The Samsung Galaxy S 4 may look pretty similar to its predecessor on the outside, but the truth is it's a huge upgrade. You get a larger screen of more than twice the resolution, a chipset that offers twice the processing power, a larger battery and better camera in a shell that's actually more compact than the Galaxy S III.
And that's not even all - Samsung also invested quite a lot of effort in the software and made sure the Galaxy S 4 ships with the latest available Android release garnished with a boatload of exclusive software features. Sure some of them are mere gimmicks, but many are genuinely cool and/or useful and we can bet a huge portion of them will catch up.
Of course, despite all the war gear it carries, the Samsung Galaxy S4 isn't invulnerable. The fact that the smartphone didn't address the main criticism about its predecessor, the design, means that competitors like the HTC One and Xperia Z still have their chance. It's not going to be easy, mind you, and the Galaxy S4 enters the battle as odds-on favorite.
And on the screen:
...The somewhat underwhelming first experience however all but changed when we switched on that oh-so-gorgeous 5" FullHD AMOLED display. The thing is absolutely stunning - every AMOLED fan will love it and even those who aren't too fond of the oversaturated colors will have to admit that it's a brilliant piece of engineering. And don't worry - as usual, Samsung has included a setting to tune the saturation down for a more natural look.
But the Samsung Galaxy S 4 screen's strengths do not end with the unrivaled contrast and extra punchy colors. It also offers viewing angles so wide that combined with the 441ppi pixel density, they make the screen look as if printed on paper. The impressively low-reflectivity also contributes to that effect and bodes very well for the outdoor performance of the display.