How to Convert MP4 to Play on my new iPhone 6?

In order to successfully add MP4 movie files to iTunes and transfer MP4 to iPhone 6 or iPhone 6 Plus, what MP4 video parameter shall it meet when I use DVDfab to do the conversion?

It's very easy to finish the task intuitively. You can also follow me to see the photo below:How to Convert MP4 to Play on my new iPhone 6 - 1

Another way is to use Any Video Converter Free(http://www.any-video-converter.com/products/for_video_free/). It has iPhone 6 and iPhone 6 Plus in its output profile. You just need to import the video to Any Video Converter, choose iPhone 6 or iPhone 6 Plus as output profile and click Convert. Then the output videos will be played on iPhone 6 or iPhone 6 Plus.