Regarding the tablets, the main dimension on the basis of which they are classified and on which the marketing efforts are focused, is diagonal. In second place comes the thickness, the thinnest models being, as a rule, more expensive. And the weight can be mentioned, sometimes, as an attractive element, but the variations here are quite small.
Below, we discuss a little about how important these dimensions are for the various activities you can perform on tablet computers.
The dimensions between any two opposite corners of the screen are the diagonal of the tablet. This is the main size we will focus on in the discussion in the second part of this section. On the market, you can find gadgets of 7, 8, 10 and 12 inches diagonally, but there are also models with intermediate dimensions, such as 9.5 inches and so on.
The larger the screen, the higher the image quality. A Full HD resolution (1920 x 1080 pixels) on a 7-inch display may be useless, with smaller values sufficient for that size. On the other hand, a small resolution of 1280 x 800, on a large screen, could be tiring.
Length and width (ratio between them)
The ratio between the two screen sizes can be 16: 9 or 4: 3 – the first being the most common on tablets, monitors and TVs, for several years now, preferably especially when watching movies.
As a guide, before the years 2000-2005, most TV screens or monitors had a 4: 3 format, which means that the length was closer to the width. Today, you will rarely come across a tablet in this format.