Will the magnet interfere with iPhone's compass?
1024687
My iphone behaved normally as far as the compass was concerned. However the charger would not charge my phone and I had to return it.
1541478
It does not have a magnetic compass. However it does have a "compass function" which gives you your direction based on GPS data. In other words it can tell you you're going 50 degrees N/NE, while you're moving. But you can't stand in one place and get a direction for north, like you would with a regular compass.
407702
Yes, it shouldn't be a problem. I don't have a Smart Cover but the case that I have still wakes up my iPad when I flip it open. It hasn't shown interference with the magnetic sleep wake feature of the iPad. It works like nothing's there!
1514801
No I have not had problems with the magnets ruining one of my cards but I have had problems with I guess the magnets in the case preventing certain apps from working. Also another problem that I had is when you talk on the phone in the case because of the magnets in it it's hard to hang up a call like you really have to press two buttons that one time to be able to hang up a phone call while it is in the case
1371958
No because measuring part holds the magnet away from surface. - no contact of magnet
302363
I do not think that this would work because of the magnetic holder; however I don't really know. I agree with Donna that this is one of Apple's few big mistakes. We sent it back!
1515471
It will interfere with your smart phone's magnetometer, which will render applications which use it non-functional: compass, arrow on map applications, programs like Google Sky Map, etc.
1038520
You should build a non-magnetic globe around the magnet. There is another product which is exactly this, so if you didn't buy yet you should prefer buy the globe instead
979480
No, your phone has a metal plate, not the magnet. The magnetic part is on the large piece that attatchs to your CD player. In any sense I think it takes a large magnet to mess with your stuff.
1654278
Since I attached the magnet the compass still works OK but the directional arrow on google maps rotates randomly, makes it very difficult to know which way your traveling. After I removed the magnet the phone still acts the same way. I can't be sure if the magnet was the cause but its pretty broken now and it may be as its quite an old iPhone 4S or that the magnet permanently damaged it, hope this helps.
557189
It orients to a magnetic north, but if you plan to use this for hiking or navigating unknown areas -- I'd pay a few more dollars and get a "real" compass. It works, but it truly isn't a device you should rely on for "stable directions".
1232410
After reviewing Apples' support forum, there seems to be little consensus about the potentiality of magnets damaging devices (I'd speculate any device, Apple or other). Small magnets on cases seem to be safe, but warnings are given for "strong" magnets. I loved the idea of this holder, but I'd have to error on the side of precaution and not purchase unless I read an affirmative answer. Everyone else who says "it hasn't damaged my device yet" could be lucky or just biding their time. I have read the the likely damage is data loss, but not permanent component damage. I can't afford either. At best, it seems unknown or uncertain. After reviewing Apples' support forum, there seems to be little consensus about the potentiality of magnets damaging devices (I'd speculate any device, Apple or other). Small magnets on cases seem to be safe, but warnings are given for "strong" magnets. I loved the idea of this holder, but I'd have to error on the side of precaution and not purchase unless I read an affirmative answer. Everyone else who says "it hasn't damaged my device yet" could be lucky or just biding their time. I have read the the likely damage is data loss, but not permanent component damage. I... » Read More After reviewing Apples' support forum, there seems to be little consensus about the potentiality of magnets damaging devices (I'd speculate any device, Apple or other). Small magnets on cases seem to be safe, but warnings are given for "strong" magnets. I loved the idea of this holder, but I'd have to error on the side of precaution and not purchase unless I read an affirmative answer. Everyone else who says "it hasn't damaged my device yet" could be lucky or just biding their time. I have read the the likely damage is data loss, but not permanent component damage. I can't afford either. At best, it seems unknown or uncertain. « Show Less
1240413
I use GPS all the time with no problem. I also put both magnets for maneuverability.
202836
Yes but because you have to put a tiny magnet on the side of your phone (or case), I would suggest adhering it to a case. Especially because of how snug cases are designed, should you ever change your mind, you won't be a me to fit your iPhone into a case with the Magnet on it even though it's tiny. That said, I love this Tetrax thing!! If it ever wears out, I will buy another one in a heartbeat.
1035543
I've not tested that, but I assume the magnets will be under your bike, and your cell will be in your pocket, about 4 feet or more apart? If so, you won't have a problem, I've used my cell with the magnets on the table in front of me, less than 2' away, without any interference. Let me know if it triggers the lights, I may try that too. Ride safe!
733168
I use GPS all the time and haven't noticed any difference. When mounted, the magnet is dead center on the back of my phone. Maybe there aren't any GPS receivers right there. As I mentioned in another post, the magnet isn't quite strong enough to hold the metal plate through a thin otter box. Maybe that is the reason the GPS isn't being affected.
2240513
I've worn mine while working on my laptop and smartphone and had no trouble other than the typical bracelet being pushed into my arm when in contact with the laptop. I've never had a problem with the magnets affecting the computer systems.