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When you buy a new mobile, it is best to put a cover on it. This way you prevent the back from scratching when leaving it on a flat surface, in the face of falls, that the terminal suffers blows on the frames or the back breaks. They are very common accidents in mobile phones, since it is the object that we carry the most in our hands. In addition, taking into account that most terminals have glass backs, the fragility and the chances of breaking increase considerably. One of the disadvantages of using a cover is that it could affect the WiFi signal or coverage, but… do they really affect the signals? If so, what types of sheath?
Yes, there are covers and housings for the mobile that can affect the coverage or WiFi signal of your mobile. Especially those robust, with aluminum components or the typical bumpers, with metal frames. These covers have a 'faraday cage' effect. That is, they act as a barrier and do not let wireless signals through. Therefore, if you have an aluminum case or one with these components, and your coverage is low or you do not have a good WiFi signal, it may be because of this accessory. There are cases that incorporate a magnet to be able to attach it to different accessories, and these can also affect the coverage of your device. In addition to affecting the compass and internal components.
If they affect the signal, why are there covers like this? The manufacturers of the terminal itself do not usually make housings with these components. These types of covers are usually distributed by third-party manufacturers, many times without any type of verification by the terminal's own firm, since they only need the dimensions of the product and a model or the terminal itself.
Silicone, plastic or leather covers do not affect as much, since they let the signals pass. However, it is best to look for a cover where we see that there is no type of component covering the antennas. For example, like this one that can be purchased on Amazon. In the image you can see a small hole for the antennas, and thus let the coverage or Wifi signal pass.
This silicone case should not affect the WiFi signal and coverage of your mobile.
Other drawbacks of using mobile phone cases
The covers or housings not only affect the Wi-Fi signal and the coverage of your mobile. They can also cause problems with the microphone or speaker. Especially those that cover all the frames and leave a small hole for the microphone or audio hole. The cheaper ones, and from third-party manufacturers, may not be very well adapted and saturate the sound or prevent the audio from passing through the microphone. Especially in silicone cases. These sleeves also collect more dust, and particles can also get into the small holes and cause plugging in the audio.
What is the perfect cover?
To avoid all these problems, it is best to use silicone or polycarbonate covers. Those made of leather are also useful. These covers should have a hole large enough so that the speaker and microphone at the bottom will not be clogged. Discard those that have circular dots. There are also housings that leave the lower area completely uncovered, although these are somewhat more fragile, as they can damage the frame in case of falls.
We can also opt for official covers and covers. Or if we don't want to spend so much money, buy from trusted brands: Elago, Spigen Olixar etc.
