The LG Optimus 4X HD is a slate, multi-touch smartphone running the Android operating system.

The Optimus 4X HD was the world's first smartphone announced with a quad-core processor along with the HTC One X and the Samsung Galaxy S3 and the fourth phone in the LG Optimus-Android series.

[2] The LG Optimus 4X HD is the first phone to feature Nvidia's Tegra 3 chip offering significant mobile gaming performance at release.

The device comes in black and white The LG Optimus 4X HD also includes a 12-core graphics processing unit.

The phone also includes a Li-Ion 2150 mAh battery, stand-by up to 730 h (2G) / up to 686 h (3G), talk time up to 9 h 20 min (2G) / Up to 10 hours & 50 minutes (3G).

The LG Optimus 4X HD has very narrow side bezel, and includes a compact chassis.

The front of the device is protected with a single piece of Gorilla Glass 1 to prevent scratches and occasional falls.