A decade after Apple kicked off the era of highly portable laptop designs with the MacBook Air, Dell is looking to define the next era of laptop portability with its redesign of the XPS 13. Dell launched the new XPS 13 in January with an emphasis on reducing the overall size of the laptop. Meanwhile, Apple released its latest update to the MacBook Air last June. Which of the two laptops is the best choice for you? What follows is our comparison of Dell's new XPS 13 vs. Apple's latest MacBook Air on price and specs.