The reason recommended by the editor is that the portable GPS has a relatively small appearance, high flexibility in placement, and can be carried and used separately. Generally, it is equipped with a built-in battery, and the battery's endurance is relatively average. It can be powered and used through the car's cigarette lighter.

　　Advantages and disadvantages of portable GPS:

　　The price is relatively cheap and can be carried with you. Map upgrades and information updates are convenient, and it has the advantages of wide adaptability, strong sensitivity, no need for installation or easy installation. However, the screen is generally small, and the navigation sound is generally not loud; Due to the fact that it is not integrated with the interior of the car, an additional charging cable is required, which can affect the aesthetics of the interior.

　　Portable GPS purchase:

　　Suggest purchasing original high-definition reflective screens; Check the durability of the appearance, the firmness of the car suction cups and fixtures; Check whether the query and search input methods are simple and convenient, and whether the query results are accurate and fast.

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