Chromecast Ultra 2016: watch 4K support
The Chromecast Ultra (2016) still works for basic 4K but receives fewer updates than recent models and some 4K apps are dropping support.
- Risk level
- Usage risk
- Category
- Streaming and TV
- Last reviewed
- 2026-05-23
- Confidence
- medium
Support status
Watch: verify compatibility for each 4K and HDR app individually.
Typical symptoms
- 4K app refuses to play at maximum resolution
- HDR not recognized or disabled
- Unstable cast over Ethernet
Fixes to try
- Check that the Ethernet cable and adapter are working
- Try another HDMI 2.0 port on the TV
- Force an update via the Google Home app