There are many reasons to dismantle a device, including changing the battery, repairing some internal parts, or if you are just curious about what's inside. Granted, the last point is primarily for tech geeks, with most people not really caring about what is inside, as long as the device itself works as promised.
Teardowns are especially useful for unibody devices with “non-removable” batteries. Along those lines, the world's first quad-core phone and HTC's flagship device, the One X, received the tear-down treatment, courtesy of Chinese website, PConline. The process revealed the highly acclaimed Nvidia Tegra 3 quad-core processor, HTC's image chip, and the large 1800mAH battery that occupies most of the space.
As is the case when dismantling unibody devices, the casing is removed from around the screen. In the case of the One X, all the internals are attached to the display half of the device, and as seen from the image below, the device functions almost normally without the casing. The NFC chip is a part of unibody casing though. The Tegra 3 processor and HTC's ImageChip surround the 8MP camera sensor, with the battery covering most of the lower half of the device.
You can take a look at the images of the dismantled HTC One X below.