What is the best ultrabook?

If you’re a student or an on-the-go office worker, portability is likely right at the top of your criteria for a laptop. We’ve ranked the best ultrabook options to help you find the perfect portable.

But what exactly is an ultrabook, and what distinguishes it from your average laptop? While Intel initially coined the term for its own range of ultra-portable laptops, it has since been used to reference any laptop that’s noticeably light and skinny.
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