MarkEagleUSA
TDR MEMBER
I think the 4K has more memory so it can buffer more.We bought a Firestick a few years ago and used it quite a while. When we got a 4K TV, I bought a 4K Firestick. It is a LOT quicker than the standard and I've yet to have a buffering issue. I say all that to say, not all the streaming devices are the same. I thought the only difference between the two was the picture quality, but the speed difference was enough that we bought another 4K Firestick for the bedroom TV that's not 4K.