A professional iPhone 4 Video Converter will be a good tool for iPhone 4. It can help you convert VOB to iPhone mp4 video even convert vob files to iPhone 4 HD video without any loss in quality. With this super VOB to iPhone 4 converter, directly add output video into iTune and transfer them to iPhone 4.

1. Add VOB files to VOB to iPhone 4 software - Click "Add" button to import local VOB files or directly drag and drop VOB Videos to the program. batch conversion supported.

2. Select iPhone 4 preset from format list and Set the output path: click on the “Format” bar, find iPhone group and select desired output format from the profile list like iPhone 4 (* .mp4), and the resulting movie looks quite nice on iPhone 4's screen.

3. Edit input files (optional)- powerful VOB to iPhone Converter can edit input videos such as trim the video length, crop the video playing area, adjust the video Effect (brightness, contrast and saturation), merge files into one, and add watermark, replace the original audio with other music and sounds file, etc.

4. Convert VOB to iPhone 4- Make sure that you have checked the files you want to convert, and then click "Convert" button to start converting VOB to iPhone 4 compatible format.