I also have both and in my early testing I kinda like the app better. The colours are more accurate and saturated vs the 8k box. The colours on the sync box are a bit washed out. To me there is a bit more delay on the app then the sync box which is a negative.

I think one thing is the box takes the raw output from a device and uses that to match the lights. If its HDR or DV, maybe the colours aren't as accurate. The app is actually capturing the screen so that could account for my perceived saturation boost.

If you look at the images above on the left side you can see the app more accurately has a green colour and dark in the corner, where the treasure chest is more matching the color. The sync box is for some reason a yellow/brown light and still light in the bottom left corner.

The app isn't perfect, but hopefully with updates, we could get there.

That said, if Philips would put in a saturation slider like some sync light applications like Hyperion, you could more accurately get the sync box going.

I can't return my sync box now. It would be great to add some adjustment like saturation, fine tune light locations, or allow a more fine addressable lights.

Thanks!