Hi. I use an app called Viaplay. They send Premier League and Champions League in the Nordics. They air some games in 4K, and they say that they support 4K if I have Chromecast Ultra. Can i expect to get 4K with that? The Android TV app does not support 4K.

I tried it last week, but I think it was 1080p - not 4K. Could be due to the fact that I need an Chromecast Ultra - not the Mi Box and could be a bandwidth thing (but the box is located 5 cm away from the router. 300 Mbit/s fibre. AC WiFi). The resolution is fixed to 2160p in Android TV settings. Auto doesn't work as it locks on 720p for some strange reason.

No way to check bitrate or resolution while casting with Viaplay, but perhaps there is an app I can install that shows current bandwidth usage?