The LG Optimus 4X HD is LG’s first foray into the quadcore world. The 4X HD is powered by an NVIDIA Tegra 3 processor, but that’s not its only highlight. It also has a 4.7-inch display with a 1,280-by-720 pixel resolution. And yes, that display is gorgeous. And yes, the phone's fast. See also: LG Optimus 4X HD review
The Optimus 4X is super thin at 8.99mm, but it isn’t going to win any awards in the beauty department. With its black and gray color scheme, the 4X HD pretty much looks like your standard LG Optimus phone. The phone feels durable and high quality, however.
Back to that quadcore processor: NVIDIA’s Tegra 3 (now referred to as the 4-PLUS-1 quadcore processor) has a smaller fifth core to help phones conserve battery life. The fifth core handles less demanding tasks such as active standby and music playback. I couldn’t test the battery in my brief hands-on demo, but performance seemed speedy and video playback looked gorgeous on that high-res display.
The 4X HD’s display is a True HD IPS display. Blacks look very deep while colors look vivid without being oversaturated. The Optimus 4X HD runs Android Ice Cream Sandwich and has a 8-megapixel camera with a back side illuminated sensor. I took a few shots in LG’s elbow-room only booth and was impressed with how the photos looked. The 4X HD is one of many quadcore phones to come at Mobile World Congress. We can’t wait to put these phones to the test.
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