Samsung believes the S 4 will set the new standard.
Apart from the larger screen and upgraded processor, the S 4 has a battery that's 20 percent larger than that of the S III. Samsung didn't say if that translates into a longer battery life — the added capacity might be gobbled up by the bigger screen or other internal changes.
The S 4 comes with a built-in infra-red diode, so it can control an entertainment center as a universal remote. This is a feature that has showed up in Android tablets before.
The S 4 comes with several new technologies intended to help users interact with the phone. For instance, the screen now senses fingers hovering just above the screen, and some applications react. The Mail application shows the first few lines of an email when a finger hovers above it in the list, and the Gallery application shows an expanded thumbnail.
Users can control some other applications by making gestures in the air above the phone. In the browser, you can command the screen to scroll up by swiping from top to bottom a few inches from the phone.
The Camera application can now use both the front and rear cameras simultaneously, inserting a small picture of the user even as he's capturing the scene in front of him.
