LG first unveiled the Optimus 4X HD back at Mobile World Congress in February. It's been a long time coming, but the Optimus 4X HD is now available in much of the world - even if it's only available outside of a plan (unlocked) here in the U.S. The Optimus 4X HD is the first quad-core LG smartphone, and it boasts a very high end spec sheet.

The LG Optimus 4X HD is a big phone, like most of the other flagship smartphones to hit the market this year. Due largely to its very nice 4.7-inch, IPS touchscreen display, which offers 720p HD resolution, LG's Optimus 4X HD measures 133.0 x 68.2mm x 9.5mm, which makes it slightly shorter and narrower than HTC's One X, but also half a hair thicker. At 133g in weight, the phone doesn't feel like a total brick in your purse or pocket.

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