Originally Posted by macmovr
I had no idea the s3 was wireless charging. does that mean all it needs is a pad to lie it on? Not sure if I understand?
None of the S5 variants that I have seen will wirelessly charge by simply placing them on a charger. You need to add two things - the charger and a coil. The coil is the part that is inside the phone, a sort of receiver. The coil looks like a thick sticker and you can either buy an optional battery cover from Samsung that has a coil in it.. or add a third party coil to the inside of your existing battery cover. This is in contrast to say a Nexus phone where the coil is not optional - it is already built into all of the Nexus phones.
So it's odd to say that you are upgrading from a S3 to a S5 because of wireless charging.. when both the S3 and S5 need to have the same components added to add wireless charging. You seem to think that the coil is standard on S5's and it isn't.
Note that the optional Samsung wireless battery cover is thicker than the standard battery cover, which means that some cases will no longer fit your phone. And if you add a coil to the inside of the standard S5 battery cover, you need to choose a coil that is thin or you may displace the battery cover and lose the watertight seal.