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Will a Magnet Destroy Your Smartphone?

Older electronic devices such as CRT monitors and televisions are susceptible to magnetic fields. For example, when you place a strong magnet near a TV, you may find that the TV screen may be distorted. So will magnets have a similar effect on smartphones? Will a magnet destroy your smartphone? Let's find out.

Will a Magnet Destroy Your Smartphone? Will a Magnet Destroy Your Smartphone?

The truth is that magnets do affect some functions of mobile phones, provided that the magnets have very strong magnetism. There are magnets inside the phone itself to achieve some functions, such as wireless charging, which will be affected by super magnets. In addition, sensors inside the phone, such as the digital compass, can also be affected by the magnet, causing errors in the display. However, magnets with less magnetism, such as small magnetic blocks on the holster of mobile phones, magnetic mobile phone holders, etc., generally do not affect the functions of mobile phones. The mobile phone holsters launched by many mobile phone brands such as Samsung, Apple, Xiaomi, etc. are equipped with magnets. When the holster is buckled, the mobile phone screen becomes black. When the holster is opened, the mobile phone screen becomes bright. It can be seen from this that mobile phone manufacturers have also proved through experiments that magnets with relatively small magnetism do not affect circuit boards, GSM signals, and GPS navigation signals of smartphones. As for the influence of magnetic mobile phone holders on mobile phones, Foxconn's Professional Mobile Phone Product Testing Laboratory (FIH) also conducts special tests on the antenna signal, call quality, and electronic compass function of mobile phones. The test on the antenna signal indicates that the magnet has no significant effect on the cell phone signal. The results of call quality tests also show that magnets have no visible effect on phone calls. The only thing affected by the magnet is the compass pointer. Due to the influence of the magnet, the surrounding magnetic field changes, and the compass pointer needs recalibration, after which it can be used normally. Before using a magnetic phone holder, you need to attach an iron sheet (magnetic disc) to the phone because the magnetic force of the holder is not strong enough to directly hold the phone. The magnetic disc is similar to a magnetic horn. The magnet in the horn is equipped with an iron shell to prevent leakage of the magnetic field. The magnetic field of the magnet will not leak outside the horn, forming a closed magnetic field. So, remember, only magnets with strong magnetism will have a greater impact on mobile phones, such as industrial magnets. In addition, if you often go to factories having strong magnetic devices, you also need to pay attention to the influence of magnets on your smartphones.


Thank you for reading our article and we believe that you've found the answer to the question of whether will a magnet destroy your smartphone. If you want to find out more about magnets, we advise you to visit Stanford Magnets for more information. Stanford Magnets is a leading magnet supplier across the world, that has been involved in R&D, manufacturing, and sales of magnets since the 1990s. It provides customers with high-quality rare earth permanent magnetic products such as neodymium magnets, and other non-rare earth permanent magnets at a very competitive price.

About the author

Cathy Marchio

Cathy Marchio is an expert at Stanford Magnets, where she shares her deep knowledge of magnets like Neodymium and Samarium Cobalt. With a background in materials science, Cathy writes articles and guides that make complex topics easier to understand. She helps people learn about magnets and their uses in different industries, making her a key part of the company's success.

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