4Easysoft Mac Sony XPERIA Video Converter is a commercial video converter. It can be used to convert video files so that you can play them on your Sony XPERIA phone. There are many XPERIA phone models, and chances are that they will all play 3GP and MP4 files. Some might even play WMV files, too, but this converter doesn't output files in that format. The list of supported output video formats are: 3GP, 3G2, and MP4 (both H.264 and MPEG-4). Like I always say, those formats will play pretty much on any device.
Graphically, this video converter isn't distinct from the other 4Easysoft video converters. You get a main window with a video player for quick video previews, some space for your conversion queue, conversion settings and profiles at the bottom of the screen, and a toolbar at the top. There is a standard video editor for trimming and cropping and adjusting some of your videos' properties.
In my testing, I converted an MKV file into H.264 MP4. There were no problems and the file looked fine. I tried using a subtitle on my files (many MKVs come with subtitle tracks), but it didn't work.
In short, this is just a commercial converter that doesn't really offer anything special that you can't find in free converters.