Buy iPhone Screen Replacement We reviewed the top screen repair options on the Web and consolidated it down to a short list.  Factors that influenced the rankings included quality of parts, cost, and how long the repair organization has been in business.  We also visited each site and reviewed customer feedback and testimonials.    Remember, there are essentially two different screen related parts you can buy for the iPhone 3G and 3Gs.  The first part is the digitizer and glass touch screen combined.  The second is the LCD which sits below the digitizer and glass.  Use our iPhone screen replacement guide to determine which part you need.