Both are practically the same size physically, including screen size. The MacBook is lighter at 2 lbs compared to 2.44 lbs for the Surface Pro 3 with the keyboard.
Which do you think is a better computer for your everyday tasks around the house and for school work - Web browsing, Email, MS Office Apps, Netflix and other HD video streaming - where portability is a big factor?
Which do you think is a better computer for your everyday tasks around the house and for school work - Web browsing, Email, MS Office Apps, Netflix and other HD video streaming - where portability is a big factor?