Mimi&reg; Touchscreen Replacement for Black Apple iPhone 4S A1387 A1431 Touch Screen Digitizer and LCD Display Assembly + Tool Kit LCD Resolution:960x640 326ppi 3.5-inch (diagonal) Retina display Front glass touch panel + digitizer + LCD display + supporting frame pre-assembled for easy installation Compatible with Apple iPhone 4S ONLY. NOT work with any other models. Inspected by professional QC team before shipping. Repairing instructions NOT included. Please search on YouTube.