I don't think there is any difference.
I have just gone through the thread and according to Marzman who bought one
the display has a slight blue tint to it. everything else is as in the video.
There is a difference - the one in the video is white, and these are green. Secondly the one in the video has a second, smaller numeric readout (in green on the video) - which is not present on this model. Look at the photos of the unit, you can see there is no smaller display above the main one.
This is not to put anyone off buying one - im happy with mine, it's just not the one in the video.