Just this month, Apple (NASDAQ:AAPL) began selling its new 12-inch MacBook. The computer is packed with great features like a high-resolution Retina display, ultra-thin and lightweight design, Force Touch trackpad, and the new USB Type-C port. Apple's new notebook is launching just as the company's Mac shipments are on the rise, increasing 19% year-over-year in Q4 2014.

But the MacBook isn't without some serious competition. ASUS, Microsoft, and Samsung all offer comparable devices -- and some are cheaper, faster, and have a lot more ports than Apple's new notebook. 

Click through the slideshow below to find out out which computers the MacBook's fighting head-on, and why Apple shouldn't be worried.