Convert RMVB to iPhone Video — Free Online Converter

The iPhone Video preset creates H.264 MP4 files specifically optimized for iPhone's hardware video decoder and display characteristics. RMVB's RealVideo codecs are completely unsupported by iOS — the iPhone has never included a RealMedia decoder in its media framework. For the large number of users in China and Southeast Asia with RMVB collections, this conversion is the only way to watch that content natively on iPhone.

iPhone cannot decode RMVB at all through native APIs. While VLC for iOS can software-decode RMVB, it's inefficient, drains battery rapidly, and may stutter on complex scenes. Converting to the iPhone Video preset uses the dedicated H.264 hardware decoder for smooth, power-efficient playback with proper iOS integration (AirPlay, PiP, share sheet).