The new BlackBerry Z10 hits stores today, which is a big test to see if BlackBerry can reinvent itself.The launch of the Z10 is exciting because it means a lot of firsts for Blackberry. This is the 1st major phone launch since RIM rebranded itself as Blackberry.The Z10 is also the first flagship BlackBerry phone without a keyboard OR buttons.AND the Z10 is the first flagship BlackBerry phone to run the all-new gesture based BlackBerry 10, or BB10, operation systemNow let's cover the specs… The Z10 boasts a 4.2 inch display, 16GB of internal storage, an 8 megapixel rear camera with 1080p recording, and a new text prediction function.The company hopes the Z10 will revamp their image and make them a major competitor for top dogs like Samsung and Apple, but how do the phones differ?The iPhone 5 and BlackBerry Z10 have the same $199 price tag, but the Z10 is longer, wider, and a little thicker than the iPhone5, but nothing compared to Samsung's bestselling Galaxy Note 2.The iPhone 5 and Z10 both run on the high-speed LTE networks, and have similar processing speed.The Z10's removable battery can achieve 10 hours of talk time, compared to the Iphone 5's 8 hours.Blackberry's CEO Thorsten Heins actually said he believes the iPhone is outdated, but that's probably because BlackBerry has been losing ground to Apple's iPhone since its launch in 2007.Now, when it comes to the new Samsung Galaxy S4, its Exynos 5 processer is a true beast. I'm not sure is the Z10's dual-core CUP processor can quite compete, but it's a close race. The Galaxy S4's screen is slightly larger at 5 inches and has a 1080p HD AMOLED display, which tops the Z10's 720p display.The S4 is powered by Android 4.2.2 Jelly Bean, but we don't know yet if its better than the Z10's new BB10 OS. The BlackBerry Z10 is available on AT&T, T-mobile, and Verizon, but NOT Sprint Nextel.