Samsung Galaxy S4 vs. iPhone 5, HTC One, and BlackBerry Z10

It's been nearly nine months since the highly successful Samsung Galaxy S3 was first released in the U.S., and today, the Korean phone company officially announced its successor, the Galaxy S4, at a New York press conference.

Packed with a 5-inch screen, a 13-megapixel camera, and either a quad- or octo-core processor (depending on where you are), the GS4 is dressed to the nines with hardware goods.

So how does it stack up against its current competition? Based purely on a spec-by-spec showdown, we line up the handset with three other popular flagships, each of them on different OS platforms: Apple's iPhone 5, the HTC One, and the BlackBerry Z10.