Seriously? Is this the current Ultra model 4661 or the 4640 version from 2016? I ask since the new version is half price ($49.99) for the next few days. I was contemplating upgrading my Roku 3 due to having purchased an LG OLED some months ago, but don't need any problems. Roku 3 owners haven't seen the OS 9 update yet. Thanks
The Ultra 4640 is 2016. The 4660 is 2017. The 2018 4661 is a marketing model number, in that the hardware is the same 4660 from 2017, with a better quality set of ear buds included. The 4640 has an optical out jack, but other than that I don't think you can tell the difference between a 4640 and 4660 from just looking at it. But there are a number of hardware differences between the 4640 and 4660 beyond the loss of the optical connection.
Nvidia Shield, Roku Stick (3600), and Ultra (4640), Insignia Roku TV, Sharp 4K Roku TV, Windows 10 Pro x64 running Serviio and Plex on a wired Gigabit network. Samsung JU7100 4K TV, Yamaha RX-V583, CenturyLink DSL