The highest video resolution supported by the Sony DSC-WX50 is 1920 x 1080 pixels. That's over six times the video resolution of the most common video resolution of 640 x 480 pixels (which is also supported by this Sony camera). In addition, this camera support a video resolution of 1280 x 720 pixels and 1440 x 1080 pixels. A video resolution of 1920 x 1080 pixels is equivalent to Full HD video. You will require a Full HD TV or better to appreciate this level of detail.
A 1920 x 1080 pixels video resolution is in fact the best supported video resolution amongst all Compact cameras that were launched around the same time as the DSC-WX50.
Amongst comparable types of camera the worst supported video resolution is 320 x 240 pixels.