With the first brand new intelligent body analysis scale released at CES in 2013, the market of intelligent scales is heating up rapidly, and the analysis scales of various brands are coming in one after another. The body weight, body fat rate, basic metabolic rate, bone mass, muscle mass and other data are taken as the detection indicators. What I got today is a PBA tangible intelligent fat scale.
Basic parameters
Product size: 280 × 240 × 22mm
Power supply mode: 3 1.5V No.7 batteries
Communication mode: Bluetooth 4.0
Software platform: Android 4.3 or above, iOS 7 or above
Maximum weight: 150Kg
Measurement parameters: body weight, fat, water, BMI, metabolic rate and body age
Unpacking&Appearance
Pure white design, simple and generous.
The front is the slogan of the pain point of the girl, and the colorful font is more eye-catching.
There is a silver brand logo in the upper left corner.
On the back are simple specification parameters and eight detection indicators of PBA visible intelligent fat scale.
One side of the packing box is pasted with a authenticity inquiry label.
Only after opening the package can we know that the material of the packaging box is corrugated paper, which not only saves the packaging cost, but also prevents the product from losing its visual quality. But I would like to praise the front "disguise".
PBA visible intelligent fat scale basically occupies the whole packaging box.
instructions
There are three No. 7 batteries, instructions and a piece of wiping cloth attached below the fat scale.
The front is made of stainless steel glass, which greatly reduces the risk of screen breakage.
There are two stainless steel electrode plates on the left and right, and the radian curve fits better with your feet, making the measurement data more accurate. It is found by touching that the electrode piece has a certain bulge, which should be in order to better contact with the skin, so as to ensure the accuracy of the measurement data.
The edge of the stainless steel electrode piece has undergone arc transition, but the sharp corner on the outside still has the risk of scratching clothes (as a fat scale, it needs to be weighed on bare feet, but it does not exclude that some users only measure weight and wear socks).
The words "created by PBA" are on the lower edge of the fuselage.
There is a built-in invisible LED light at the position corresponding to the words, which can only be observed under working conditions. The light source is an LED lamp on the left, and the light distribution is obviously uneven.
The bottom is designed with a pure white plastic panel, and the four corners are respectively equipped with a TPU foot. The addition of the TPU foot can not only provide sufficient friction for the Makah intelligent weight gauge, effectively prevent sliding, but also make the measurement more accurate.
The feet are designed with large chamfers, which can prevent rollover to a certain extent.
In the middle of the bottom is the energy source of the whole scale, a battery compartment that can hold three No. 7 batteries.
It is obvious from the side that the product is composed of upper and lower parts. The upper end is tempered glass, and the lower end is pure white ABS panel. The plastic panel has done some arc treatment to make the product look thinner.
The design of PBA visible intelligent fat scale is simple and fashionable. Because it is targeted at women's products, it is much smaller in size than similar products on the market.
Small popularization of body fat scale knowledge
(Data comes from the network)
Principle of fat scale
There is ITO conductive film on the surface of the fat scale, and the non-invasive weak bioelectricity circulates in the body, which is measured by BIA (bioelectrical impedance analysis) method. The principle is that body fat is almost non-conductive, while body components such as muscle and water are easy to conduct electricity, so the fat scale can calculate the ratio of body fat, water and other tissue components by measuring the bioelectrical impedance of the human body.
Dummy body fat scale
A DC body fat scale on the market now uses DC current to measure the resistance of the body, not a real BIA body fat scale. As we know, human cells are wrapped by phospholipid membrane, which is relatively insulated. Each cell is capacitive, and the electrical characteristics of the whole body are capacitive loads. Therefore, it is necessary to pass through the cells through AC excitation current to measure the real human impedance. If DC current is used to pass through the human body, it cannot pass through human cells and tissues. What is measured is not human impedance (for DC, there is no concept of impedance), but mainly the cortical resistance of the human body. Moreover, because DC electricity has polarization effect through the human body, the DC resistance of the human body can be stabilized after several minutes or even more than ten minutes. The experiment shows that the DC resistance of the human body is about 20~500 kiloohm, while the real human body AC impedance is generally below 1 kiloohm, with a good difference of tens to hundreds of times. No research data shows that the DC resistance of the human body is related to the body fat, so the fat scale measuring the body resistance in DC mode is a fake body fat scale.
Identify true and false body fat scales
First, stand on the body fat scale to measure, record the measured results, and then use the squat measurement. Note that under the same weight, the body fat rate measured by the real body fat scale should be significantly different. Generally, the body fat rate measured by the squat measurement is 0.3~3.0% smaller than that measured by the station There is no difference between fake DC body fat scales.
Software&Use
As a female brand, PBA series products are not single, and "PBA Women" is more like a female social software.
It is convenient and convenient to log in to the account and support third-party login such as QQ and Sina Weibo.
The main page of the application, as a free brand female social application, is rich in content. The visible fat scale is only one of its functions. Here, we will only evaluate and share this function, and other contents will not be repeated.
Personal information input, so that the cloud server can conduct data analysis and feedback in combination with itself.
The main page of the fat scale is composed of four cards: "daily test, detailed analysis, task package and data record".
The author's test result shows that the real weight is 50.1KG, which shows that the measurement result has certain error. When measured in the squatting state, the fat rate decreased significantly.
All parameters except body weight need to be measured on bare feet. PBA also supports non bare foot weighing, which only measures body weight. Unfortunately, data saving is not supported.
The measurement results are combined with their own information, and the PBA fat scale gives real-time feedback.
In the face of professional names such as fat, water, BMI, metabolic rate and body age, not only are small white users, but most people cannot understand their meaning. The "PBA Women's Sect" explained the parameters in detail.
Data implementation and sharing. Since PBA has been involved in female social applications since its early days, it has gathered a large number of users so far. Once, its social circle is not as empty as the social functions of smart watches and bracelets.
PBA fat scale is a family product that supports multi account management.
summary
Health is our eternal topic of discussion. As a body fat scale with health as its purpose, despite the accuracy of measurement data, through the eight data measured every day, the concept of health and exercise is passed on to us.
As an intelligent product, PBA Body Fat is really competitive with similar products on the market with elegant hardware appearance, supporting software and a price of 99 yuan. But if you just want to know your weight, I believe that a traditional scale on a Taobao website is more cost-effective.
advantage
Small size, easy to place;
Intelligent recognition of barefoot and non barefoot status;
High stability of Bluetooth connection;
High cost performance.
Insufficient
The electrode piece is protruding, which may scratch the clothes;
Low accuracy;
Weight data cannot be saved separately.
