When choosing a screen protector, we must, first of all, make sure that its size is correct for our Tablet. In addition, the screens have different degrees of hardness directly linked to their resistance. Check the table to find out which one suits you best.
HARDNESSMINERALSCRATCHED BY/SCRATCHES TO 1HTalcIt can be easily scratched by the fingernail. 2HGypsumIt can be scratched by the fingernail, but with more difficulty 3HCalciteIt can be scratched by a copper coin 4HFluoriteIt can be scratched by a steel knife or a windowpane 5HApatiteIt can be scratched by a steel knife or a windowpane, but with more difficulty 6HOrthoclaseIt can be scratched by steel sandpaper 7HQuartzScratches glass 8HTopazIt is scratched by tungsten carbide tools 9HCorundumScratched by silicon carbide tools 10HDiamondScratched by another diamond only