A:Answer Hi joseD, Unfortunately, the X80J does not support all the features associated with HDMI 2.1. This TV supports HDMI eARC/ARC. For HDMI 2.1 features, we recommend the X900H/X90H series and Z8H series with updating the TV to the latest software version. Please check the link below for more details about the TV models support features that are specified in the HDMI 2.1 standard:
https://www.sony.com/electronics/support/articles/00246472
Thank you for the inquiry! Jay