Legend has it that wrap your phone with aluminum foil leaves him in secret. It’s not a legend, it’s true as we were able to verify for ourselves, although that doesn’t mean it’s a good idea.
The creative idea of make an aluminum suit for your cell phone to make its location impossible. It works, it works (under certain conditions), but it has no advantage over options that are simply simpler and don’t involve the use of kitchen equipment.
What happens if you wrap your phone in aluminum foil?
Wrap a cell phone with aluminum foil This can leave you incommunicado. Yes, it’s true. We were able to verify it, although it is not advisable to trust it, since it depends on whether you have wrapped it very well and with enough layers. Otherwise, connectivity is maintained (although reduced). In our tests, the first thing that is lost is Bluetooth, while with more powerful packaging we already get the Faraday cage effect.
This is really not a mystery or a new discovery, since there are already all kinds of accessories such as bags and covers with this same concept, for around 9.99 dollars and a little more stylish than an aluminum suit. Are particularly popular those that block NFC/RFIDto prevent contactless payments with mobile phones.
The first foil did not completely cut off all communication. Only Bluetooth turned off
These types of cases can be useful for those who need extra security for their phone because it’s easy to put on and take off. However, unpacking the mobile from its aluminum packaging is not practical and even less recondition it. If we don’t make sure to seal it properly, we won’t even leave it secret or untraceable.
With an aluminum suit we can leave our cell phone completely WiFi, Bluetooth and data incommunicadowithout being able to access GPS, so it “disappears”, but you get no advantage over two simpler options: airplane mode and simply turning off the phone.
A second, more waterproof layer of aluminum was necessary to completely insulate the mobile.
If you don’t trust airplane mode, turn off your phone completely This is a much better way to keep your cell phone secret. Only a handful of cell phones, like the latest Google Pixel 8, reserve some power to stay reachable when turned off. If you have another mobile phone, when you turn it off, all its components lose power and, therefore, there is no connectivity of any kind.
So while wrapping your phone in aluminum foil insulates it from the outside, It’s not practical at all and you risk scratching it.. If you want to isolate your mobile from the connection, turn it off completely or activate airplane mode, making sure that Bluetooth and WiFi are also turned off.
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