HTC One X has a 4.7″ Super LCD2 720p screen. The international version of the One X ships with a quad-core Nvidia Tegra 3 CPU processor that is backed by a full gigabyte of RAM and 32 gigs of flash memory. It has a rear camera of 8MP. At the time of its release, it ran on Android 4.0.3 ICS.
HTC has stopped providing official updates to this phone as it is almost 3 years old now. But that does not mean you cannot update this device to Android Lollipop. Resurrection ROM is available for the HTC One X which will install Android 5.0.2 on the One X. It is based on the popular CM 12 ROM. Follow the guide given below.