The NEX-5 + E 18-55mm supports a maximum video resolution of 1920 x 1080 pixels. That's over six times the video resolution of the most common video resolutions of 640 x 480 pixels (which is also supported by this Sony digital camera). In addition, this camera supports a video resolutions of 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 resolutions is in fact the best supported video resolution amongst all medium megapixel cameras that were released around the same time as this digital camera.
The worst supported video resolution across comparable types of digital camera is 320 x 120 pixels.
What does "video resolutions" mean?