@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
Roku Community Streaming Expert
Just another Roku user... I am not a Roku employee.
Insignia RokuTV, Ultra 4660, 4802, 4850, Premiere+ 3921, Express 4k+ 3941, Streambar 9102