What is the difference between the 3810R and 3810X? I am considering ROKU but also would like to stream Xfinity Beta and it says it works with the 3910R but only find the 3810X for purchase. Will the X stream Xfinity? Thanks.
The letter suffix only describes the marketing channel that particular device was sold through. R is retail, I'm uncertain what the X is, and there are some with W that were sold through Walmart. I believe the ones sold in Europe have EU as the suffix, and of course comes with a 220v wall plug with the proper pin arrangement.
As far as the hardware goes, and 3810 is a 3810. No difference at all.
Dan Roku Stick (3600), Ultra (4640), Ultra (4670), Premiere (3920), Insignia 720p Roku TV, Sharp 4K Roku TV, Nvidia Shield, Windows 10 Pro x64 running Serviio and Plex on a wired Gigabit network.
The Roku itself without accessories carries the X in the model number now. Where the Roku, its accessories, and the box it came carry R suffix. It use to be that the X was for on-line purchases and the R retail in a brick & mortar store. No differences in the Roku themselves between suffixes.