One secret to prolonging the life of your smart phone or tablet is to use the right screen protector. Apart from looking bad, a large scratch can badly affect the usability of a smart phone's touchscreen. A screen protector is a thin piece of film that is affixed to the screen of an electronic device. Prices vary depending on the type and brand,however it is relatively inexpensive when compared to the cost of replacing a smart phone or cell phone and it's a great way to prevent unsightly scratches. Look below for the best screen protector for your needs