Review: Samsung Galaxy S4
The list of cool things the Galaxy S4 can do is astonishing. Right out of the box, without downloading a single app, you can perform a plethora of magic tricks. It follows your eyes, and it will pause a video if it senses you looking away.
Everything you loved about the S III, but more of it; Big battery lasts all day; Super AMOLED 1080×1920 screen is one of the sharpest you can buy, and it uses the new, more durable Gorilla Glass 3; MHL 2.0 port lets you connect to an HDTV; Crisp daylight photos.
Samsung's software is big bag of "why?" Construction is cheap, and there's nothing exotic or inspiring about the hardware design; Camera software is kludgy, and low-light shots get noisy quickly; Pricing varies widely (see above) but leans toward expensive