On the other hand, also carries a camera of 13 megapixels with which, in addition to making good photographs, will also be capable of recording Full HD video for sharing later with family, friends or upload them directly to social networks. But beware, not all ends here. And this Samsung Galaxy S4 also features the latest version of the mobile platform Android 4.2.2 Jelly Bean on the user interface Samsung TouchWiz .
Air View:
This feature lets you hover your finger a centimeter or two over the phone's display and view extra information or drop-down menus in apps. I found it the most useful in the email app, which lets you hover over a message in your inbox and get a quick preview of what it says. But it doesn't work with most apps, only a few that are made by Samsung and the specially designed Flipboard app. And it's still not as instant as actually touching the screen. There's a noticeable delay from the time you hover over the screen and when the action actually appears.
Air Gesture:
When you switch on Air Gesture, you can scroll through photos in your gallery, browse websites, or answer incoming calls by waving your hand over the screen. Air Gesture was one of the most talked about features when the Galaxy S4 was first introduced, but it also happens to be one of the most impractical. I could only think of one scenario where waving your hand over the screen is better than actually touching it, and it's the example Samsung gave me –– Air Gesture is great if you're in the car and you need to answer the phone without looking.
Smart Stay:
Smart Stay uses the Galaxy S4's front-facing camera to detect when you're looking at it and prevents the screen from going dark. Out of all the extras in the Galaxy S4, this is by the most useful. It solves a real problem with smartphones and tablets (How many times has your phone's screen gone dark while you were in the middle of reading an article?) and it's a feature you should always keep switched on.
Smart Scrolling:
You've probably heard that the Galaxy S4 has a special eye-tracking technology used for scrolling. That's not entirely accurate. Like with Smart Stay, Smart Scrolling can detect when you're looking at the phone. You then tilt the phone forward or backward to scroll through pages. But smart scrolling didn't always work well for me, and like Air Gesture, I found it easier just to touch the screen to navigate the old-fashioned way. There's no real advantage to tilting your phone to scroll.
Camera:
The camera software is really impressive, packed with a bunch of clever shooting modes that are easy to navigate to. (A lot of smartphone cameras tend to bury their extra modes.) Camera mode is called Eraser, which can automatically detect people moving in the background and remove them to create a nearly perfect image.
Conclusion
There has been a ton of hype and build-up to this device, and ultimately, it left us feeling cold. The S 4 feels uninspired. There are small spec bumps from the previous generation and there's a ton of software which will largely sit unused. There's just no wow-factor here.
I had the HTC One with me during my hands on time, and the difference is like night and day. For starters, the One is noticeably faster in every context. When flicking between screens, opening apps, and taking photos there was clear lag on the Galaxy S IV, whereas everything was almost instantaneous on the One. To be fair, this wasn't the final production version of the S IV, and who knows which processor was in the model I had. There's a chance it'll be faster at launch.
But even purely from a design perspective, the One absolutely crushes the S IV. When you pick up the One, you feel like you're holding something amazing, both in the build and the screen. When you pick up the S IV, you feel like you're holding an S III with a few extra bells and whistles.
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