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[TexasIndian]

Buying new tv any day, and don't have box of my current ROKU Stick

to compare/determine if needs upgraded. What are the specs of 3810x?

[AvsGunnar]

@TexasIndian 

Here is Roku's comparison pages for the newer Roku devices. (newer Streaming Sticks are 382x models, rather than 381x models like yours.)  https://www.roku.com/products/compare

The Roku page for your 3810 is here, scroll to bottom of page for Tech Specs.  https://www.roku.com/products/streaming-stick-plus

You also may find a Roku Wikipedia page useful as well for comparisons between the model numbers.  https://en.wikipedia.org/wiki/Roku