I have to send my phone back because there was a problem activating it and they think it is the phone not their system. So i took the chance to test how good the screen really is. Now i didn't try my hardest to scratch up the phone because i didn't want to be an ass and send back a messed up phone. But i was able to test it pretty well without having to worry about scratching my phone. So i started with a coin and rubbed it against pretty hard and got not even a small scratch. Next went on to keys started with a "dull" key and couldn't get any thing next went to the key i use when i need to open a box again tried pretty hard and didn't even get a small scratch. Next i went to a pocket knife (not a very sharp one) and used the business end and the point and agian try pretty hard and again get nothing. So to end i used the point of one of the things on a multi tool that looks like it is made to scratch stuff and at first still didn't get anything but when trying a little harder i was able to make a couple very small scratches in the upper corner. I am very impressed with this screen! I personally would feel fairly comfortable not using a screen protector and even have the phone in my pocket with keys coins that type of stuff. That being said its probably better to be safe and keep it separate at least. I also am going to put an invisible shield on it because i ordered it before i did this and the screen by itself gets fingerprints pretty bad. If i don't like the protector i will not use any protector.