A popular Korean Media site called DDaily claims that the Galaxy S4 will support wireless charging, the type with back cover with wireless charging support and its charging dock we have seem before, both will be sold separately.
DDaily also reported that Samsung considered using an alternative, more advanced wireless charging technology known as resonant magnetic coupling. That, in theory, would allow the Samsung Galaxy S IV to be charged from a distance of up to around 2 meters, so you wouldn't have to put the Galaxy S IV on top of a Wireless Charging dock.
The current specs rumored for Samsung Galaxy S4 features an Exynos 5 Octa (8-Core) CPU, Mali-T658 (8-Core) GPU, 4.99″ SuperAMOLED Full HD Resolution Display, 2GB of RAM, 13 Megapixel Rear facing Camera capable of shooting 1080p Full HD Videos at 30FPS, 2 Megapixel front facing camera capable of shooting 720p HD Videos and run Android 4.2.1 Jelly Bean directly from the retail box.
If rumors are to be trusted, the Samsung Galaxy S IV is to be announced within a few months, with an appearance at MWC next month still not being out of the question. However, the smartphone isn't likely to be commercially available earlier than May 2013 according to mutiple sources.
Apple might also be planning to create an iPhone that is capable of charging without contraptions. The next iPhone (5S or 6) is possibly due to come out on August this year, while the Samsung Galaxy S IV will be formally launched on the 14th in Times Square New York.
According to SamMobile, Samsung will use Qi technology for wireless charging on the Galaxy S IV. On the other hand, Apple will not use this wireless technology, which Samsung helps develop. Instead, they will rely on an in-house technology that they have developed for wireless charging.
Other mobile companies that have taken to wireless charging are LG, HTC and also Nokia, among others. This new feature will be quite useful for people who do not have time to put down their phones for a moment to charge or those who do not like bringing wires and contraptions.
Samsung Galaxy S 3 has not been forgotten by the number one smartphone maker, even if the much-awaited Galaxy S 4 is already coming in the picture in less than a couple of days. On the contrary, the S 3 will receive a boost from the company with improved battery and even wireless charging capability.
Furthermore, the Samsung Galaxy S 3 display will also be improved. With the recent price slash and additional colors to choose from, the S 3 is not going to lose its steam and take the backseat after all. People are still going to want to own this cool Samsung device at a lower price that not even Apple can beat!
Also, there is no need to worry about it not being upgraded because it will remain one of the most popular Samsung smartphones ever, next to S 4, we believe, that is if the company does reach 100M unit sales for its new flagship device.
We were wrong when we reported about Samsung Galaxy S IV will comes with Wireless charging, but not to worry, it should be fairly easy to add the functionality by swapping back plates and slapping the device on a wireless charging pad.
Pictures above show the back cover replacement straight out of China. You then place the device with its new cover on the charging pad for the wireless charging to happen. The charging pad itself has to be wired up as expected.
See a video below regarding to Wireless Charging.
The Samsung Galaxy S4 wireless charging kit is now available directly through Samsung's accessory store. With the Samsung Wireless Charging Pad, you can charge your phone without connecting ports or cables. Simply place your phone on the Wireless Charging Pad and it will begin charging.
The LED indicator on the charging pad will turn green if your phone is properly charging or will turn yellow if your phone is not in the correct placement on the pad in order to charge effectively. The mobile charging pad requires that your device supports wireless charging. For Galaxy S 4, make sure you have installed the Wireless Charging Cover to enable wireless charging on your device. "
Go totally wireless with the Galaxy S® 4 Wireless Battery Cover. Easily installs, replacing your existing battery door and allowing on-the-fly, cable-free charging with any Qi-enabled charger base.