Regardless of what type of case you choose for your iPhone, a screen protector is a wise investment that not only offers scratch and crack protection, but can also reduce glare and fingerprint smudges on the screen. Screen protectors range in price from $10 to $30 for the various iPhone models.
NLU Products' BodyGuardz screen protectors fit perfectly over the iPhone's front screen. Optically clear and designed to prevent scratches, these protectors are ultra-tough yet extremely thin. Installation takes just minutes.
Similarly, the ZAGG InvisibleSHIELD screen protectors are designed to cover the iPhone's screen. However, you also can purchase a design that covers the entire unit (front and back) with a military-grade, extremely thin (.2 mm), highly durable and crystal-clear film that offers a tremendous level of added protection for your iPhone.