The iPhone 4 is the fourth generation of iPhone, and successor to the iPhone 3GS. It is the first device to support FaceTime, Apple's video calling application. It has an Apple A4 processor, 512 MB of eDRAM, a 3.5 inches (89 mm) LED backlit liquid crystal display with 960-by-640 pixel resolution, and the iOS 4 operating system. The following guide shows you how to convert video AVI, FLV, WMV, MKV, 3GP, RM, RMVB, AVS to iPhone 4 video/audio files and transfer video to iPhone 4. Step 1: Download Video to iPhone 4 Converter Free download video to iphone 4 converter which is a good video to iPhone 4 converter onto your PC. Install then run it. Step 2: Convert Video to iPhone 4 with one click Import videos to this iphone 4 converter. It supports more than 50 input videos formats. Then, select output video format as .mp4 (H.264, MPEG-4 video codec) from "Profile". Click "Convert" to begin video to iPhone 4 conversion. Step 3: Put the Converted Video to your Apple iPhone 4 Connect your Apple iPhone 4 to PC and sync converted video to iPhone with Apple iTunes. Now you can watch movies on iPhone 4 and enjoy the fresh brilliance and high definition on its higher quality screen.