Haoqing2].

On the back is the detailed description of the product:

Among them, what has continued the consistent characteristics of the Cloud Mai series of products is (that is, there is no change. Do I have to be so straightforward? Really):

1. Measure 10 physical data;

2. Executive standard: Q/HC 1-2015： (This is an enterprise standard, which is not enough for outsiders. If you want to check it, you can't find it.)  

Among these dazzling contents, I only focus on three points:

1. A new generation of fat measurement technology; What does "new" mean? My impression is that the measurement is first carried out through [Good Light 2], and then the data is uploaded to the cloud wheat server. After a large number of data analysis and comparison are carried out on the server side, the values corrected by the special algorithm are sent back to display. This is the same as the air quality detector in my hand. First, it relies on the sensor to collect data, and then it is corrected through the algorithm. Finally, the user can get the PM and CO2 values detected. Although the algorithm is important, it still needs accurate sensor support. It is nonsense to talk about algorithms without sensors.

2. Built in lithium battery, USB-C fast charging; In fact, it is TYPE-C. Android users, especially those who have just bought Android phones in the past two years, should not be unfamiliar with TYPE-C. The most significant feature of TYPE-C is that, like Apple's Lightning interface, the front and back of the USB-C port are the same. That is to say, no matter how you plug in this port, it is correct. Users need not worry about the pros and cons of traditional USB ports. Moreover, TYPE-C also has the feature of accelerating the charging time. This later evaluation will also give you a detailed explanation.

3. Support WIFI; [Haoqing2] takes the lead in supporting wifi data transmission. Compared with Bluetooth, it is more stable and faster.

In addition, please note that this product is only for sale in mainland China. This is a hint I didn't see on the [Good Mini] before.

Pull out the package of [Good Light 2].

Is there another meaning of opening a pizza box?

The packing list is very simple, including [Haoqing2] body * 1, instructions&warranty card * 1, USB-C adapter * 1.

When the protective film is removed, there is a strong feeling of iPad?

[Good light 2] Front dimension: length: 300mm; Width: 300mm; Thickness: 23mm, front is a whole piece of automobile grade tempered glass, which is covered with four ITO conductive coatings (human body sensors) in a butterfly shape, and is equipped with a 5.26-inch hidden LED dot matrix screen. According to official data, there are 1136 LED white light display lights on the screen of [Hao Qing 2]. This screen does not appear at ordinary times, and only the one standing on it will display digital&graphic content. This is the biggest difference from the appearance of the previous body fat scale.

No matter the force area or the beauty of the appearance, the aluminum alloy electrode (human body sensor) is far from comparable.

ITO conductive film glass is fabricated by depositing silicon dioxide (SiO2) and indium tin oxide (ITO) films by magnetron sputtering on the basis of soda lime or silicon boron based substrate glass. ITO is a kind of metal compound with good transparent and conductive properties. It has the characteristics of band gap, high light transmittance in the visible spectrum and low resistivity. It is widely used in flat panel display devices, solar cells, special function window coatings and other optoelectronic devices PDP、OLED、 It is the only transparent conductive electrode material for touch screen and other flat panel display devices. Storage conditions: dry storage with humidity below 65%;

Manufacturing process:

(1) Electrochemical diffusion process: doped superconducting films can be obtained by electrochemical diffusion method on glass. The glass contacts with the molten metal or compound in the electrochemical treatment device. Under the action of a certain electric field, the ions in the molten metal or compound will diffuse to the glass surface. The monovalent alkali metal ions in the glass will dissociate and diffuse to the cathode surface in an equal amount, changing the chemical composition of the glass surface. The performance changes accordingly.

(2) High temperature spraying and plasma spraying process: this technology is to heat the powder metal or non-metal and inorganic materials to the molten or unmelted state, and further heat them to atomize, forming a high-temperature high-speed flame flow to spray the glass substrate to be sprayed. In this way, YBaGUOx and other coatings can be prepared on the substrate first, and then become superconducting materials after heat treatment.

The 8.07 mm wide plastic frame has a metallic feel. The whole machine weighs about 2053 grams (inconsistent with the official publicity data).

On the right side of the fuselage are the RESET hole, charging interface and loudspeaker. There is no metal pin for resetting in the package, which can be used with the card taking pin of mobile phone.

[Haoqing 2] Four weighing feet are distributed around the back, and two-dimensional codes and various safety signs are printed in the middle of the bottom.

There is no need to introduce the logo of Bluetooth and WIFI. Everyone is already familiar with it. The remaining three signs are all safety related.

The quality of a body fat scale is by no means good or bad. Must have a strong inner.

2、 Disassembly analysis:

[Haoqing 2] The internal overall frame is made of environmentally friendly PC+ABS, and the production date is September 2016.

  1. [Very light 2] Bottom:

The metal part in the center of the cardan shaft foot is used to transmit pressure, assisted by the elastic plastic material around the foot, so that [Hao Qing 2] can accurately transmit data to the pressure sensor 360 ° even when it is used on uneven ground. This technology is used for the first time on the [Good Light 2].

2. [Very light 2] Body:

Let's look at them in order:

(1) Pressure sensor:

The sensors of the scale are generally 4, and the price ranges from 2 yuan to 30 yuan (the price of a traditional scale in many supermarkets may be 30 yuan). The reason why sensors are expensive is, on the one hand, reflected in the minimum calibration accuracy and service life. The cheap pressure sensor can only be used dozens of times to change its shape, while the expensive pressure sensor can be used thousands of times to change its shape. Shenzhen Lihe Measurement and Control Technology Co., Ltd. is a long-term supplier of pressure sensors for Yunmai series body fat scales. It is the first batch of incubated enterprises of Shenzhen Research Institute of Tsinghua University. Founded in 2004, it is an enterprise specializing in the production of weighing sensors.

(2) LED lamp:

There is an LED light, corresponding to the LOGO below the front of [Haoqing 2].

(3) Human body sensor:

Like other types of body fat scales, [Haoqing2] also has four body sensors distributed around the scale.

(4) Lithium polymer battery:

model: YM-605090-1S

Voltage: 3.7V

Product validity: 3 years

Capacity: 3700mAh (inconsistent with official publicity data)

Executive standard: GB/T 18287-2013

Production date: September 2016

As a qualified old driver, when it comes to batteries, the next step is naturally to measure charging. See if it is as fast as the official propaganda. I use QC2.0 charger:

It can be seen that the voltage is kept between 5.244V-5.245V during charging, and the fluctuation is basically stable. The average voltage is 5.23V; The device detects that the charging capacity is 3129mAh (not much different from the official 3000mAh), but it is nearly 600mAh different from the 3700mAh marked on the battery. When charging through the QC2.0 power adapter, the peak current is nearly 0.6A, and the trickle mode starts to enter after nearly 4 hours and 54 minutes of charging, and it will be fully charged after 7 hours. It is not as fast as the official promotion. Considering that [Haoqing2] uses the built-in lithium battery technology for the first time, it is suggested that Yunmai Technology can contact the battery provider to improve the charging time.  

(5) RESET hole, charging interface, loudspeaker:

(6) Main board:

The fat measuring chip HT45F75 is a new Delta Sigma ADC Type Body Fat Flash MCU launched by Holtek in 2015. Its built-in body fat measuring function, combined with rich and diversified peripheral functions, is particularly suitable for AC body fat measuring system with bridge sensor. Baidu searched this chip, and the search results are almost all related to [Haoqing2]. It seems that [Haoqing2] is the first product integrating this chip!

Ok, the explanation of dismantling the machine is over. Now let's take a look at the APP.

3、 APP application:

The registration interface is standard. You need to input your gender, height and birth date in advance, so as to compare with Yunmai's big data.

After registration, you need to select a device to bind.

After binding, you can weigh.

1. Home page:

(1) Briefing:

The curves of weight, fat and muscle are displayed by day, week, month and year. The historical data of the user's last weighing is displayed below.

(2) Physical report:

Compared with the briefing, the information is more detailed, including 9 body components (BMI, fat, muscle, moisture, protein, visceral fat, bone mass, basic metabolic rate, body age), as well as health related content such as fitness clock, knowledge community, and calorie management.

(3) Manual record:

The manual record can also provide submission of body circumference information for detailed part data supplement. Including chest circumference, waist circumference, hip circumference, arm circumference, thigh circumference and calf circumference.

(4) Challenge every day:

The latest event of Yunmai Technology can be attended here.

(5) Sports diet:

It is equivalent to a record in the form of a daily account, recording what exercise users do every day and what they eat at each meal. Because there are so many contents, here are only some representative examples.

Needless to say about sports, common sports types have been basically included, of course, including [Love]

Food and beverage mainly covers some common fast food in daily life (because it is difficult to calculate the calorie data of Chinese food).

2. Community:

Well, when I saw these photos, I couldn't help making the first picture of the community. Who can refuse?

If 90% of the highlights of the [Very Light] APP are concentrated in the community, I think it is not excessive.

There are three sections in the community: attention, popularity and knowledge.

(1) . Attention:

It's a bit like just logging into Weibo for the first time. The system will push some experts for users to choose and follow. After following, you can view it in this area.

(2) Among the hot spots, there are clocking, weighing and signing in, the latest activities, video teaching, and the latest clocking.

Users can clock in through photos and small videos.

There is nothing to say about these two items. Just look at the picture.

The latest activities will change frequently, such as the "Eat Better" and the "Peach Butter Plan" a few days ago. Users can participate in the sunshine at any time.

Focus on video teaching:

The video teaching area is divided into the following six parts: private training, classification of four major teaching videos, popular recommendations, fat reduction, shaping, muscle enhancement, and special training.

A、 Private training:

Select according to the prompt information of the system, and customize your own private training plan.

B、 There are a total of 174 videos for the four major teaching videos, including 19 videos for chest and back; Lumbar abdomen: 65; Arm: 19; Hips and legs: 28; Whole body: 43. And it continues to increase

Each teaching video is demonstrated by a live trainer, and users only need to follow them to complete the action.

C、 The 174 videos mentioned above are still popular for recommendation, fat reduction, shaping, and muscle enhancement, but they are just rearranged:

D、 Special training:

A total of 89 videos.

3. Knowledge:

The contents are mostly related to diet, exercise and health. It is a big encyclopedia.

4、 Actual measurement experience:

1. When the mobile phone starts the APP, the [Good Light 2] indicator light of Bluetooth&WIFI lights up for a long time. After the weight data is detected, there is an obvious ellipsis prompt uploaded to the server. After uploading, the weight&body fat rate will be displayed, and finally the weather of the day will be displayed. The detection results appear synchronously on the APP side.

2. When the mobile phone does not start the APP, [Good Light 2] lights up the WIFI indicator for a long time. After the weight data is detected, there is an obvious ellipsis prompt uploaded to the server. After uploading, the weight&body fat rate will be displayed, and finally the weather of the day will be displayed. When the mobile terminal starts the APP again, the detection results will be synchronized to the mobile phone.

5、 Summary:

The students who can complete the above evaluation must be true love! I believe you can really feel [How light 2, really not light] through this review. The price of such a heavy [Haoqing2] is 499 yuan. I believe that a considerable part of the price comes from ITO conductive coating technology. The price of other similar products (ITO technology) on Jd is also relatively high. It is hoped that with the technological innovation and the increase of production capacity, the cost of this technology can be reduced. Let more users experience the combination of beauty and wisdom of the [Good Light 2].

6、 Suggestions:

No one is perfect and no machine is complete. There will always be problems with products. Through the above evaluation, I found some shortcomings in the [Good Light 2]. Let's summarize and hope the authorities can deal with them as soon as possible.

1. I found some inconsistencies between the previous analysis and the official propaganda. I suggest that Yunmai should check carefully. If there are errors, please correct them in time.

2. It is recommended to contact the battery manufacturer to solve the fast charging problem.

3. It is recommended to add firmware update function in APP. Once the charging problem is repaired, it can be solved by firmware update through the APP terminal in a timely manner.

4. All sensors have a service life, and the error will gradually increase with the use of time. It is suggested that Yunmai consider adding a countdown reminder function of sensor service life on the APP.

5. Why does the weather forecast on [Haoqing 2] remind users after weighing? It is suggested to add a haze reminder function, which can also be pushed on the APP. Remind the user whether to choose outdoor or indoor fitness.

6. The teaching videos in APP mainly focus on indoor fitness, and most of them are non instrument exercises. Lack of outdoor sports and equipment training. There is also a lack of supervision on the accuracy of user actions. Fitness is rigorous. If the movement is not accurate, the fitness effect will be biased. Because I just finished evaluating a fitness bracelet named Moov now last week, this bracelet can record the relevant data of users when they exercise in detail, and can also add fitness content in terms of body feel. It can complement with Yunmai. I think Yunmai might as well try to contact Moov now for in-depth cooperation.

7. The APP lacks support for smart TV and box. If indoor fitness video can be completed by users facing TV, it must be excellent. (Airplay synchronous push is not counted)

8. Lack of water replenishing reminder function after exercise.

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