I was wrong about the memory, howerver:
The problem we found is that a nearby magnet will affect the internal magnetic sensors inside the phone. The compass won’t read correctly,” explained Michael Paul, an engineer at K&J, “What’s worse, if you stick a strong magnet to the phone, you could slightly magnetize some steel components inside, making them act like weak magnets. This can make it difficult to properly calibrate the compass.”
You might think it’s unimportant because you never use the compass app, but that doesn’t mean other apps aren’t relying on the same sensor. Google Maps, for example, uses the sensor to detect which way the phone is facing, and a number of games also rely on it to work out your orientation.
Magnets aren’t likely to **** your smartphone, but there’s a possibility they’ll mess some pretty important aspects up.
This is something that Apple considers in case and accessory design. In Apple's Case Design Guidelines, there are sections on Sensor Considerations and Magnetic Interference, including the line, “Apple recommends avoiding the use of magnets and metal components in cases.”
Manufacturers have to ensure that the built-in magnetic compass is not affected by their cases. There’s also specific mention of the iPhone 6 Plus, because of potential problems magnets can cause for the autofocus rear camera with optical image stabilization.
It seems as though magnets aren’t likely to **** your smartphone, but there’s definitely a possibility they’ll mess some pretty important aspects up, so why take the risk?
Read more:
http://www.digitaltrends.com/mobile/how-magnets-really-affect-phones-hard-drives/#ixzz4K2Yu7D9h
Interesting.
My wife uses a similar mounting mechanism for her iPhone in her car, and, as I understand it, the magnet is in the device that clips onto the vent--inside the iPhone's case is just a metal plate for the magnet to attract itself to. As far as I know, her iPhone mapping hasn't ever gotten her lost--I would know, as, pre-iPhone,
I was her navigation device, available by phone 24 hours a day--but this is not to say it doesn't effect it at all.
