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A good phone case is actually the best way to protect your phone, so how to choose a good phone case correctly?

1. Appearance of the mobile phone case

When purchasing a color cover, first check whether the background color of the color cover is similar to the color of the surface. Simply put, the plastic material used for the white shell should preferably be white, and the plastic material used for the black shell should be black. If the base color is similar to the color of the surface, even if the surface coating of the color case is scraped off in the future, it will not become unsightly. The specific inspection method is to first turn over the color shell to see if its inner surface color is the same as the outer surface; secondly, check whether the color of the color shell is uniform; check again whether the printed pattern on the color shell is within the specified range, if the edges of the pattern are all If it extends to the inner surface of the color shell, it means that the craftsmanship of this color shell is not good enough, so it is best not to consider it; finally, be sure to remember to check the shell body for scratches and other problems.

Mobile phone case purchase criteria

2. Mobile phone protective shell buttons

If you buy a mobile phone protective case with an open key or a keyboard, you should pay attention to the quality of the keys when purchasing, especially the color case that imitates the appearance of other mobile phones, such as 8210 imitation 8250 color case, 8210 imitation 8310 color case, and more Pay attention to the feel of the keys. Generally, the keyboards that come with color shells on the market are divided into soft rubber keyboards, plastic keyboards and soft plastic composite keyboards according to the material. The advantage of the soft rubber keyboard is that it is cheap and does not damage the contacts of the mobile phone keyboard. The disadvantage is that the hand feel is generally soft, and the characters printed on the keyboard are easy to paint. The advantage of a plastic keyboard is that it has a high degree of simulation, a better feel, and is not easy to fade, but the disadvantage is that it is too hard and it is easier to damage the contacts of the mobile phone keyboard. Soft plastic combination keyboard feels good (NOKIA) 8210, 8250 original keyboards belong to this category), high simulation, not easy to fade, but the price is relatively expensive. When choosing a mobile phone color case with a power button, you should pay attention to whether the power button is easy to use. Some color shell power keys of poor quality are not designed to meet specifications, which may easily cause inconvenience in switching on and off the phone.

3. Mirror surface of mobile phone protective shell

Generally, the mirror surface of the mobile phone protective case that can be found on the market is separated from the main part of the mobile phone protective case, and the two are connected by a layer of double-sided tape or melt adhesive. Considering the firm relationship , it is recommended to refer to the following methods when purchasing: If the mirror surface and the shell body have a certain curvature (not a plane) and the contact area between the mirror surface and the shell body is small, you should choose a color shell that connects the mirror surface and the shell body by melt adhesive bonding. (such as the shell of Nokia 8210, 8250, 3310 and other mobile phones); if the mirror surface and the shell body are both flat, and the contact area between the mirror surface and the shell body is large, you should choose a color shell with double-sided tape to connect the mirror surface (such as Siemens 3568i mobile phone, Samsung) A series mobile phone, Motorola V series mobile phone, etc.

Fourth, the degree of conformity of the mobile phone protective case

After installing the mobile phone protective case, you should carefully check whether the mobile phone protective case matches the mobile phone. The specific test method is: after installing the case, firstly check whether the case is distorted and deformed with the eyes; secondly, press the case body with a relatively soft force, if there is a relatively obvious sound, it proves that the protective case of the mobile phone is not very different from the mobile phone. match, another choice is required.

5. The shaft part of the mobile phone case

For a flip-down mobile phone such as Ericsson or Samsung or a foldable mobile phone from Motorola or Samsung, after replacing the mobile phone case, pay special attention to whether the hinge part is too loose or too tight, and whether it makes an unexpected sound when it is folded, such as a phone case. The case is too tight to make a harsh friction sound, it is best to compare it with the original case before confirming.