HTC followed the trend towards quad-core introductions during the first day of Mobile World Congress (MWC). HTC unveiled two new Android smartphones, the quad-core HTC One X and the dual-core HTC One S.

The One X comes running Android 4.0 (Ice Cream Sandwich) and features a Tegra 3 quad-core processor. The One X boasts a 4.7-inch Super LCD display, 8-megapixel camera, with a special imaging chip that allows it to snap one picture every .07 seconds. The One X is also the first HTC phone to come running the latest version of HTC’s customer UI, HTC Sense 4.0. 

Unfortunately, users here in the United States will see a scaled down One X. The device will hit AT&T shelves, as well as its brand new LTE network, in April but HTC will replace the quad-core Tegra 3 with a 1.5 GHz dual-core SnapDragon S4 processor from Qualcomm.

The HTC One S, which will start out on T-Mobile’s network with support for HSAP+ 42Mbps, is a step down from the HTC One X but still a capable smartphone. The One X features a 4.3-inch qHD touchscreen and dual-core SnapDragon S4 processor.

HTC did not released exact pricing and availability for One X and One S.