How to play AVI on iPhone (iPhone 4S included)
AVI might be one of the most used file format for saving video files online and offline. So if you happen to have some AVI videos and wanna play them on your iPhone on the move, you need to make sure one thing: your AVI files are compatible with iPhone (iPhone 4S included), if not, read on:
iPhone Compatible AVI Files
Apple customers can play these AVI on iPhone 4S or older iPhones:
Motion JPEG (M-JPEG) up to 35 Mbps, 1280 by 720 pixels, 30 frames per second, audio in ulaw, PCM stereo audio in .avi file format.
AVI is the audio-video interleave is a container introduced by Microsoft. Motion JPEG is a type of AVI compression, used mostly by digital cameras. While most downloaded AVI, which is ubiquitous for standard definition video content on the Internet, are encoded with XviD/DivX codec and there's no indication Apple is supporting such AVI.
All in all, iPhone supports some types of video cameras AVI footage via the camera card reader accessory, while it won't let you play downloaded AVI movies or AVI videos from other sources on iPhone.
How to Play AVI Files on iPhone
To play AVI video files unaccepted by iPhone, you need convert your AVI to iPhone friendly format first:
iPhone compatible formats:
Video formats supported: H.264 video up to 1080p, 30 frames per second, High Profile level 4.1 with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats; MPEG-4 video up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second, Simple Profile with AAC-LC audio up to 160 Kbps per channel, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats; Motion JPEG (M-JPEG) up to 35 Mbps, 1280 by 720 pixels, 30 frames per second, audio in ulaw, PCM stereo audio in .avi file format
This article use iSkysoft iPhone Video Converter for Mac to do the AVI to iPhone conversion. The Mac app provides iPhone preset so that you can directly choose the preset to let the program set the video format, video resolution and more automatically. With loss-less video quality and ultra-fast video conversion speed, the AVI to iPhone Mac task will be done in a flash.
The following are the detailed steps to convert AVI to iPhone on Mac OS X Lion.

- Directly drag your original AVI files into the iPhone Video Converter for Mac.
Tip:By the way, the AVI to iPhone Mac converter additionally allows you to trim, crop video or add effects to your video for enhancement.
- Select iPhone preset from format list. Now in the "Format" menu, you can find "iPhone" and choose is as the output video format.
- Hit the “Convert” button to begin the AVI to iPhone conversion. Just in a second, it is done. Then you can import the output videos to iPhone for playback.
- Import output files to iTunes and sync it to iPhone as what you used to do with other proper files, say, launch iTunes and connect iPhone to your Mac. Then drag and drop output files to iTunes and sync them to iPhone (iPhone 4, iPhone 4S included).

This iPhone Video Converter for Mac is a professional app for iPhone, iPad, iPod and other devices and apps. It offers you the solution to video converting, so you can watch videos on iPhone freely. With it on your Mac running Mac OS X Snow Leopard, Lion etc. watching all kinds of videos on iPhone could no longer be difficult.


