GPS buying points.gps tracker with magnet Vendor

　　1. Look at the chip of the satellite signal receiving module is the first generation.

　　This is an important component that determines the accuracy and speed of GPS. Choosing a backward chip means that when your car arrives at the intersection, you need to wait for GPS to tell you how to go before you can drive. If you walk at a normal speed, you will return to the original line from time to time to correct the error. The first -generation to third -generation chips on the market are using. Most dealers will not tell you the chip performance of his product when selling GPS. This is like you buy a mobile phone, and people will not tell you how much the CPU of the mobile phone is, because once telling you that the mobile phone CPU version is very low, it will affect the use of the mobile phone, will you still buy this phone? A brand GPS navigator, from Shenzhen to Zhuhai, at an intersection, the GPS response speed and driving speed will be a few seconds to ten seconds, and the car is uncomfortable.)

　　2. Take a look at the speed of the map update.

　　The construction and development of various places are very fast. If the manufacturer does not provide the map update service in time, your GPS will not be much used. Of course, GPS sales staff will not take the initiative to tell you. Sales staff will tell you how many places and villages can be covered in the maps in its GPS. But if you think about it, if the map is not updated, it won't take long for the maps displayed by your GPS will be very different from the actual. (I use another brand of GPS navigator from Fuxin City to Changchun City. The whole process has walked 160 kilometers. The reason is that the Tie Chao high speed has been opened to traffic for 10 months, and the two places are only 380 kilometers. I follow the old road of Shenha Highway, and it is 540 kilometers between the two places on the old road.)

　　3. See how long the manufacturer provides you with a free update of the map.

　　Generally, GPS produced by non -formal enterprises uses cracked maps and will not provide update services. There are also some companies using genuine maps, but do not provide update services. There are also some enterprises using genuine maps, but the map should be charged separately when updating. There are also some companies with a long time for you to update for a long time. You must know that the ratio of the price of the hardware of the GPS navigator itself in the market is about 1: 3 or 1: 6, which means that the hardware is cheaper than the software. Therefore, when choosing a GPS navigator, you have to look at both hardware and software. Otherwise, the GPS you bought is a small waste.

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