I wonder if you are the same as the author. When you hear about new devices like "location phones", you always like to think that these products are intended for "children". The first time I saw the introduction of the Mi Tu positioning phone, the first reaction was to understand it as a child positioning product. How can a product like Mi Tu, which can't see the time and whose appearance is not very popular with children, compete with the relatively popular child positioning bracelet at present, With such curiosity, the author applied for and experienced the location phone of Mi Tu on Lei Feng's website. Next, the author will share the new experience of this experience.

brief introduction

It can be seen from the name "Mi Rabbit" that this is a product in the ecological chain of Xiaomi intelligent hardware, enjoying the same quality treatment and after-sales service as other Xiaomi products. It can be seen from the parameters provided by the official that the main function of the Mi Tu location phone is to locate and make calls. Compared with other children's location watches, the functions of the Mi Tu location phone are slightly single, but it is also because the functions are relatively single, so the Mi Tu point phone can achieve a longer endurance (official data 10 days standby), smaller and less easily discovered appearance, In addition, the appearance of Founder also allows Mi Tu to be used not only by children, but also by the elderly, valuables, vehicles and other equipment to achieve communication and positioning.

appearance

The packaging of Michare products is as simple as its functions. It is packed in ordinary window opening paper boxes, and the internal accessories are only instructions, lanyards, and hosts. As a reminder, the Michare location phone only supports the Nano SIM (the smallest) phone card of the network operator in the GSM 900/1800 (China Mobile, China Unicom 2G card) communication system. At the time of purchase, the manufacturer did not provide or bind the phone card. After purchase, you need to purchase and install the phone card yourself.

Small size is the main advantage of Mi Tu's location phone. The overall size is about half the size of the usual lighter, and the thickness is slightly thicker than the current mainstream mobile phones. The size of rice rabbit determines its strong concealment. It can perfectly conceal itself no matter whether it is worn or tied on children or valuables.

On the front of the product is a round function button with moderate hand feel and volume. Below the button is a hidden LED indicator light, and below the indicator light is a speaker.

LED indicator light mainly uses red, yellow, blue constant and flashing to indicate the status. When I first got the product, I personally thought that the LED indicator light was too small, and adults had a little difficulty in observing the color of the indicator light. If it was used by the elderly, it should be almost invisible. However, after a few days of use, the author gradually changed his mind. When using the location phone of Mi Tu normally, he would hardly check the LED light, because the speaker would also have corresponding voice or voice prompts when the LED light expressed various states. For example, when Mi Tu was in low power, the indicator light would appear purple (official said it was red) flashing, and the speaker would give a short sound. This weakens the function of LED indicator light to a certain extent, and also ensures the concealment of Michare location phone.

The size and feedback force of the round button is moderate for adults and children, but it is slightly small for the elderly and the feedback force is not obvious. If you are going to use the Mi Tu location phone for the elderly, the author suggests that you should be patient and teach more times to overcome this problem to some extent. The use function of the key is very simple. There are only two use statuses: click and long press. Click twice to switch contacts, and long press to make a call. It can be said that the main design and functions of the Mi Tu location phone are the most concise and efficient location phone at present. Compared with other children's watches with complex functions on the market, Mi Tu phone is extremely convenient for children and the elderly to learn and use.

The steps of installing the Nano SIM card are also very convenient. You can see the position of the Nano SIM card by snapping up the front shell with your fingers. For the current electronic equipment, the convenience of installation must be accompanied by another problem, that is, it is difficult for such products to achieve good waterproof performance. From the picture of opening the front shell, it can be seen that the Mi Tu positioning phone can not be waterproof. Everyone must pay attention to the waterproof protection of Mi Tu in daily use, especially when wearing it on the active Users of children who love playing with water.

There are no other function keys on the back of the main body except for the Michare LOGO and some important parameters.

The bottom charging port is micro usb. Although the manufacturer does not provide a standard charger, you can use various mobile phone chargers with 5V output voltage to charge it. From the actual situation, use a 5V 1A charger to charge the Michare phone for about one and a half hours.

After the original hanging rope is installed, the Michare positioning phone can be hung in various positions. If you want to wear the Mi Tu location phone as a necklace on your chest, you can only buy a longer lanyard to replace the shorter but more delicate lanyard of the original factory.

Mobile applications

There are only two functions on the main body of the Michare location phone: selecting a contact and making a call, while the realization of other functions such as adding a contact location to view and so on is naturally transferred to the mobile APP. The overall interface of the app "location phone" on the mobile phone end of Mitu is also very simple. The main interface is to locate the location of the main body of the phone, and the map support is Gaode Map. In addition to intuitively displaying the positioning position, the main interface also has numerous shortcut menus such as "Setup", "Contact", "Track", "Positioning", etc. According to the comparison of the software end of the children's watch used by the author at present, the APP of MIBU location phone is the most intuitive and understandable one with the lowest learning cost.

positioning accuracy

As the two most important parameters of such products as location phones, of course, are "location accuracy" and "call effect". Here, we first test the location accuracy. The static location accuracy of the test rabbit location phone is measured in the shop on the first floor next to the main road of about two-way four lanes, as shown in the figure above. The test results surprised the author, although they did not complete the overlap, However, according to the actual situation, the error is up to 10 meters, which is equivalent to the positioning accuracy of vehicle GPS.

Next, let's take a look at the indoor positioning accuracy of the MIBU positioning phone with very dense building spacing. In the environment shown in the picture, the mobile phone signal of the author also has only three to four bars. At this time, the accuracy of the location phone of Mi Tu has declined as expected, but the error of about 30 meters is still surprising. According to the situation that the author tested some inferior brand children's watches before, the positioning accuracy of inferior brand watches can be described in kilometers at this time, while the accuracy of Mi Tu's positioning phone can reach about 30 meters. The author is very satisfied with this result.

Static precision drift

After using many children's positioning watches, the author feels that the positioning drift accuracy in static state is also an important item to judge the positioning watch products. The author put the MIBU positioning phone in the "second floor with dense building spacing" of the above test project one day and obtained the static precision drift diagram shown in the above figure, From the picture, it can be seen that the static drift of the MIBU positioning phone is also controlled at about 30 meters in a bad environment. The test results are also very satisfactory.

Track route

The track and route function does not work well in ordinary times, but the accuracy of the track and route is a good clue when valuables are lost or people are lost. The above dynamic diagram shows the track after the tracking mode is turned on. It can be seen that the lines located after the tracking mode is turned on can more accurately show the detailed intersections that the Mi Tu location phone once passed. This result is also excellent in similar products. However, the trajectory accuracy is much worse in the ordinary mode of power saving, and you can't have it both ways.

Call effect and volume

From the picture of the SIM card installed in the front, we can see that the speaker of the Michare location phone is similar to the speaker of an ordinary mobile phone, which also determines that the external volume of the Michare point phone will not be too surprising. The author took the Mi Tu location phone to the noisy farmers' market at noon to experience the actual effect as expected. The volume of the external voice is the same as that of the ordinary mobile phone when it is hands-free. At this time, you must pay close attention to hear the call clearly, If your attention is really on something else at this time, you are likely to miss the call or cannot hear the speech on the other side of the phone. On the whole, the volume of the Michare positioning phone can only be considered moderate.

Application population

At present, due to the appearance and volume of children's watches on the market, most of them can only be suitable for children and should be worn on the hand. One of the important reasons why the author is very fond of the Mi Tu location phone is that it is small in size and moderate in appearance, and does not need to be worn on the hand. The Mi Tu location phone can not only be hung on the clothes of children and the elderly as decorations, but also be better concealed or hung on valuables or vehicles. When it is used for children or the elderly, it is a positioning artifact for positioning and tracking. It can also be used as a small and convenient phone. It is really a multi-purpose helper.

Endurance

Officially, the standby time of the Michare location phone is 10 days. Judging from the actual moderate use of this week, the actual life of the Michare location phone in the hands of the author is only about 4 to 5 days. Compared with other children's watch products, the endurance performance is good, but if I can really achieve about 7 days, I will be satisfied with the endurance.

summary

advantage

1. Small size, moderate appearance, suitable for all kinds of people and objects to wear or hang.

2. The positioning accuracy is actually the best among the current similar products.

3. The brand strength is relatively strong. After all, it is a product in Xiaomi's ecological chain. It helps a lot in the use and maintenance of quality, after-sales and later products. For example, I have seen too many manufacturers that have closed down for half a year. It's still reassuring to choose a product from a manufacturer with strong brand strength.

4. The functions are simple and practical, easy to use, and there is no flashy function. The Michare location phone is a product that focuses on positioning.

shortcoming

1. The external volume is slightly lower. If the external volume of the copycat machine can be achieved, it will be perfect.

2. It is not waterproof, and the electronic products are not waterproof at all, which is quite worrying for the electronic devices worn on the bear child.

3. It will be more perfect if the endurance can be optimized to about 7 days.

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