RICOH THETA X works great with Ethernet.
See this video for more information.
Out of the RICOH THETA lineup we tested, the THETA X is the only camera model that works reliably with Ethernet and the newest firmware from RICOH as of February 2022.
Previously, the V worked with Ethernet, but firmware upgrades eventually caused the Ethernet to stop working. The Z1 loses charge when Ethernet is being used.
The THETA X retains the charge fully. We verified the following:
Testing live preview over Ethernet for over an hour. No loss in battery charge.
Removed battery and the camera still works when connected to Ethernet with a USB-C adapter.
Viewing THETA X 360 stream in Firefox with Amelia Viewer.