my mother bought a cheap rotating case for her ipad. it contains magnets to enable the auto sleep function on the ipad. is that alright, or would she have been better buying an official one for peace of mind?
Technically, not all magnets will effect the sensor or the electronics, it really just depends on the strength. I've never had any issues with a magnetic cover for the iPad. However, I have heard of some problems with magnets and iPhones. Really though, it depends on the strength and position.