I don't think you'll notice any quality differences between your 4K Stick and a regular Roku player.
However, there's multiple Roku Sticks that support 4K, so I'd have to know what model Stick you have. If it's an older one (such as the 3810), a newer Stick is much improved, as are the latest players (except the Express, which I never recommend). But if you already have a newer model (like the 3820/3821), there would be little to gain moving to a Express 4K+ or Ultra, unless you're looking for the ability to make an Ethernet connection or connect an external drive for playing media.
NEITHER!!
Roku TVs & all Roku Devices are JUNK!!! I've owned them all......pure GARBAGE! And that's b/c Roku's operating system is pure GARBAGE!!!!!!
Do yourself a favor (eliminate frustration down the road) and purchase an AMAZON FIRE TV OR AMAZON FIRE STICK!! I Have Zero Problems Now!!
Why bother posting here? Millions of users are completely satisfied with Roku devices, so it’s unlikely you will change anyone’s minds here.
