no, the ProDVX Device. Currently, all tested Android Devices run the GUI and all Apps only in FHD and upscale to 4k. Only Video is in true 4k. We have talked about that here:
All known android devices have the same problem. A 4K layout will be downscaled to FHD by the Xibo App and that upscaled to 4k by the the device. Thats bad for text, pdf and charts you add to a layout. So it is very important to me to find an android device which run the app in 4k 