OK, so you probably shouldn't try firing a rifle at your smartphone, even if it is wearing the new Holy Grail smartphone screen protector that maker Sir Lancelot's Armor says is made from "bulletproof" glass. Nonetheless, it does seem that the Holy Grail will give your gadgets the best protection around, provided you're willing to pay between $31 and $55, depending on the phone or tablet it's made for. However, Sir Lancelot's Armor CEO Jon Cyr puts this price into context by noting that "fixing broken screens costs an average of $250." So really, the $31 you're paying for a Holy Gail smartphone screen is just insurance to make sure you don't have to pay more down the line.
Meet the smartphone screen that’s made from ‘bulletproof’ glass