Faraday pouches, RFID wallets and privacy screens.
We don't sell these. They're cheap and sold everywhere, so here's what's worth having, what not to overpay for, and where to get it.
Cheap ones work fine. Don’t overpay.
Faraday pouch for car keys
Stops thieves picking up your keyless fob's signal from the hallway and relaying it to the car.
You don't need an expensive one. In Auto Express's January 2026 test the winner was the Hilka Pro-Craft twin pack at about £8, and the £25 pouch came third as “far too expensive”. Whatever you buy, test it: key in the pouch, stand by the car, try the door.
Source: Auto Express test, Jan 2026See options on Amazon →Faraday bag for your phone
Blocks mobile signal, Wi-Fi, Bluetooth and GPS while the phone's inside.
Handy for meetings or a switched-off evening. Test it: seal the phone in and ring it. If it rings, it isn't working.
See options on Amazon →Privacy screen protector
Stops the person next to you on the train reading your screen.
Buy the one made for your exact phone model. It darkens the screen from the side; that's the point.
See options on Amazon →USB data blocker (or a charge-only cable)
Lets power through to your phone but physically leaves out the data pins, so a public charging point can only charge.
Your phone already asks before it allows data over USB, so this is belt and braces for airports, trains and hotel lobbies. Researchers showed in 2025 that the asking can be bypassed, which is why a blocker is still worth a couple of quid. A charge-only cable does the same job with one less thing to lose.
Source: ChoiceJacking, USENIX Security 2025See options on Amazon →Webcam cover for your laptop
A sliding cover over the camera, so nothing can film you when you don't mean it to.
The cheapest certainty on this page. It does nothing about the microphone, and your phone and laptop already show a dot when the camera is on, so treat it as a backstop, not a fix. A bit of tape works too.
See options on Amazon →RFID wallet or card sleeves
Contactless cards can't be read through them.
Peace of mind more than a must-have. UK Finance told Which? in February 2026 that there are no recorded cases of criminals reading cards with a reader in a public place. Cheap sleeves do the same job as a pricey wallet.
Source: Which?, contactless cards explainedSee options on Amazon →A plain case for your Pixel
Protects the phone; says nothing about you.
Any decent case for your exact model will do. No need to pay extra for a logo.
See options on Amazon →As an Amazon Associate we earn from qualifying purchases. It's a few pence a sale and it never changes what we recommend.
Wondering about the rest of the gadget lists: data blockers, webcam covers, microphone jammers, camera detectors? Our guide to gadgets that physically block tracking sorts the useful few from the gimmicks, with the figures behind each one.
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