The screens are designed too take impact, much like windshields of cars, but a grain of sand WILL scratch the glass. There are other small debris that will scratch also.
The screen is resistant, not fool proof.
Micro finder cloths are recommend for their softness, that's why they are shipped with lcd monitors and tvs, just as someone said though, make sure it's clean.
Protectors are called protectors for a reason. Not everyone needs outlet plugs, but those with babies do, some people need screen protectors others don't. This doesn't have to be 100% either way. Preference is king.
The screen is resistant, not fool proof.
Micro finder cloths are recommend for their softness, that's why they are shipped with lcd monitors and tvs, just as someone said though, make sure it's clean.
Protectors are called protectors for a reason. Not everyone needs outlet plugs, but those with babies do, some people need screen protectors others don't. This doesn't have to be 100% either way. Preference is king.