There has once been a time when the line between smartphone, tablet, and computers was very broad. Like computers weren’t meant for running applications, smartphones came with type pad and served for one single purpose – calling (and sometimes playing games or music), and people weren’t paying much attention to tablets due to high price.
But nowadays, Smartphones are now being released with as much as 4gb ram, tablets with capabilities of handling desktop tasks and desktops turning into portable devices. Upon all one will be preferable than the other depending on users choice. So which one did you prefer

Source: Laptop Vs. Smartphone Vs. Tablet: Which One Should You Buy?