These six tablets span four operating systems, multiple screen sizes and a range of connectivity features. (Photo: Jon Snyder/Wired.com)

In today’s crowded market, looking for a tablet is like buying a new car. Everything looks great when it’s slick, polished and sitting on the lot. The hard part is keeping track of what’s under the hood.

Wired.com took some of the front-runners from the current tablet field — the brand-new HP TouchPad, Apple’s iPad, Samsung’s Galaxy Tab and others — and stacked up their features side by side in the chart below.

In the wake of Apple’s iPad, which released April 2...