When you don't quite need the full functionality of a laptop and even need something a little bit smaller than a MacBook Air, Microsoft's latest Surface could be the one gadget you need to put in your bag. Starting at $800 (including digital pen), the 12-inch display of the Surface Pro 3 has an HD 2160 x 1440 resolution.
Unfortunately the keyboard cover is sold separately ($130), which is a necessity for someone looking for a laptop replacement. Like other Windows 8 products, you can switch between the touchscreen-focused Metro mode or classic computing with the Start button. Expect the price to go up again if you're searching for the same internal specs as the MacBook Air. The Intel i5 processor with 128GB of storage and 4GB of RAM is $1,000.
The Surface Pro 3 weighs under two pounds and has nearly nine hours of battery life.