Eken has released a large (confusingly named) lineup of new real 4K cameras based on the Ambarella platform. The results look promising so far – the 4K isn’t as tack sharp as some IMX117 cams but it’s a hellofa lot better than the H8R was.
I got the H8 Pro but if you’re interested in this lineup of cameras I would probably recommend the H8 Plus for most users because I highly value stabilization and it has the better sensor. I have not tested that camera yet though.
Note: In the video I accidentally said that the IMX117 is higher resolution. This is not correct. I meant to say that it is a higher performance sensor.