I did not say that I was guessing, I said that I would guess that that camera has an IMX678, because of the size and shape, if you hadn't already told us that it was. A response to your post:
Which I think was a response to my question:
You appear to be saying that it has a large rear camera, although I don't think we have seen an image of the Vantrue 4K rear yet, that has any way of judging the scale... the image in post #1 does appear to have a rather thin cable, maybe it is actually a normal thickness cable and the rear camera is quite large.