It is assumed that the wireless charging of latest Samsung smartphone Galaxy S4 will use a couple of accessories that work according to Qi , using the principle of electromagnetic induction. The disadvantages of this method are the need for proximity charger and a base station that is connected to the power system.
In addition, the induction of heating technology sometimes causes problem if closely located to the charger metal surfaces. As you know, in microwave ovens are prohibited from using metal utensils, and here there is a similar phenomenon. The built-in battery charger protections if heat-generating objects reduce the radiation power or even disable it.
As explained by Samsung representatives , the company sees its future with the standard wireless charging WiPower, promoted by A4WP, which includes Samsung and Qualcomm. Using magnetic resonance technology standard WiPower allows to charge mobile devices at some distance from the base does not impose strict requirements for their orientation, and also allow to simultaneously charge multiple devices.
Equipment operating on WiPower standard, will appear only at the end of this year. Obviously, in the case of Samsung products Qi standard will be only a temporary solution for wireless charging.