There's a question in my head for a long long time , what is the differences between a tablet , a laptop and an ultrabook ? It doubts me why everyone or even Microsoft is calling the Surface a tablet. And when Microsoft named it a tablet , people's reviews are : A tablet for $799 ~ $1949 ? That's freaking freaking OVERPRICED. ( actual review on youtube ) It needs to be thinner ( actual review on youtube ) Microsoft Surface Pro 3 v.s. Ipad Air , Ipad Air is the obvious winner ( actual review on youtube , Marsable) I don't get it ! It's more than a tablet for me. It runs full Windows 8.1 Pro , with such thickness and someone still wants it to be thicker. SP3 v.s. Ipad as a tablets , yes Ipad has more apps , but you can download Bluestacks in the SP3 , so I still think the SP3 will be a more obvious winner. As a laptop , I don't really like the OS X , but I like how it auto save every steps during your work ( example : When I'm editing my videos halfway using Final Cut Pro , and the program crashes , I open the program up again and the progress is still there , Windows may have this function already , but not every program ) Windows 8.1 Pro can let me install more programs compare to the OS X. What do you think ? Let me know your thoughts about the latest SP3 v.s. the MacBook Air or the Ipad Air And back to the question , what is the differences between a tablet , a laptop and an ultrabook.